[MOD][07 August] MultiROM v32a - Samsung Galaxy Ace 3

[MOD][07 August] MultiROM v32a - Samsung Galaxy Ace 3

Code:
#include
/*
* Your warranty is now void.
*
* I'm not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*
*/
Introduction
MultiROM is one-of-a-kind multi-boot mod for Galaxy ACE 3 LTE. It can boot any Android ROM as well as other systems like Ubuntu Touch, once they are ported to that device. Besides booting from device's internal memory, MultiROM can boot from external SD card. The main part of MultiROM is a boot manager, which appears every time your device starts and lets you choose ROM to boot. You can see how it looks on the image above. ROMs are installed and managed via modified TWRP recovery. You can use standard ZIP files to install secondary Android ROMs and MultiROM even has its own installer system, which can be used to ship other Linux-based systems.
Features:
* Multiboot any number of Android ROMs
* Restore nandroid backup as secondary ROM
* Boot from Internal memory and MicroSD Card (non tested)
Warning!
This whole thing is basically one giant hack - none of these systems are made with multibooting in mind. It is no longer messing with data partition or boot sector, but it is possible that something goes wrong (even if never happened until now) and you will have to flash stock firmware with Odin. Make backups. Always.
Installation, Note: Only manual installation is supported, because this mod is not officially supported.
MultiROM has 3 parts you need to install:
MultiROM
Modified recovery
Patched kernel
Now let's head to the installation. Note: Your primary ROM is recommended to be lollipop, because it doesn't act well as a secondary, due to enforcing selinux. Although you can use it as secondary, but change it's selinux status. My setup is Lollipop as primary, and KitKat as secondary. Stock ROM was not tested, because I hate it
I spent about 5 days working on this. My head will explode There is a tiny issue. MultiROM boot menu does not show up as it should. That's why we should use the MultiROM manager apk. and switch ROMs from the app.
Attention: The steps are if you use CM-12.1 as primary ROM
Kernel for Stock ROM with kexec-hardboot patch here
Step 1: Install this patched kernel over CM12.1. Or this, if you want OC.
Step 2: Install the modified Multirom Manager apk, I added support for our device
Step 3: Install Multirom
Step 4: Install MultiROM TWRP, via previous TWRP recovery, it can flash images
Step 5: Reboot into new recovery
Step 6: Install CM11, as secondary ROM!!
Step 7: Go to recovery-->Advanced-->MultiRom-->List ROM-->Choose CM11-->Flash Zip. Flash either stock kernel, or oc_kernel. Both include the necessary kexec-hardboot patch. Usually Multirom requires only primary ROM to have the kexec-hardboot patch, but in our case it does not work this way.
Now you are ready to switch ROMs. Ooh, almost forgot. MultiROM boot manager will show up if you connect the phone for offline charging, you will find out what happens on each case. This is the only bug that I can't resolve yet. Although multirom can be used, with this bug.
Code:
Update 20150829: Download everything from this [URL="https://androidfilehost.com/?w=files&flid=37974"]folder[/URL]
Kernel will be updated when ROM is built
Changelog: Re-implemented kexec hardboot and fixe last_kmsg creation
Video on how to install
Video on how to flash updates
*Thanks Tech Tutorials channel for the videos
NOTE: If secondary ROM does not boot, select Restorecon under multirom
Click to expand...
Click to collapse
Switch ROMs from the MultiRom manager app
NOTICE: I can't guarantee it will work on other variants rather than "R"
To uninstall Multirom simply flash this
You current ROM will not be erased by the installation.
Adding ROMs
1. Android
Go to recovery, select Advanced -> MultiROM -> Add ROM. Select the ROM's zip file and confirm.
Using MicroSD Card
During installation, recovery lets you select install location. You just select the location (extX, NTFS and FAT32 partitions are supported) and proceed with the installation.
If you wanna use other than default FAT32 partition, just format it in PC. If you don't know how/don't know where to find out how, you probably should not try installing MultiROM.
If you are installing to NTFS or FAT32 partition, recovery asks you to set image size for all the partitions - this cannot be easilly changed afterward, so choose carefully. FAT32 is limited to maximum of 4095MB per image - it is limitation of the filesystem, I can do nothing about that.
Installation to MicroSD Card takes a bit more, because the external memory is (usually) slower and it needs to create the images. Also boot process is longer, highly depends on card's class. You can find ROMs installed on SD card in the "External" tab in boot menu.
Updating/changing ROMs
1. Primary ROM (Internal)
Flash ROM's ZIP file as usual, do factory reset if needed (it won't erase secondary ROMs)
Go to Advanced -> MultiROM in recovery and do Inject curr. boot sector.
2. Secondary Android ROMs
If you want to change the ROM, delete it and add new one. To update ROM, follow these steps:
Go to Advanced -> MultiROM -> List ROMs and select the ROM you want to update.
Select "Flash ZIP" and flash ROM's ZIP file.
Explanation of recovery menus
Main menu
- Add ROM - Add ROM to boot manager
- List ROMs - List installed ROMs and manage them
- Inject curr. boot sector - Use this option if MultiROM does not show up on boot, for example after kernel installation.
- Settings - Well, settings
Manage ROM
- Rename, delete - I believe these are obvious
- Flash ZIP (only Android ROMs) - Flash ZIP to the ROM, for example GApps
- Add/replace boot.img - Replaces boot.img used by the ROM, this is more like developer option.
Source Code
MultiROM - https://github.com/Tasssadar/multirom/tree/master (branch master)
Modified TWRP - https://github.com/Tasssadar/Team-Win-Recovery-Project (branch master)
CM12.1 stock kernel w/ kexec-hardboot patch- https://github.com/kostoulhs/android_kernel_samsung_msm8930-common/tree/cm-12.1
CM11 stock kernel w/ kexec-hardboot patch- https://github.com/kostoulhs/android_kernel_samsung_msm8930-common/tree/cm-11.0
Stock kernel for stock rom w/ kexec-hardboot patch - https://github.com/kostoulhs/android_kernel_samsung_loganrelte/tree/master
MultiROM device tree - https://github.com/kostoulhs/android_device_samsung_loganreltexx/tree/multirom
Big thanks to Tasssadar for this awesome utility.
Also thanks @Grarak for the melius patch, i was based on it

Reserved

All the zip files listed above(steps 1 and 3) should be installed via TWRP, is that correct?

Levivig said:
All the zip files listed above(steps 1 and 3) should be installed via TWRP, is that correct?
Click to expand...
Click to collapse
Exactly
Sent from my GT-S7275R

This looks great, will defenatly try it. With 4,5 GB free internal memory do you recommend installing rom's on internal or SD ?

F. Dutch said:
This looks great, will defenatly try it. With 4,5 GB free internal memory do you recommend installing rom's on internal or SD ?
Click to expand...
Click to collapse
Installing on internal works. I haven't tried to install on sdcard yet
My setup is Lollipop as primary and KitKat as secondary, installed on internal
Sent from my GT-S7275R

kotzir said:
Installing on internal works. I haven't tried to install on sdcard yet
My setup is Lollipop as primary and KitKat as secondary, installed on internal
Sent from my GT-S7275R
Click to expand...
Click to collapse
Can I Make My Setup Like This ? :
Stock ROM(4.2.2) as primary and Lollipop as secondary , Stock ROM installed on internal , Lollipop ROM installed on SD card .
And my sd card use ext4 partition , is this partition supported ?
This is amazing feature !
Thanks a lot for this great work !
Sent from my GT-S7275R using XDA Free mobile app

zh_eco said:
Can I Make My Setup Like This ? :
Stock ROM(4.2.2) as primary and Lollipop as secondary , Stock ROM installed on internal , Lollipop ROM installed on SD card .
And my sd card use ext4 partition , is this partition supported ?
This is amazing feature !
Thanks a lot for this great work !
Sent from my GT-S7275R using XDA Free mobile app
Click to expand...
Click to collapse
Multirom works on fat systems on sdcard as fas as I know, see more info about the limitations on the OP. To use stock ROM you need a stock kernel with kexec hardboot patch, I have already patched it, it is also available on my github. I just haven't built it. I can build it although
Edit: Due to the bug, that multirom does not show up on boot, we actually can't install ROMS on Sdcard, they are not visible by MultiRom manager app.
Edit2: stock kernel with kexec-hardboot patch download
Edit3: Trying to make it fully functional
Sent from my GT-S7275R

kotzir said:
Multirom works on fat systems on sdcard as fas as I know, see more info about the limitations on the OP. To use stock ROM you need a stock kernel with kexec hardboot patch, I have already patched it, it is also available on my github. I just haven't built it. I can build it although
Edit: Due to the bug, that multirom does not show up on boot, we actually can't install ROMS on Sdcard, they are not visible by MultiRom manager app.
Edit2: stock kernel with kexec-hardboot patch download
Edit3: Trying to make it fully functional
Sent from my GT-S7275R
Click to expand...
Click to collapse
So I can't install any ROM on the SD card ..
until you fix the bug .. Right ?
Or just we will never can install ROMs on the SD card ?
Sent from my GT-S7275R using XDA Free mobile app

zh_eco said:
So I can't install any ROM on the SD card ..
until you fix the bug .. Right ?
Sent from my GT-S7275R using XDA Free mobile app
Click to expand...
Click to collapse
you can boot into multirom menu, if the phone is off and you connect it to the charger, so you can experiment a little

kotzir said:
you can boot into multirom menu, if the phone is off and you connect it to the charger, so you can experiment a little
Click to expand...
Click to collapse
So we will stay do this , just if we install a ROM in the SD card .
Or what ?! :|
OK , after flashing the stock kernel with kexec-hardboot patch, I can't flash any other kernel like arasma kernel in my stock ROM(4.2.2) ?
If I can't .. Can you make a kexec-hardboot patch for arasma kernel ?
Here : http://d-h.st/aYr
Or .. Can you make the lollipop kernel (1.7GHz) work on the stock ROM ?
Sent from my GT-S7275R using XDA Free mobile app

Its not my problem if I'm always not understand.
Its my brain problem ..
Just answer me ..
Why you always Ignore me ?
I'm just asking you , you can tell me oh I'm sorry ! I can't .. Just like this and I will accept .

zh_eco said:
Its not my problem if I'm always not understand.
Its my brain problem ..
Just answer me ..
Why you always Ignore me ?
I'm just asking you , you can tell me oh I'm sorry ! I can't .. Just like this and I will accept .
Click to expand...
Click to collapse
Mate I want to answer you and I do the best I can. Now I am working to make multirom fully functional, what don't you understand? The same time I am studying. It is pretty hard for me. The thing you ask me requires fully functional multirom. Enjoy it as it is, if you can and wait for the fix. Thanks
*Also, I will modify the stock kernel, as the others

kotzir said:
Mate I want to answer you and I do the best I can. Now I am working to make multirom fully functional, what don't you understand? The same time I am studying. It is pretty hard for me. The thing you ask me requires fully functional multirom. Enjoy it as it is, if you can and wait for the fix. Thanks
*Also, I will modify the stock kernel, as the others
Click to expand...
Click to collapse
:good::good: Nice Work Man

zh_eco said:
Can I Make My Setup Like This ? :
...my sd card use ext4 partition , is this partition supported ?
Sent from my GT-S7275R using XDA Free mobile app
Click to expand...
Click to collapse
May I ask why you do this?
MTP practically destroys any real world benefit that EXT could possibly offer you, and if you use UMS et al you'll hit permissions issues with the media that completely ruin its ability to function as removable storage unless every single one of the systems it touches only has a single user or you carefully craft the system environment so that the user always has the same UID.
It's just weird to use a journalled filesystem with access permissions as removable storage. Either MTP destroys any gains you might possibly get, or UMS makes it impossible to access the contents of the volume on ~99% of all the systems you'll ever encounter in the wild. Ever wondered why you never see external storage volumes with permission based filesystems? This is why. It's largely silly.

I tried to restore a backup of stock rom, i want to try if it works and maybe use it as 3rd rom but CWM says .android_secure.vfat.tar and .Android_secure.vfat.Tar.a are missing does anyone know what it means and how to fix it. Does CWM version matter? Can TWRP instal backups made by CWM?

F. Dutch said:
I tried to restore a backup of stock rom, i want to try if it works and maybe use it as 3rd rom but CWM says .android_secure.vfat.tar and .Android_secure.vfat.Tar.a are missing does anyone know what it means and how to fix it. Does CWM version matter? Can TWRP instal backups made by CWM?
Click to expand...
Click to collapse
To use it with stock ROM, you need to install a stock kernel with hardboot patch, there is one in the OP. TWRP can't restore backups from CWM, different format of backup. I don't see any reason of using CWM, since there is TWRP.
Sent from my GT-S7275R

kotzir said:
To use it with stock ROM, you need to install a stock kernel with hardboot patch, there is one in the OP. TWRP can't restore backups from CWM, different format of backup. I don't see any reason of using CWM, since there is TWRP.
Sent from my GT-S7275R
Click to expand...
Click to collapse
Thanks but the only backups i have of stock are made with CWM. When i try to restore it says .Android_secure.vfat.Tar and .Android_secure.vfat.Tar.a are missing so i can't restore and make a backup with TWRP. Found some info about it and trying tot make it work right now.

kotzir said:
Video on how to install
Video on how to flash updates
*Thanks Tech Tutorials channel for the videos
Click to expand...
Click to collapse
Thank U Very Much @kotzir For Adding My Videos To "OP"

Small update, check OP

Related

[EXPERIMENTAL] MultiROM v19 (discontinued)

This project is now discontinued and will recieve no further updates nor support.
First of all, thanks petter (https://github.com/havlenapetr), Czech Samsung Galaxy developer, for idea and source codes.
What do I mean?
You have one ROM in internal memory as usual, and another one in folder on SD card ext partition. You can easily switch between them - just move rom from ext partition to some backup folder.
See guide in second post
How is it done?
Lets look on how android boots - its (roughly) like that:
1. Bootloader - forks between recovery, fastboot and normal boot
2. Linux kernel - Unpacks its initrd, loads drivers and many more things, not important now
3. Init - kernel runs this program, which mounts android partitions, sets correct permissions to files, starts services, and in the end, starts android itself
4. Android - Dunno much about it yet, anyway not important now
So, what we need to do is mount something else than internal memory in init. Init parses & runs simple scripts, which makes it simpler to mount sdcard folders.
We need to add mknod and bind mounting to init binary. Unfortunately, we dont have sources of init modified by LG (that thing is three(!) times larger than init compiled from AOSP, what the hell is in there?!). That is solved by running modified init, which parses "preinit.rc" with mounts and then runs LG init.
Commit: https://github.com/Tasssadar/init/commit/aa3604ca90f5ef9b688fdc2e3cc865aa29a54809
preinit.rc: https://github.com/Tasssadar/init/blob/b4e701e8bc4831fadbefa64be48300139dcc2023/ramdisk/preinit.rc
This would be all, if original LG init would not remount /system and /data from internal memory. Also, nearly every ROM has different init.rc, and wont boot without it.
To solve this, I created "import_boot" command in init, which copies *.rc files and LG init from ramdisk(well, its only folder with these files extracted from ramdisk for now) on sdcard ext partition. This command also puts comments out every line with mount /data, /system or /cache in init.rc file, so LG init wont remount them.
Commit: https://github.com/Tasssadar/init/commit/dc3fa50d65d1221a4fb819d8ee616765ee043e83, https://github.com/Tasssadar/init/commit/f7bc141b1e4b7d214e49d4bb005c71237231436c and https://github.com/Tasssadar/init/commit/1cde6b6a093d4ac1f961e610c5229605bc517b52
Format of ROM on ext partition:
All files from paritions in internal memory copied to sd ext partition with preserved owners and permissions(!).
So, when I copy data, I do "cp -r -p /data/* /sd-ext/multirom/rom/data/" (I suggest to run this via adb shell while in recovery).
Currently, I mount /system, /data and /cache from sdcard. If one or more of these folders does not exist, its equivalent from internal memory is used.
It would be nice to have *.img files from nandroid backups instead of this, but as far as I know, they cant be just mounted.
As for *.rc files, I put them into /sd-ext/multirom/rom/boot folder. I would like to just copy boot.img and extract files in init, but I did not find way to extract it when I have hardly STL usable in init. I'd like to use kernel's internal decompressor, but I dont know how.
Limitations
- Both ROMs must be compatible with one kernel - kernel is already loaded in init
- ROMs must be for same baseband, obviously
- Kernel modules(wifi, for example) of both ROMs must be compatible with one kernel. That can be easily solved by copying modules from one ROM to another, though.
- It will be slower than internal memory.
Integration with recovery
Definitely possible & usefull. This is integration in my modified AmonRa recovery: https://github.com/Tasssadar/Amon-R...mmit/bd0232f7379993c296b0223973b81e8c55dc3ee2
Security risk
/system on sdcard can't be mounted read-only - I'd have to mount whole sdcard read-only. This is possible security hole, but you cant do much without root anyway, because of permissions. And if you have root, it does not matter if its read-only or not.
Conclusion
So, it is possible to have dual-boot. You can use it to develop ROMs(you can directly edit data in /data and /system), as backup ROM when you are testing something in internal memory which does not boot, and you need to call someone or when our devices will be so old that bad blocks in internal memory wont allow us to boot
But, as you can see, It is not something that average user could do, at least not yet. Maybe I could modify recovery to do everything for the user (copy data from /system, /data and /cache, extract *.rc files from boot) and create some flashable ZIPs which would modify the init.
But there are some problems - some ROMs may not be compatible with this and there are multiple recoveries out there, but theres not single one which is only for our phone - both AmonRa and ClockworkMod are developed for wide range of devices. Yes, both of them can be modified, but I doubt they creators would accept such inflexible and device-specific thing.
What do you think, is it worth it?
Tested ROMs (first one is in internal memory, second one is on SDcard)
Working:
Megatron and stock v10a ROM - stock rom is slow
Megatron and devoid #froyo-final - like ten times faster than stock xD
LightRom(2.2.2) and devoid #froyo-final (and vice versa)
Megatron and Megatron - both ROMs can have a2sd
Megatron and Mik's CM7 6.5.8 - since v2
Gingerbread 2.3.4 from Optimus Net and CM7 6.6.1 (thx eduardogouveia for testing)
Stock 2.2.2 and CM7 6.5.8 (thx eduardogouveia for testing) - if you have ext4 partition, you need custom kernel for stock ROM.
.void 2.3.4 and stock V20B (thx diazneoones for testing)
CM7 6.5.8 and .void 2.3.4 (thx diazneoones for testing)
CM7 nightlies and Lupohirp's СM9 (thx aquapp for testing)
Not working
None found yet, but when CM7 is on sdcard, it looses root. Trying to figure out why. - fixed in v10
PS: I hope I explained it correctly, not exactly good at this. Do not fear to ask, if you don't understand something.

OK, here goes guide for average user. This is still highly experimental feature, keep that in mind. Backup, backup backups and backup them to PC, read whole guide first, I am not responsible for your bricked phone etc.
GUIDE:1. Requirements
Ext4/Ext2/Ext3 partition on SDcard big enough to hold all files from /system and /data, which is from 170mb to 400mb (depends on ROM and apps installed), so I think 512mb partition is minimum (if its 90% or so free).
Modified recovery. Only AmonRa and CWM version is available at this time, TeamWin is coming "soon". You can find flashable zip at the bottom of this post, flash it before you proceed to next move. If something goes wrong, you can restore your recovery with zips from here.
Kernel with ext2/3/4 support, which is basically every but stock
Both ROMs you wanna use must be compatible with same kernel. See Limitations in previous post
2. MultiROM instalation
- Via MultiROM Mgr application
I recommend you do nandroid backup before installing via this app.
Download MultiROM Manager (link at the bottom of this), tap to "Tap to install via this app" and wait. As simple as that. Mgr will also install recovery for you (It will ask you which one, you can select AmonRa, CWM and none). App can check & install update, too.- Via recovery
Just download multirom.zip at the bottom of the post, make nandroid backup and flash it. Your current ROM will be the one in internal memory, we will setup the one on the SDCard in next move.
Now, try to reboot the phone (boot will take little longer, because it has to mount ext partition). If it boots up correctly, then its OK - your ROM is supported. If not, then restore your nandroid backup and post your ROM name here, maybe I'll try to make it working.
3. Setup ROM on the sdcard
Make nandroid backup (I am not kidding, you will need this one), flash ROM which you wanna to have on SDcard, do the first boot (because it will create dalvik-cache, and you dont wanna do that when its already on sdcard) and reboot to recovery again.
Go to "MultiROM options" menu and select "Create from current ROM". It will do everything for you (it takes time, though). ROM on the sdcard is placed in /sd-ext/multirom/rom/, backups are in /sd-ext/multirom/backup/.
Restore nandroid backup from beggining of this step and reboot. Wait until Boot manager shows up, and select SDcard as boot location. ROM from sdcard should boot. If your ROM from internal memory boots or if its stuck, something got wrong and you should restore from backup.
4. MultiROM recovery menu description
Active/deactive state is for recovery only, you can boot ROMs from backup in boot manager - that means its N-times boot rather than dual-boot.
When not active(boot from internal memory):
Activate (move from backup) - when you already have backup, this will move it to active folder (fast).
Activate (copy from backup) - same as above, but it copies it instead of moving
Create from current ROM - pretty self-explanatory
Create from ZIP file - see http://forum.xda-developers.com/showthread.php?p=22194117#post22194117
When active(boot from sdcard):
Deactivate (move to backup) - Moves current ROM to backup folder, so next boot will be from internal memory
Backup - Creates backup of current ROM
Erase current ROM - Deletes current rom, next boot will be from internal memory
Copy modules from int mem - Copies modules from ROM in internal memory to SDcard. Try this if WiFi does not work in SDcard ROM.
Flash ZIP - flash ZIP file to ROM on SD card, for example gapps.
5. Config file:
It is recommended to use Multirom Manager(see bottom of this post) to change config file.
File itself is placed on sdcard and its name is multirom.txt. Description of its contents is in this post(post is updated if something changes): http://forum.xda-developers.com/showthread.php?p=20045183#post20045183
6. Key bindings:
Since v11, you also can control MultiROM via touchscreen.
Anywhere: Hold Power button to shut down the phone
While on main screen:
VolUp/Down - list between actions
Menu - Confirm action
Back - Reboot to recovery
Power button - Sleep mode
While playing tetris
VolUp - return to main screen
VolDown - pause
Menu - move the piece to left
Home - hard-drop
Back - rotate piece
Search - move the piece to right
FAQ:Q: It is slow!
A: Its sdcard. It just is slower than nand memory.
Q: It does not work with my ROM
A: Post your ROM combination here, maybe I'll see to it.
Q: When do I need to reflash?
A: When you flash new ROM or do something which rewrites boot partition. Most (if not all) kernels are using Koush's AnyKernel, so they should not cause any problems.
Changelog & Download:(Always flash newest version)
Uninstaller: http://www.mediafire.com/?3eco51f2t0at77o (info here)
Changelog AND DOWNLOAD LINKS have moved to github: http://tasssadar.github.com/multirom/
Recoveries
AmonRa - based on 3.06: http://www.mediafire.com/?ld9g81igvze7na0 (9th March 2012 21:57)
AmonRa - based on 2.2.1: http://www.multiupload.com/7Y5HHNEPOT (20th October 2011 22:29)
CWM: http://www.mediafire.com/?6rfw0qbrddzq5d8 (9th March 2012 21:57)
TWRP: http://www.mediafire.com/download.php?o8kphxmfk9l01tl (21st October 2012 23:49)
MultiROM Manager app
http://forum.xda-developers.com/showthread.php?p=20610052#post20610052
(Always use newest version)
v24 - http://www.mediafire.com/download.php?1xy52tamzepibrx (TWRP support)
v21 - http://www.mediafire.com/?u9c3bmfbtf57dtm (Add charger settings)
v18 - http://www.mediafire.com/?g1lpsp66jc1cb1b (Add boot location settings)
v17 - http://www.mediafire.com/?l1li51sseaisz5j (Add brightness setting)
v15 - http://www.multiupload.com/B65WPFMFXP (Show & reset tetris high score)
v14 - http://www.multiupload.com/FWB5UBSMO1 (Updater now also check for app update, some minor fixes)
v13 - http://www.multiupload.com/NYYBX9CAFD (Update translations, add support for optimus V - http://forum.xda-developers.com/showthread.php?p=20657898#post20657898)
v11 - http://www.multiupload.com/1L3294ZAU7 (Fix mount issues on some roms, add menu to main screen, add link to xda)
v10 - http://www.multiupload.com/B3AVSFKDOW (Create /sd-ext/multirom folder on install)
v9 - http://www.multiupload.com/WW7TUNP7RY (read http://forum.xda-developers.com/showthread.php?p=20624306#post20624306)
v8 - http://www.multiupload.com/6OD7RQ74OE
v7 - http://www.multiupload.com/DJKMUGIVJ0

Something like this have the Xperia series. Maybe u find something u can use there.
Sent from my LG-P500 using XDA App

so this means we can test roms without replace current ??

Yes. Is my english so bad or you just don't read what I wrote?

Tasssadar said:
Yes. Is my english so bad or you just don't read what I wrote?
Click to expand...
Click to collapse
For the last time,you're speaking english perfectly p)

how to install your zip of amonra recovery i try but the recovery says that the zip dont have updatescript so it gives error....
i dont understand how to do this but ii´m searching this for a long time,if you can make a more frindley all user guide it will be very cool thankyou and hope you could doot....

*sigh* once again, this is [dev] thread, this is not something you can flash, at least not yet. You would know that, if you'd read whole post.

eduardogouveia said:
how to install your zip of amonra recovery i try but the recovery says that the zip dont have updatescript so it gives error....
i dont understand how to do this but ii´m searching this for a long time,if you can make a more frindley all user guide it will be very cool thankyou and hope you could doot....
Click to expand...
Click to collapse
[dev] means this is not something ordinary. Don't know what it is, don't mess with it.
Tasssadar said:
*sigh* once again, this is [dev] thread, this is not something you can flash, at least not yet. You would know that, if you'd read whole post.
Click to expand...
Click to collapse
Don't worry, you'll get more "hao cán i flush this into ma phones?" questions, good luck.

sounds like fun
thanks for bringing it for optimus one
but i have one question for you
I think in future kernel changing will also possible
because if we can flash kernel then we can make it to change
right?

Tasssadar said:
Yes. Is my english so bad or you just don't read what I wrote?
Click to expand...
Click to collapse
Maybe you just helped us with boot manager app
Sent from my LG-P500 using xda premium

I read the post but since the download you have is of a amonra recovery modified by you,i thougt that was a regular zip and only then make by abd the tutorial,thats why hi also ask a more friendly use because i now its not for averager use no need to get obset however im still happy hi was searching for that so hi dont mind waiting you make it more simple... sorry if that ofend you or franco lol we have to learn and its very hard now how to develop without having the proper nowledge like you all devs have and hi respect every dev even of he just make a simple app,by the way just dont send me to school lol where could i learn the bases to umderstand how to program java and then develop im asking this because all books hi find rekire previous nowleged of some progaming could some dev. Pointing me somewhere where i could learn and please dont be rude im just asking because i just dont love i want and hi will learn...
And baking to the thread what you find for me is one of the best and most important for our phones thanks a lot now just wainting a day everybody could use your work thank you
Sent from my LG-P500 using XDA Premium App

So your main question is: "Is it worth it?"
I would say, "Hell yeah it is!" but then again I do not have the know-how to pull something like this off.
If you decide to go ahead with it, I wish you the best of luck =P

I just modified Koush's AnyKernel so that it can modify ramdisk's content, so it is possible to install it with .zip file via recovery. I will add some modified version of CWM & AmonRA, create some walkthrough video and write some guide soon(c).
By the way, that kernel which is in devoid #froyo-final cant mount ext4 partition in init, dunno why, I'll look into it after raid.
EDIT: wtf, it just works now, and I did nothing Oo
EDIT2: Changes commited, now It can installed/controlled only by flashable ZIPs and recovery(well, only my modified AmonRa recovery for now). I'll do the rest soon, but I dont know when - maybe tomorrow (oh my, it is today actually already), maybe next month.

Flashable zips and guide added, see first and second post.

keep going I wanted something like this waiting when it can boot stock<froyo> and cm7....
thanx

gingerbread test
well i try with V20C,2.3.4 port(both with a2sd)and didnt woork after flash multiromv1.zip,when reobooting always return to recovery,so in recovery i go to multirom options and says no multirom folder so i start to think a2sd imcompatibelity,so i grab 2.3.3 V20G without changes oficial as lg give us but the results where the same no a2sd problem....
well later i will flash oldbaseband and try one of your combinations but i think its not compatible with gingerbread.....

I think I found it - on GB, there is "on fs" trigger in init.rc, which has only mounts in there, but I need to comment them out - all of them, so "on fs" trigger is empty, and init parser cant handle that. Will update soon.

Ok i will remain in new baseband to try when you update your exclente work...
Sent from my LG-P500 using XDA Premium App

v2 released, I have tested it with CM7 6.5.8, problem with stock GB should be the same as with CM7.

[MOD] [unofficial] Multirom V28 (GPE/STOCK - testing)

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Introduction
I was able to get multirom working on Motorola Moto G and would like to share with you guys. Moto G (falcon) is my first android phone (ya, you heard me correct. It took a longtime for me to switch to android ) and I am new to android development and XDA community.
I have converted my XT1033 to single sim variant after flashing XT1032_RETAIL-GB_4.4.4_KXB21.14-L1.40_36_cid7_CFC_1FF.xml.zip firmware. I did this to install Parandroid (currently it only supports single sim). It might work on the default firmware.
MultiROM is one-of-a-kind multi-boot mod for Nexus 7. It can boot any Android ROM as well as other systems like Ubuntu Touch, Plasma Active, Bohdi Linux or WebOS port.Besides booting from device's internal memory, MultiROM can boot from USB drive connected to the device via OTG cable. The main part of MultiROM is a boot manager, which appears every time your device starts and lets you choose ROM to boot. You can see how it looks on the left image below and in gallery. ROMs are installed and managed via modified TWRP recovery. You can use standard ZIP files to install secondary Android ROMs, daily prebuilt image files to install Ubuntu Touch and MultiROM even has its own installer system, which can be used to ship other Linux-based systems.
Features:
* Multiboot any number of Android ROMs
* Restore nandroid backup as secondary ROM
* Use for example Ubuntu Touch or Desktop alongside with Android, without the need of device formatting
* Boot from USB drive attached via OTG cable
You can also watch a video which shows it in action.
There are stil many issues, and I am still testing and learning :angel:.
- Only for falcon stock firmwares. Doesn't work on falcon GPE.
- Sometimes Wifi not able to get IP address (static config works) on secondary rom. (same issue is observed on primary rom - fixed after flashing latest kernel)
- Sometimes secondary rom boot failure. Need reboot.
- Touch doesn't seem to work on multirom, so need to use volume down key for navigation and power button got selection. (Fixed)
- On GPE sometimes when booting I see "exec '/system/bin/sh' failed: Permission denied" errors. reinstalling the rom in multirom fixes this issue. Need to check.
You can get the relavent files at following location
http://d-h.st/users/montamer
Multirom Files
TWRP with Mutirom changes
multirom-20140902-v28-UNOFFICIAL-falcon.zip
multirom_uninstaller.zip
Patched Kernels
Stock Kernel (only for Stock firmware not GPE)
Modiefied 3.4.103-XPerience-STK-14-gpemod for GPE stock firmware (original kernel from TeamMEX)
PA Kernel
I have tested booting following roms
- CynogenMod
- ParanoidAndroid
- Boot2Gecko
I will share any code modifications as soon as possible.
Warning!
It _is_ dangerous. This whole thing is basically one giant hack - none of these systems are made with multibooting in mind. It is messing with boot sector and data partition. It is no longer messing with data partition or boot sector, but it is possible that something goes wrong and you will have to flash factory images again. Make backups. Always.
Installation
1. Via MultiROM Manager app
Not supported at the moment.
2. Manual installation
Firstly, there are videos on youtube. If you want, just search for "MultiROM installation" on youtube and watch those, big thanks to all who made them.
Note 1: Your device must not be encrypted (hint: if you don't know what it is, then it is not encrypted).
Note 2: There have been reports that (not only) MultiROM does not work properly with older bootloaders.
MultiROM has 3 parts you need to install:
Modified recovery (TWRP with Mutirom changes) - download the IMG file from Multirom Files section and use fastboot or Flashify app to flash it.
- Fastboot command "fastboot flash recovery recovery.img"
Patched kernel - You can use either one of the stock ones in Kernel section or third-party kernels which include the patch. Download the ZIP file and flash it in recovery. or flash the img from fastboot.
- Flash the "Stock Kernel (only for Stock firmware not GPE)" if your using STOCK 4.4.4 firmware images using below fastboot command
fastboot flash boot stock_boot_patched.img
- Flash the 3.4.103-XPerience-STK-14-gpemod from recovery if you are using GPE 4.4.4 firmware.
MultiROM (multirom-XXXXXXXX-v28-UNOFFICIAL-falcon.zip) - download the ZIP file from Multirom Files section and flash it in recovery.
Note: make sure to disable screen timeout in recovery (multirom_patched_recovery.img) (not required in latest recovery build)
You current rom will not be erased by the installation.
Download links are in the second post.
Adding ROMs
1. Android
Go to recovery, select Advanced -> MultiROM -> Add ROM. Select the ROM's zip file and confirm. As for the space, clean installation of stock 4.2 after first boot (with dalvik cache generated and connected to google account) takes 676mb of space.
2. Ubuntu Touch
Use the MultiROM Manager app to install Ubuntu Touch.
Ubuntu Touch is in development - MultiROM will have to be updated to keep up with future changes in Ubuntu, so there's a good chance this method stops working after a while and I'll have to fix it.
Using USB drive
During installation, recovery lets you select install location. Plug in the USB drive, wait a while and press "refresh" so that it shows partitions on the USB drive. You just select the location (extX, NTFS and FAT32 partitions are supported) and proceed with the installation.
If you wanna use other than default FAT32 partition, just format it in PC. If you don't know how/don't know where to find out how, you probably should not try installing MultiROM.
If you are installing to NTFS or FAT32 partition, recovery asks you to set image size for all the partitions - this cannot be easilly changed afterward, so choose carefully. FAT32 is limited to maximum of 4095MB per image - it is limitation of the filesystem, I can do nothing about that.
Installation to USB drives takes a bit longer, because the flash drive is (usually) slower and it needs to create the images, so installation of Ubuntu to 4Gb image on my pretty fast USB drive takes about 20 minutes.
Enumerating USB drive can take a while in MultiROM menu, so when you press the "USB" button in MultiROM, wait a while (max. 30-45s) until it searches the USB drive. It does it by itself, no need to press something, just wait.
Updating/changing ROMs
1. Primary ROM (Internal)
Flash ROM's ZIP file as usual, do factory reset if needed (it won't erase secondary ROMs)
Go to Advanced -> MultiROM in recovery and do Inject curr. boot sector.
2. Secondary Android ROMs
If you want to change the ROM, delete it and add new one. To update ROM, follow these steps:
Go to Advanced -> MultiROM -> List ROMs and select the ROM you want to update.
Select "Flash ZIP" and flash ROM's ZIP file.
In some cases, you might need to flash patched kernel - get coresponding patched kernel version from second post and flash it to the secondary ROM sama way you flashed ROM's ZIP file.
Explanation of recovery menus
Main menu
- Add ROM - add ROM to boot
- List ROMs - list installed ROMs and manage them
- Inject boot.img file - When you download for example kernel, which is distrubuted as whole boot.img (eg. franco kernel), you have to use this option on it, otherwise you would lose MultiROM.
- Inject curr. boot sector - Use this option if MultiROM does not show up on boot, for example after kernel installation.
- Settings - well, settings.
Manage ROM
- Rename, delete - I believe these are obvious
- Flash ZIP (only Android ROMs) - flash ZIP to the ROM, for example gapps
- Add/replace boot.img - replaces boot.img used by this ROM, this is more like developer option.
- Re-patch init - this is available only for ubuntu. Use it when ubuntu cannot find root partition, ie. after apt-get upgrade which changed the init script.
Source code
Original MultiROM - https://github.com/Tasssadar/multirom (branch master)
Falcon modified MultiROM - https://github.com/montamer/multirom
Falcon modified kexec-tools - https://github.com/montamer/kexec-tools.git
Falcon CM kernel with kexec-hardboot-patch - https://github.com/montamer/android_kernel_motorola_msm8226.git
kexec-hardboot-falcon.patch
Modified TWRP - https://github.com/montamer/Team-Win-Recovery-Project
XDA:DevDB Information
MultiROM, a Tool/Utility for the Moto G
Contributors
Tasssadar
Montamer
Thanks
h2o64 for the post template

willing to test I've got an xt1034. all I need is a link.
montamer said:
I was able to get multirom working on Moto-G and would like to share with you guys :highfive:. Moto-G is my first android phone (ya, you heard me correct. It took a longtime for me to switch to android ) and I am new to android development and XDA community.
I have converted my XT1033 to single sim variant after flashing XT1032_RETAIL-GB_4.4.4_KXB21.14-L1.40_36_cid7_CFC_1FF.xml.zip firmware. I did this to install paranoidandroid (currently it only supports single sim). It might work on the default firmware.
There are stil many issues, and I am still testing and learning :angel:.
- Only for falcon stock firmwares. Doesn't work on falcon GPE.
- sometimes Wifi not able to get IP address (static config works) on secondary rom.
- sometimes secondary rom boot failure. Need reboot
- touch doesn't seem to work on multirom, so need to use volume down key for navigation and power button got selection
You can get the relavent files at following location
http : // d-h.st / users / montamer
mutirom files - falcon/multirom
patched kernels - falcon/hardboot_patched_kernel
I have tested booting following roms
- CynogenMod
- ParanoidAndroid
- Boot2Gecko
I will share any code modifications as soon as possible.
INSTALLATION:
- Flash multirom_patched_recovery.img from fastboot.
- Flash stock_boot_patched.img from fastboot if you are on stock rom
or flash PA-falcon-kernel-signed.zip (build kernel from aospal, should work on other roms????) from recovery.
- reboot to recovery
- Flash multirom-20140819-v27-UNOFFICIAL-falcon.zip from recovery
WARNING
Port is not tested completely and might damage your device. Not for the faint hearted
I will not be responsible for any damage. Try at your own risk and make sure to backup
Credits:
Tasssadar (multirom aurthor).
paranoid android team.
Click to expand...
Click to collapse
I'll try it out.

Does this replace the kernel on stock ROMs?
Also, does this modify the eMMC partitioning to store the second ROM system files or can you use external storage such as a USB stick via USB OTG

DustArma said:
Does this replace the kernel on stock ROMs?
Also, does this modify the eMMC partitioning to store the second ROM system files or can you use external storage such as a USB stick via USB OTG
Click to expand...
Click to collapse
same question... multirom needs kexec support in the base rom. so this is just mutirom system or does it flashes a kernel with kexec support?

Amazing! I'll try as soon as possible. Could you share with us your device tree and your kernel sources? [emoji4]

@TeamMex perhaps something interesting for u man!
OP any instructions on how to use it?

Has you patched memory allocator's and kexec the kernel? Port Multirom is easy xD I have the sourse moded on my github but kexec isn't easy so tell me about your kernel patch
Sent from my XT1032 using XDA Premium 4 mobile app

abhifx said:
same question... multirom needs kexec support in the base rom. so this is just mutirom system or does it flashes a kernel with kexec support?
Click to expand...
Click to collapse
DustArma said:
Does this replace the kernel on stock ROMs?
Also, does this modify the eMMC partitioning to store the second ROM system files or can you use external storage such as a USB stick via USB OTG
Click to expand...
Click to collapse
The stock_boot_patched.img and PA-falcon-kernel-signed.zip are patched to support kexec. You need to flash one of the kernels based on your primary rom, before flashing multirom.zip.
I think new version of multirom doesn't mess with the eMMC partitioning and I have not tried flashing secondary rom on USB OTG.

TeamMex said:
Has you patched memory allocator's and kexec the kernel? Port Multirom is easy xD I have the sourse moded on my github but kexec isn't easy so tell me about your kernel patch
Sent from my XT1032 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yes the kernels shared are patched with modified kexec_hardboot.patch from Tasssadar . I will share the changes soon.

yeshwanthvshenoy said:
@TeamMex perhaps something interesting for u man!
OP any instructions on how to use it?
Click to expand...
Click to collapse
Instruction should be similar to any other multirom flashing. check the original post from Tasssadar for more clear instructions.
http://forum.xda-developers.com/showthread.php?t=2011403

montamer said:
Yes the kernels shared are patched with modified kexec_hardboot.patch from Tasssadar . I will share the changes soon.
Click to expand...
Click to collapse
Interesting, I will be tuned to implement patch in my kernel.
cheers.

TeamMex said:
Interesting, I will be tuned to implement patch in my kernel.
cheers.
Click to expand...
Click to collapse
Awesome.
I'm just curious : how many time do you take to do this @montamer ?
That incredible
Are you a C // C++ developper ?
PS : Please make a clear and readable topic If you don't want I can propose you a design x')

?
Bugs? Dual sim XT1033?

montamer said:
The stock_boot_patched.img and PA-falcon-kernel-signed.zip are patched to support kexec. You need to flash one of the kernels based on your primary rom, before flashing multirom.zip.
I think new version of multirom doesn't mess with the eMMC partitioning and I have not tried flashing secondary rom on USB OTG.
Click to expand...
Click to collapse
fantastic... need to try this. after glorious mutiboot on nexus 4, i now have mutiboot on moto.
now where is the ubuntu build i want to test

montamer said:
Instruction should be similar to any other multirom flashing. check the original post from Tasssadar for more clear instructions.
http://forum.xda-developers.com/showthread.php?t=2011403
Click to expand...
Click to collapse
i do understand the instructions but adding them to ur OP would help first timers. we got people who dont have much experience with advanced stuffs like this man so was just suggesting!

Thank you very much! I'll wait for you to release the changes before implementing it on other kernels.
BTW the PA kernel does not work on LiquidSmooth - it boots but have no wifi/networking, just to say

It made you a little prettier topic :
Code:
[CENTER][IMG]http://i.imgur.com/vh3puLb.png[/IMG][/CENTER]
[b][U][size=5]Introduction[/size][/U][/b]
I was able to get multirom working on [B]Motorola Moto G[/B] and would like to share with you guys. Moto G (falcon) is my first android phone (ya, you heard me correct. It took a longtime for me to switch to android :p) and I am new to android development and XDA community.
I have converted my XT1033 to single sim variant after flashing XT1032_RETAIL-GB_4.4.4_KXB21.14-L1.40_36_cid7_CFC_1FF.xml.zip firmware. I did this to install Parandroid (currently it only supports single sim). It might work on the default firmware.
[INDENT]MultiROM is one-of-a-kind multi-boot mod for Nexus 7. It can boot any Android ROM as well as other systems like Ubuntu Touch, Plasma Active, Bohdi Linux or WebOS port.Besides booting from device's internal memory, MultiROM can boot from USB drive connected to the device via OTG cable. The main part of MultiROM is a boot manager, which appears every time your device starts and lets you choose ROM to boot. You can see how it looks on the left image below and in gallery. ROMs are installed and managed via modified TWRP recovery. You can use standard ZIP files to install secondary Android ROMs, daily prebuilt image files to install Ubuntu Touch and MultiROM even has its own installer system, which can be used to ship other Linux-based systems.
Features:
* Multiboot any number of Android ROMs
* Restore nandroid backup as secondary ROM
* Use for example Ubuntu Touch or Desktop alongside with Android, without the need of device formatting
* Boot from USB drive attached via OTG cable
[url=https://www.youtube.com/watch?v=JDnDNxqfSaw]You can also watch a video which shows it in action.[/url][/INDENT]
[INDENT] There are stil many issues, and I am still testing and learning :angel:.
- Only for falcon stock firmwares. Doesn't work on falcon GPE.
- Sometimes Wifi not able to get IP address (static config works) on secondary rom.
- Sometimes secondary rom boot failure. Need reboot.
- Touch doesn't seem to work on multirom, so need to use volume down key for navigation and power button got selection.
You can get the relavent files at following location
[URL="http://d-h.st/users/montamer"]http://d-h.st/users/montamer[/URL]
mutirom files - [B]falcon/multirom[/B]
patched kernels - [B]falcon/hardboot_patched_kernel[/B]
I have tested booting following roms
- CynogenMod
- ParanoidAndroid
- Boot2Gecko
I will share any code modifications as soon as possible. [/INDENT]
[b][U][size=5][color=Red]Warning![/color][/size][/U][/b]
[INDENT]It _is_ dangerous. This whole thing is basically one giant hack - none of these systems are made with multibooting in mind. [strike]It is messing with boot sector and data partition.[/strike] It is no longer messing with data partition or boot sector, but it is possible that something goes wrong and you will have to flash factory images again. Make backups. Always.[/INDENT]
[b][U][size=5]Installation[/size][/U][/b]
[INDENT][B]1. Via MultiROM Manager app[/b]
This is the easiest way to install everything MultiROM needs. [url=https://play.google.com/store/apps/details?id=com.tassadar.multirommgr]Install the app[/url] and select MultiROM and recovery on the [i]Install/Update[/i] card. If the [i]Status[/i] card says [i][b]Kernel:[/b] [color=red]doesn't have kexec-hardboot patch![/color][/i] in red letters, you have to install also patched kernel - either select one on the [i]Install/Update[/i] card or get some 3rd-party kernel here on XDA. You are chosing kernel for your primary ROM, [b]not[/b] any of your (future) secondary ROMs, so select the version accordingly.
Press "Install" on the [i]Install/Update[/i] card to start the installation.
[/INDENT]
[INDENT][b]2. Manual installation[/b]
Note: [COLOR="Red"]make sure to disable screen timeout in recovery[/COLOR]
Firstly, there are videos on youtube. If you want, just search for "MultiROM installation" on youtube and watch those, big thanks to all who made them.
[b]Note 1:[/b] Your device must [b]not[/b] be encrypted (hint: if you don't know what it is, then it is not encrypted).
[b]Note 2:[/b] There have been reports that (not only) MultiROM does not work properly with older bootloaders.
MultiROM has 3 parts you need to install:
[LIST]
[*][b]MultiROM[/b] (multirom-XXXXXXXX-v27-UNOFFICIAL-falcon.zip) - download the ZIP file from second post and flash it in recovery.
[*][b]Modified recovery[/b] (multirom_patched_recovery.img) - download the IMG file from second post and use fastboot or [url=https://play.google.com/store/apps/details?id=com.cgollner.flashify]Flashify app[/url] to flash it.
[*][b]Patched kernel[/b] - You can use either one of the stock ones in second post or third-party kernels which include the patch, you can see list in the second post. Download the ZIP file and flash it in recovery.
[/LIST]
[b]You current rom will not be erased by the installation.
Download links are in the second post.[/b][/INDENT]
[b][u][size=5]Adding ROMs[/size][/u][/b]
[INDENT][b]1. Android[/b]
Go to recovery, select Advanced -> MultiROM -> Add ROM. Select the ROM's zip file and confirm. As for the space, clean installation of stock 4.2 after first boot (with dalvik cache generated and connected to google account) takes 676mb of space.[/INDENT]
[INDENT][b]2. Ubuntu Touch[/b]
Use the [url=https://play.google.com/store/apps/details?id=com.tassadar.multirommgr]MultiROM Manager app[/url] to install Ubuntu Touch.
[b]Ubuntu Touch is in development - MultiROM will have to be updated to keep up with future changes in Ubuntu, so there's a good chance this method stops working after a while and I'll have to fix it.[/b][/INDENT]
[U][size=5][b]Using USB drive[/b][/size][/U]
[INDENT]During installation, recovery lets you select install location. Plug in the USB drive, wait a while and press "refresh" so that it shows partitions on the USB drive. You just select the location (extX, NTFS and FAT32 partitions are supported) and proceed with the installation.
If you wanna use other than default FAT32 partition, just format it in PC. If you don't know how/don't know where to find out how, you probably should not try installing MultiROM.
If you are installing to NTFS or FAT32 partition, recovery asks you to set image size for all the partitions - this cannot be easilly changed afterward, so choose carefully. FAT32 is limited to maximum of 4095MB per image - it is limitation of the filesystem, I can do nothing about that.
Installation to USB drives takes a bit longer, because the flash drive is (usually) slower and it needs to create the images, so installation of Ubuntu to 4Gb image on my pretty fast USB drive takes about 20 minutes.
Enumerating USB drive can take a while in MultiROM menu, so when you press the "USB" button in MultiROM, wait a while (max. 30-45s) until it searches the USB drive. It does it by itself, no need to press something, just wait.[/INDENT]
[U][size=5][b]Updating/changing ROMs[/b][/size][/U]
[INDENT][B]1. Primary ROM (Internal)[/B]
[LIST]
[*] Flash ROM's ZIP file as usual, do factory reset if needed (it won't erase secondary ROMs)
[*] Go to Advanced -> MultiROM in recovery and do [I]Inject curr. boot sector.[/I]
[/LIST][/INDENT]
[INDENT][B]2. Secondary Android ROMs[/B]
If you want to change the ROM, delete it and add new one. To update ROM, follow these steps:
[LIST]
[*] Go to Advanced -> MultiROM -> List ROMs and select the ROM you want to update.
[*] Select "Flash ZIP" and flash ROM's ZIP file.
[*] In some cases, you might need to flash patched kernel - get coresponding patched kernel version from second post and flash it to the secondary ROM sama way you flashed ROM's ZIP file.
[/LIST][/INDENT]
[u][size=5][b]Explanation of recovery menus[/b][/size][/u]
[INDENT][b][color=Blue]Main menu[/color][/b]
[b]- Add ROM[/b] - add ROM to boot
[b]- List ROMs[/b] - list installed ROMs and manage them
[b]- Inject boot.img file[/b] - When you download for example kernel, which is distrubuted as whole boot.img (eg. franco kernel), you have to use this option on it, otherwise you would lose MultiROM.
[b]- Inject curr. boot sector[/b] - Use this option if MultiROM does not show up on boot, for example after kernel installation.
[b]- Settings[/b] - well, settings.
[b][color=Blue]Manage ROM[/color][/b]
[b]- Rename, delete[/b] - I believe these are obvious
[b]- Flash ZIP[/b] (only Android ROMs) - flash ZIP to the ROM, for example gapps
[b]- Add/replace boot.img[/b] - replaces boot.img used by this ROM, this is more like developer option.
[b]- Re-patch init[/b] - this is available only for ubuntu. Use it when ubuntu cannot find root partition, ie. after apt-get upgrade which changed the init script.[/INDENT]
[u][size=5][b]Source code[/b][/size][/u]
[INDENT]MultiROM - [URL]https://github.com/Tasssadar/multirom[/URL] [b](branch master)[/b]
Modified TWRP - not available yet[/b]
Stock kernel w/ kexec-hardboot patch - not available yet
CM kernel w/ kexec-hardboot patch - not available yet
[B][U][SIZE="4"][PLAIN]XDA:DevDB Information[/PLAIN][/SIZE][/U][/B]
[SIZE=3][B]MultiROM, a Tool/Utility for the Moto G[/B][/SIZE]
[B][U]Contributors[/U][/B]
[URL="http://forum.xda-developers.com/member.php?u=1248420"]Montamer[/URL]

thanks man!

tried with GPE(partially) converted 1033XT
unable to install multirom-20140819-v27-unofficial-falcon.zip
base rom PA 4.5-Beta1
any one facing the same issue

Only for falcon stock firmwares. Doesn't work on falcon GPE.

[MI 4i/ferrari][OFFICIAL] DualbootPatcher - a much simpler dual boot solution

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Informations
Hey guys, today i will show DualBootPatcher one of the best apps for multi ROMs (i think this is the unique app for this ).
I have managed to support Xiaomi Mi 4i.
I am not the creator, just the supporter
Disclaimer
Your warranty is now void.
I am not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed. Please do some research if you have any concerns about features included in this ROM before flashing it! YOU are choosing to make these modifications, and if you point the finger at me for messing up your device, I will laugh at you. Hard. A lot.
It patches...
Custom kernels for dual boot support
ROMs so that they can be installed as secondary
Google Apps packages for AOSP-based ROMs
SuperSU so that it can be used in the secondary ROM
NOTE: If you want to dualboot a Miui ROM, I highly recommend installing Miui as the primary ROM. Otherwise, any mods will need to be patched before flashing.
What's supported?
Except Toaster and Alarm clocks pretty much everything is supported.
How to use the patcher
Android
Download the patcher apk and run it. Tap "Patch Zip File" from the navigation drawer and choose the file you want to patch.
Windows (GUI)
Double click DualBootPatcher.exe and choose the file you want to patch.
--------
After patching the zip file, a new file, like some_rom_dual.zip file will be created. For example, patching ktoonsez's
KT-SGS4-JB4.3-AOSP-TMO-08.28.2013.zip
would create a new
KT-SGS4-JB4.3-AOSP-TMO-08.28.2013_dual.zip
Instructions for dual booting
Before doing anything, download the Dual Boot Patcher app and the DualBootUtilities.zip from the download section below.
The patcher offers several locations for installing ROMs:
Primary: This is normally used for installing a zip to the primary ROM. It is not required, but is strongly recommended because it has code to prevent the zip from inadvertently affecting other ROMs.
Dual: Dual/Secondary is the first multiboot installation location. It installs to the system partition. This is a good spot for installing a second ROM because it doesn't take any space away from the internal storage.
Multi-slots: There are 3 multislots: multi-slot-1, multi-slot-2, multi-slot-3. These install to the cache partition. This is specifically for devices, like the Galaxy S4, that have a massive cache partition.
Data-slots: There can be an unlimited number of data slots. These install to the data partition and eat up space on the internal storage. This is useful for devices where the system partition is nearly full and the cache partition is tiny. These slots are named "data-slot-[id]", where "id" is something you provide in the app.
With that said, let's get to the "how to"!
First, boot into your primary ROM and install the Dual Boot Patcher app
Open the app and go to "Roms" in the navigation drawer. It will ask if you want to set the kernel. Make sure that you do.
Go to "Patch zip file" in the navigation drawer and patch the ROM or zip you want to install. You can select one of the installation locations described above.
There are two ways of flashing the patched zip file. You can either flash it normally from recovery or flash it using the in-app flashing feature. Both methods are explained below.
Flashing from recovery
To flash from recovery, just flash the patched zip file like you would for any other zip. Nice and simple.
In-app flashing
To use in-app flashing, go to "Roms" in the navigation drawer, tap the floating button on the bottom right, and add the zips you want to install. You can queue multiple zips and they will all be flashed in one go. Once you've added all the zips you want to flash, click the check mark in the action bar and they will be flashed right away.
A normal backup from recovery will backup every ROM. If you would like to back up ROMs individually, please see @rlorange's awesome tool: http://forum.xda-developers.com/showthread.php?t=2491299
App and data sharing
DualBootPatcher very recently got support for sharing apps and their data across ROMs. Maybe sharing is somewhat of a misleading term. The feature actually makes Android load the shared apps and data from a centralized location, /data/multiboot/_appsharing. So you're not sharing apps from one ROM to another per se. The ROMs are just loading the apps from one shared location. Let me make this clearer with an analogy.
Think of the people in a company office as ROMs. You want to share with your coworkers some documents (apps). Instead of telling them to come over to your desk to see those documents (sharing apps from one ROM to another), everyone goes to the conference room to look at the documents together (loading apps from a shared location). That's how app and data sharing is implemented.
To use app sharing, follow these steps in every ROM that you want to use app sharing:
Install the app you want to share
Open DualBootPatcher and go to "App Sharing" in the navigation drawer
Enable individual app sharing
Tap "Manage shared applications" and enable APK/data sharing for the app
Reboot
When you uninstall an app that's shared, it simply become unshared for the current ROM. That way, other ROMs are not affected. To continue the analogy above, if you quit your job, you won't shred the documents that everybody else was looking at.
If you unshare an app's data, it will go back to using the data it had before it was shared. In other words, you leave the conference room and go back to work on your own documents at your desk.
(Hope my analogy didn't suck too much )
How do I...?
Switch the ROM if something doesn't work properly?
You can flash the DualBootUtilities zip from recovery. It will provide a menu interface that allows switching to the various ROMs.
If you have TWRP, you can also switch manually by tapping Install -> Images (bottom right) -> Go to /sdcard/MultiBoot/[Your ROM]/ -> flash boot.img.
Wipe /cache, /data, /system, or dalvik-cache?
The easiest way is to do it from the app while booted in another ROM. Just go to "Roms" in the navigation drawer, tap the 3 dots options menu for the ROM you want to wipe, and tap "Wipe ROM".
Alternatively, flash the DualBootUtilities zip from recovery, which will also allow you to wipe a ROM.
NOTE: Don't use the recovery's built-in wiping abilities as that may delete non-primary ROMs!
Update the primary ROM?
Patch the zip for primary and flash it. The "primary" installation target is designed so that other ROMs won't be affected when you want to flash something for the primary ROM.
Update a non-primary ROM?
Patch and flash the zip exactly like how you did it the first time.
Flash a mod or custom kernel for the primary ROM?
Patch it for primary before flashing. If the zip does not wipe /cache, it is also safe to flash it directly.
Flash a mod or custom kernel for a non-primary ROM?
Just patch and flash it
Downloads:
I recommend against using the stable version of the patcher right now. So many changes have been made in regards to device support, ROM support, and general bug fixes that it's better to use the unstable snapshot builds until the next stable release is made.
[LINK] Dual Boot Patcher (Snapshots) and DualBootUtilities recovery zip
Source code:
DualBootPatcher: https://github.com/chenxiaolong/DualBootPatcher
DualBootUtilities: https://github.com/chenxiaolong/DualBootZips
Build instructions: https://github.com/chenxiaolong/DualBootPatcher/tree/master/docs
Know Issues
- The ROMs section sometimes bug and get a infinite refresh, close the app and open app again.
- Simple Anouncement : Please refrain from using /system and /cache partitions for secondary rom install
Special Thanks
@chenxiaolong for the awesome DualBootPatcher. @onano for intial works on Xiaomi devices, helping me with builds and also his thread template for Redmi 1S
@thewisenerd for initial bringing up Dual Boot Patcher to Xiaomi Mi 4i
XDA:DevDB Information
[MI 4i/ferrari][OFFICIAL] DualbootPatcher - a much simpler dual boot solution, ROM for the Xiaomi Mi 4i
Contributors
faizauthar12, thewisenerd, chenxiaolong, onano
ROM OS Version: 2.3.x Gingerbread
Version Information
Status: Testing
Created 2016-12-05
Last Updated 2016-12-07

Reserved
/* FAQ */
Q: is that possible to dual booting Miui with cm/AOSP rom?
A: yes it's possible, the primary rom must be Miui
Q: can i dual boot Miui and Miui?
A: you can't , while installing the secondary rom, you will got an error or something like that
Q: can we dual boot Miui 6 with anything or vice versa?
A: no you can't it will flash / patch the current primary Miui rom with the rom flashable zip
Q: is there is anyone do Miui and cm?
A: yes is it, go here (give him a thanks tho)
a video tutorial by @sharan.nyn
is here

- Will try this later. But anyways, thanks in advance!

Did anyone try this....?? I tried and getting an error(Unfortunately Dual Boot patcher(Debug) has stopped) while patching the ROM zip file. I am using the unofficial patcher app as advised in the instructions. Official app doesn't have the Mi4i in the device list hence not able to patch the zip. Can anyone please through some light to go forward.

apna.suresh0305 said:
Did anyone try this....?? I tried and getting an error(Unfortunately Dual Boot patcher(Debug) has stopped) while patching the ROM zip file. I am using the unofficial patcher app as advised in the instructions. Official app doesn't have the Mi4i in the device list hence not able to patch the zip. Can anyone please through some light to go forward.
Click to expand...
Click to collapse
Which ROM zip did you try to patch?
I was able to patch cm-12.1 zips correctly. Haven't tried with Marshmallow yet.

Appreciate if we could get the support for Elephone M2 as well....??? Below is the url for device thread.
http://forum.xda-developers.com/elephone-m2
---------- Post added at 12:01 PM ---------- Previous post was at 11:55 AM ----------
thewisenerd said:
Which ROM zip did you try to patch?
I was able to patch cm-12.1 zips correctly. Haven't tried with Marshmallow yet.
Click to expand...
Click to collapse
I tried below mokee official builds...
http://download.mokeedev.com/?device=ferrari&type=release
I did a trick that the patcher is installed in my other mobile "Elephone M2" and patched zip files successfully, then moved those files again to Mi4i and installed. It worked.
Surprisingly i could able to patch from my secondary ROM (Mokee) but not from the primary rom(MIUI). I believe that MIUI rom is not supporting for patching it seems.

apna.suresh0305 said:
Appreciate if we could get the support for Elephone M2 as well....??? Below is the url for device thread.
http://forum.xda-developers.com/elephone-m2
don't spam orig dev section, use private messaging system
---------- Post added at 12:01 PM ---------- Previous post was at 11:55 AM ----------
I tried below mokee official builds...
http://download.mokeedev.com/?device=ferrari&type=release
I did a trick that the patcher is installed in my other mobile "Elephone M2" and patched zip files successfully, then moved those files again to Mi4i and installed. It worked.
Surprisingly i could able to patch from my secondary ROM (Mokee) but not from the primary rom(MIUI). I believe that MIUI rom is not supporting for patching it seems.
Click to expand...
Click to collapse
provide logcat if possible

Thanks a lot for this, after years of runing multi boot on laptop, now I can runing multi boot on phone also. I have succses with triple boot install, everything is working well except one little thing: can in-app switch to another rom only if I on primary (RR 5.1.1), but, if on secondary (slim bit 6.0.1) or on data-slot rom (RR 6.0.1), I can switch to another rom only from twrp via flashing boot.img, even DualBootUtility.zip not working.
I have a one question: What is a Leaks app, who cames with DualBoot patcher app?? What means all that notifications/messages MainActivity leaks, leaks this, leaks that, etc... and what mean that message about memory dumping?? Thanks for answer.

cannot flash cm13 as secondary using miui as primary. Please if any body has tried elaborate steps to dualboot.

If you want to install cm13 as a secondary, that mean cm13 will be installed in chroot environment inside your MIUI ROM, exact path is /system/multiboot/dual. MIUI is "little big" rom, did you check how much free space you have in your MIUI /system partition? And what kind of error you got in recovery when you try to flas secondary.
In any case, steps for flashing are:
1. Boot into MIUI
2. Open Dual Boot Patcher app
3. Go to "Patch Zip File" option
4. Add your cm13.zip (and gapps optional), choose "secondary" on popup, if you want to install as a secondary on /system partition of existing rom
5. Press check mark in top right corner to patch zips you added
6. Boot into TWRP and flash cm13-blah-blah-dual.zip (and gapps-blah-blah-dual.zip optional) just normal, as a usually roms.
That's it.

Do i need to patch primary rom also before installing secondary?
I tried to upgrade primary stock rom with primary patched rom, got error cannot flash over rom through Dual Boot Patcher App.
I tried to clean install primary via TWRP, got error Failed to compute sha1sum of boot. Failed to flash zip file.
How do i make it work? Do I keep primary stock ROM as it is (MIUI) or patch primary ROM and flash secondary CM13.

stiw47 said:
Thanks a lot for this, after years of runing multi boot on laptop, now I can runing multi boot on phone also. I have succses with triple boot install, everything is working well except one little thing: can in-app switch to another rom only if I on primary (RR 5.1.1), but, if on secondary (slim bit 6.0.1) or on data-slot rom (RR 6.0.1), I can switch to another rom only from twrp via flashing boot.img, even DualBootUtility.zip not working.
I have a one question: What is a Leaks app, who cames with DualBoot patcher app?? What means all that notifications/messages MainActivity leaks, leaks this, leaks that, etc... and what mean that message about memory dumping?? Thanks for answer.
Click to expand...
Click to collapse
Can you explain the procedure step by step how did you manage to get triple boot ? Thanks

Account removal
Deleted

Is the project still going?
The status is testing from the first time I saw this thread

Hello. Somewhen at begining of this year, I was use some unofficial version of this app on MI 4i, founded here, in this thread, and mentioned version was working properly. Now, I want to fire up multiboot again, but as I see, things was changed here. Actualy, there is not MI 4i as supported device in latest snapshot provided in first post. Can someone give me a link for previous unofficial Dual Boot Patcher app?
Thanks in advance.
EDIT: Sorry, guys, such a stupid from my side. I found an app, in first post ofcourse.

It's possible
Sorry cause double post, but just for info, I successful running a MIUI V8.0.2.0.LXIMIDG Global Stable in dual boot with ResurrectionRemix-M-v5.7.4-20161005-ferrari from @Rohan purohit
Yes, yes, MIUI 8 in combination with M custom ROM on same phone. We already know, if we want to install L or M custom ROM on our phone, we must have 6.x.x firmware as a base. Procedure for making dual boot MIUI 8 + L/M custom ROM is same as usually. Main trick is how to switch ROM. Again, same as usually, but before every switching, you have to flash firmware files from recovery - 6.x.x if you switching to custom ROM and 8.x.x if you switching to MIUI.
Conclusion: I realy don't like MIUI, I am a person who like AOSP way, but MIUI camera is really really great, and some other features are pretty cool, now I have best from both world.
Unfortunately, this thread is little dead , but if you want to setup something like this or similarly, and stuck somewhere, be free to ask here or PM me, and I can write some mini tut with steps.

stiw47 said:
Sorry cause double post, but just for info, I successful running a MIUI V8.0.2.0.LXIMIDG Global Stable in dual boot with ResurrectionRemix-M-v5.7.4-20161005-ferrari from @Rohan purohit
Yes, yes, MIUI 8 in combination with M custom ROM on same phone. We already know, if we want to install L or M custom ROM on our phone, we must have 6.x.x firmware as a base. Procedure for making dual boot MIUI 8 + L/M custom ROM is same as usually. Main trick is how to switch ROM. Again, same as usually, but before every switching, you have to flash firmware files from recovery - 6.x.x if you switching to custom ROM and 8.x.x if you switching to MIUI.
Click to expand...
Click to collapse
Hey I'm trying to do exactly that! But I'm a little confused about what you mentioned - I am currently running MIUI 8 and wanted to flash a custom M ROM with the DualBoot Patcher, do I need to flash MIUI 6 before doing this? Or can I proceed to setting up the dualboot alongside MIUI 8? I also didn't understand what you meant about switching between the ROMs, do I need to flash a different version of MIUI to the MIUI partition every time I want to switch?
Sorry for so many questions, I was just confused about that and really wanted to do this, to get the best both MIUI and clean Android!

fonefan88 said:
Hey I'm trying to do exactly that! But I'm a little confused about what you mentioned - I am currently running MIUI 8 and wanted to flash a custom M ROM with the DualBoot Patcher, do I need to flash MIUI 6 before doing this? Or can I proceed to setting up the dualboot alongside MIUI 8? I also didn't understand what you meant about switching between the ROMs, do I need to flash a different version of MIUI to the MIUI partition every time I want to switch?
Sorry for so many questions, I was just confused about that and really wanted to do this, to get the best both MIUI and clean Android!
Click to expand...
Click to collapse
You should download or transfer a custom rom .zip file (and gapps optional) on your phone
Open Dual Boot Patcher app and patch all .zip files you want to install as a 'Data slot' (be creative and give some name to your data slot, it is mandatory).
After this you will get new .zip files (e.g. Rom-Name-data-slot-name.zip and Gapps-data-slot-name.zip) and this is a whole magic. Those new .zip files have instructions to be installed inside /data/multiboot/data-slot-name folder inside your primary ROM, not inside /system as ussual.
You will get a modded boot.img inside /sdcard/MultiBoot/data-slot-name also, and this boot.img have instructions to boot OS from /data/multiboot/data-slot-name , not from /system as ussual
Before installation of secondary ROM, start DualBoot Patcher app, and set a kernel of MIUI as a primary:
This is not nothing specialy, after this you will get a stock boot.img of MIUI8 inside a /sdcard/MultiBoot/primary, but you'll need it for further booting back to MIUI
Boot into TWRP and install a secondary ROM and gapps, usually as a normal rom and thats it.
***Switching between ROMs***
From MIUI to Custom:
Boot into TWRP
Install V6.6.10.0.firmware.zip (this is not whole ROM, this is already known firmaware files, here from xda)
Install /sdcard/MultiBoot/data-slot-name/boot.img as => Image => Boot
Reboot System and whoala, you are in custom ROM.
From Custom ROM to MIUI:
Boot into TWRP
Install V8.0.2.0.firmware.zip (this is not whole ROM, this is same as V6.6.10.0.firmware.zip mentioned above, but with firmware files for MIUI 8, packed by me )
Install /sdcard/MultiBoot/primary/boot.img as => Image => Boot
Reboot System and whoala, you are in MIUI.
I hope, I was helpful

YES that really helped clarify the process, thank you SO MUCH!! I really appreciate it!!

@stiw47
seems you're happy with dual boot patcher
check this out
https://dbp.noobdev.io/
have a nice day

[MOD] MultiROM v33 for Xperia L [Updated 02-10-2017]

Downloads
1. Main downloads
MultiROM: multirom-2017MMDD-v33x-taoshan.zip
Modified recovery (based on TWRP 3): multirom-2017MMDD-recovery-fota-taoshan.zip
OPTIONAL: Kernel w/ kexec-hardboot patch (msm8930 Marshmallow based):
multirom_kernel-2016MMDD-taoshan.zip
If used, kernel with kexec-hardboot patched needs to be only in your primary ROM!
* No longer required thanks to the no-kexec workaround.
2. Third-party kernels with kexec-hardboot patch
* None, No longer needed due to no-kexec implementation.
3. MultiROM Uninstaller
MultiROM uninstaller: multirom_uninstaller.zip
* Flash uninstaller zip from recovery to remove MultiROM completely. This will also remove all your secondary ROMs.How to install for the first time
Flash the 2 MultiROM zips as explained
Reboot to the FOTA Recovery (Volume +)
In MultiROM TWRP, Add a ROM, set everything properly
Wait for the ROM to be installed (can take a while)
In MultiROM screen, choose the ROM location
For the concerned ROM, "Flash zip" for wished zips (GApps, SuperSU, Addons...)
OPTIONAL: Read about the no-kexec workaround by nkk71
Reboot the phone and Enjoy MultiROM!
Changelogs
Code:
=========================================
MultiROM v33x - TWRP 3.1.1 - 02/10/2017
=========================================
* Fixed incorrect mounting of partitions in TWRP
* Removed unused and deprecated flags in TWRP
* Fixed MultiROM TWRP versioning
=========================================
MultiROM v33x - TWRP 3.1.1 - 24/09/2017
=========================================
* [B]Fixed touchscreen issue in MultiROM UI[/B]
* cyttsp3: Update multi-touch protocol for display driver
* defconfig: Compress kernel with XZ (Smaller TWRP Size)
* MultiROM UI dimensions completely fixed
* Access to MultiROM color themes and Shutdown
* Include all recent improvements from TWRP 3.1.1
* Updated to no-kexec workaround v4.1 by nkk71
* Autoboot accessible for external / MicroSD
* Improved versioning with header showing build date
* Built in a clean new tree of Android 7.1.2 (replaces 6.0)
* Multiple fixes to support 7.1 changes
* Fix the 7.1 busybox cpio corruption, needed for MultiROM
=========================================
MultiROM v33x - TWRP 3.1.0 - 15/06/2016
=========================================
* Fixed MultiROM logo in UI
* Some Minor changes in the UI
=========================================
MultiROM v33x - TWRP 3.0.2 - 13/06/2016
=========================================
* Initial public release

FAQ and other notes
FAQ and other notesAbout security
In order to make multi-booting possible, MultiROM has to sacrifice some security measures. Firstly, on secondary Android ROMs, /system is not mounted read-only. While there are other things preventing malicious software from messing with /system, this might potentialy make it easier for such software to attack that system.
Next, MultiROM doesn't work with /data encryption. Not many people who use custom ROMs also use encryption anyway, so that isn't much of a concern.
What do the ROMs share?
All ROMs are separate, except /sdcard, which is shared between all Android ROMs.
Why is my USB connection to computer not detected ?
Uncheck the "Enable ADB" option in MultiROM Settings.
How many ROMs can I have?/Where are the ROMs stored?
You can have as many ROMs as you can fit in your /sdcard. All the ROMs are stored in /sdcard/multirom/roms or on an USB drive./external SD card. This folder is unaccessible in Android, to prevent mediascanner from scanning it. You can either in recovery, or obtain root and go to /data/media/0/multirom/roms.
Can I have different versions of Android working alongside?
Yes.
The menu with all the ROMs won't show up during boot, how to fix it?
Either re-flash the MultiROM zip or go to recovery, Advanced -> MultiROM -> Inject curr. boot sector.
The reason for this is that something rewrote your boot.img, which happens for example when you flash a kernel. MultiROM's boot menu is part of the boot image, so it has to be added into it again.
The installation fails with "trampoline not found -1"
Often the issue appears because the ROM zip has a nested zip for rooting methods. Best solution is to remove the root zip from the ROM and flash it separately later.
Something wrong happened, I lost something or it's really laggy
You have been warned about making backups & the fact this is more experimental than stable.
You alone will be responsible for loosing data or having an usable ROM when you really needed it.
Everyone in this thread will try to help you, but we can't do backups of your data ourselves.
Thanks for your understanding, remember to read the previous comments and please try to help each other.Current local manifest of the MultiROM build
Code:

Awesome work bro,thanks!!!

You are the best
Honestly, I never imagined that I'll be able to see multiRom on Xperia L
Thanks Dev. :laugh:

Awesome dev!
Will test it as soon as possible!
Thanks!

Awesome! Will test it for sure

WTF (What The Fantastic)
You're the best I'll try it ASAP

Just wanna make things clear
1. Can I install it without reflashing the current ROM?
2. Installing Rom to external SD Card Won't format and delete all the data?

So it doesn't mess with memory partition??
That means there's no hardbrick just (maybe) softbrick.
Again thank you very much. For your hard work

Mouaz Kaadan said:
Just wanna make things clear
1. Can I install it without reflashing the current ROM?
2. Installing Rom to external SD Card Won't format and delete all the data?
Click to expand...
Click to collapse
1. Yes
2. Yes. You can keep your data along with ROM installation on ext sd.
n78 shadow said:
So it doesn't mess with memory partition??
That means there's no hardbrick just (maybe) softbrick.
Again thank you very much. For your hard work
Click to expand...
Click to collapse
No chances of bricking at all if you follow instruction and flash it correctly.

Wow. Extremely awesome, thanks for making this for Xperia L!
Just two questions: Does this work by "unpacking" the rom on external memory and booting as if it was internal? Also, how do we get Ubuntu (or any other Linux distro) to run on our device? (are there flashable zips for that?)
Sent from my taoshan using XDA Labs

Aenadon said:
Wow. Extremely awesome, thanks for making this for Xperia L!
Just two questions: Does this work by "unpacking" the rom on external memory and booting as if it was internal? Also, how do we get Ubuntu (or any other Linux distro) to run on our device? (are there flashable zips for that?)
Sent from my taoshan using XDA Labs
Click to expand...
Click to collapse
1. Yep.
2. There is no Ubuntu OS ported for Xperia L.

Thanks for this awesome Multirom. I have question. Can i install both stock rom and custom rom as a dual boot.?

kumardeepu said:
Thanks for this awesome Multirom. I have question. Can i install both stock rom and custom rom as a dual boot.?
Click to expand...
Click to collapse
Please go through entire thread. Everything is written there.
How many ROMs can I have?/Where are the ROMs stored?
You can have as many ROMs as you can fit in your /sdcard. All the ROMs are stored in /sdcard/multirom/roms or on an USB drive./external SD card. This folder is unaccessible in Android, to prevent mediascanner from scanning it. You can either in recovery, or obtain root and go to /data/media/0/multirom/roms.
Can I have different versions of Android working alongside?
Yes.
Click to expand...
Click to collapse

STRYDER~007 said:
Please go through entire thread. Everything is written there.
Click to expand...
Click to collapse
First Stockrom through flashtool>then multirom zip>modified recovery> custom rom am i right?

kumardeepu said:
First Stockrom through flashtool>then multirom zip>modified recovery> custom rom am i right?
Click to expand...
Click to collapse
Yes.
Well actually in detail, First stock rom via flashtool->Root->Install SuperSU->Install Recovery via Recovery Installer app->Flash MultiROM Recovery zip->Reboot to MultiROM recovery->Flash MultiROM zip->Add Custom ROM!

MultiROM Updated
MultiROM updated with minor UI changes. Check OP.
Changelogs-
Code:
** 15-06-2016
- Fixed MultiROM logo in UI
- Some Minor changes in the UI

It fails when i try to flash the multirom zip
Why??
Sorry for my bad English

ShadowA9 said:
It fails when i try to flash the multirom zip
Why??
Sorry for my bad English
Click to expand...
Click to collapse
Flash MultiROM recovery zip first then boot into new recovery and flash multirom zip.

[Addison]MultiROM v33 [No Kexec Workaround]

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}
Introduction
MultiROM is one-of-a-kind multi-boot mod for MotoZ Play. It can boot any Android ROM as well as other systems like Ubuntu Touch, Plasma Active, Bohdi Linux or WebOS port, once they are ported to our device. Besides booting from device's internal memory, MultiROM can boot from USB drive connected to the device via OTG cable. The main part of MultiROM is a boot manager, which appears every time your device starts and lets you choose ROM to boot. You can see how it looks on the left image below and in gallery. ROMs are installed and managed via modified TWRP recovery. You can use standard ZIP files to install secondary Android ROMs, daily prebuilt image files to install Ubuntu Touch and MultiROM even has its own installer system, which can be used to ship other Linux-based systems.
Features:
* Multiboot any number of Android ROMs
* Restore nandroid backup as secondary ROM
* Use for example Ubuntu Touch or Desktop alongside with Android, without the need of device formatting.
* Boot from USB drive attached via OTG cable
Warning!
It _is_ dangerous. This whole thing is basically one giant hack - none of these systems are made with multibooting in mind. It is no longer messing with data partition or boot sector, but it is possible that something goes wrong and you will have to flash factory images again. Make backups. Always.ays.
Installation
1. Via MultiROM Manager app
This is the easiest way to install everything MultiROM needs. Install the app (wait until I compile it) and select MultiROM and recovery on the Install/Update card. If the Status card says Kernel: doesn't have kexec-hardboot patch! in red letters, you have to install also patched kernel - either select one on the Install/Update card or get some 3rd-party kernel here on XDA. You are choosing kernel for your primary ROM, not any of your (future) secondary ROMs, so select the version accordingly.
Press "Install" on the Install/Update card to start the installation.
2.Manual installation
Firstly, there are videos on youtube. If you want, just search for "MultiROM installation" on youtube and watch those, big thanks to all who made them. There is also an awesome article on Linux Journal.
MultiROM has 3 parts you need to install:
MultiROM (multirom-YYYYMMDD-vXX-addison.zip) - download the ZIP file from second post and flash it in recovery.
Modified recovery (MULTIROM-TWRP-3.1.1-Addison-unnoficial.img) - download the IMG file from second post and use fastboot or Flashify app to flash it.
[*]Patched kernel - You can use either one of the stock ones in second post or third-party kernels which include the patch, you can see list in the second post. Download the ZIP file and flash it in recovery.
You current rom will not be erased by the installation.
Download links are in the second post.[/INDENT]
Adding ROMs
1. Android
Go to recovery, select Advanced -> MultiROM -> Add ROM. Select the ROM's zip file and confirm.
Using USB drive
During installation, recovery lets you select install location. Plug in the USB drive, wait a while and press "refresh" so that it shows partitions on the USB drive. You just select the location (extX, NTFS and FAT32 partitions are supported) and proceed with the installation.
If you wanna use other than default FAT32 partition, just format it in PC. If you don't know how/don't know where to find out how, you probably should not try installing MultiROM.
If you are installing to NTFS or FAT32 partition, recovery asks you to set image size for all the partitions - this cannot be easilly changed afterward, so choose carefully. FAT32 is limited to maximum of 4095MB per image - it is limitation of the filesystem, I can do nothing about that.
Installation to USB drives takes a bit longer, because the flash drive is (usually) slower and it needs to create the images, so installation of Ubuntu to 4Gb image on my pretty fast USB drive takes about 20 minutes.
Enumerating USB drive can take a while in MultiROM menu, so when you press the "USB" button in MultiROM, wait a while (max. 30-45s) until it searches the USB drive. It does it by itself, no need to press something, just wait.
Updating/changing ROMs
1. Primary ROM (Internal)
Flash ROM's ZIP file as usual, do factory reset if needed (it won't erase secondary ROMs)
Go to Advanced -> MultiROM in recovery and do Inject curr. boot sector.
2. Secondary Android ROMs
If you want to change the ROM, delete it and add new one. To update ROM, follow these steps:
Go to Advanced -> MultiROM -> List ROMs and select the ROM you want to update.
Select "Flash ZIP" and flash ROM's ZIP file.
Explanation of recovery menus
Main menu
Add ROM - add ROM to boot
List ROMs - list installed ROMs and manage them
Inject boot.img file - When you download for example kernel, which is distributed as whole boot.img (eg. franco kernel), you have to use this option on it, otherwise you would lose MultiROM.
Inject curr. boot sector - Use this option if MultiROM does not show up on boot, for example after kernel installation.
Settings - we'll, settings.
Manage ROM
Rename, delete - I believe these are obvious
Flash ZIP (only Android ROMs) - flash ZIP to the ROM, for example gapps
Add/replace boot.img - replaces boot.img used by this ROM, this is more like developer option.
Re-patch init - this is available only for ubuntu. Use it when ubuntu cannot find root partition, ie. after apt-get upgrade which changed the init script.
Source code
Code:
[HIDE]
<remote name="multirom"
fetch="https://github.com/Tasssadar" />
<project name="multirom-dev/multirom" path="system/extras/multirom" remote="github" revision="master" />
<project name="multirom-dev/Team-Win-Recovery-Project" path="bootable/recovery" remote="github" revision="android-7.1-mrom" />
<project name="multirom-dev/libbootimg" path="system/extras/libbootimg" remote="github" revision="master" />
[/HIDE]
Kernel: https://github.com/Alberto97/android_kernel_motorola_msm8953/commits/twrp-7.1
Device: https://github.com/XPerience-AOSP-Lollipop/android_device_motorola_addison/tree/android-7.1-MROM
XDA:DevDB Information
[Addison]MultiROM v33 [No Kexec Workaround], Tool/Utility for the Moto Z Play
Contributors
TeamMex
Version Information
Status: Stable
Created 2017-05-20
Last Updated 2017-05-20

Reserved
Downloads:
TWRP_Multirom.img
multirom-20170520-v33-UNOFFICIAL-addison.zip
multirom_uninstaller.zip
MultiROMMGR Adapted for Addison

Reserved
FAQ and other notes
Device encryption
Encryption Fully working
SD CARD
Fully working
About security
In order to make multi-booting possible, MultiROM has to sacrifice some security measures. Firstly, on secondary Android ROMs, /system is not mounted read-only. While there are other things preventing malicious software from messing with /system, this might potentially make it easier for such software to attack that system.
What do the ROMs share?
All ROMs are separate, except /sdcard, which is shared between all Android ROMs.
How many ROMs can I have?/Where are the ROMs stored?
You can have as many ROMs as you can fit in your /sdcard. All the ROMs are stored in /sdcard/multirom/roms or on an USB drive. This folder is unaccessible in Android, to prevent mediascanner from scanning it. You can either in recovery, or obtain root and go to /data/media/0/multirom/roms.
Can I have different versions of Android working alongside
Yes. As long as you select "Don't shere kernel" when installing the secondary ROM, the systems are separated.
MultiROM recovery says it's 2.6.3.0. Why isn't it updated to 2.6.3.*highernumber*?
It is, it just shows wrong version.
The menu with all the ROMs won't show up during boot, how to fix it?
Either re-flash the MultiROM zip or go to recovery, Advanced -> MultiROM -> Inject curr. boot sector.
The reason for this is that something rewrote your boot.img, which happens for example when you flash a kernel. MultiROM's boot menu is part of the boot image, so it has to be added into it again.
Will you port MultiROM to device X?
No, probably. I won't port MultiROM to any device I don't own, because it is very difficult to provide the level of support I want to provide if I can't test things myself, as proven by the Nexus 4 port. I'd like to support more devices, but it is also very satisfying to work on code for device I don't have - I invested hours upon hours of time for free into it, and then I can't even see it running on the device, so...why..bother..?
I'll probably keep buying Nexus devices and keep porting MultiROM to those myself, but I can't buy every single device - I'm still a student, all my existing devices were bought using some kind of money grant or donations from users.
But, you can port it yourself, the wiki should give you at least some idea how to do that:
https://github.com/Tasssadar/multirom/wiki/Porting-MultiROM

CREDITS:
 @nkk71 (For kexec workaround) 
 @Tasssadar for MultiROM 
 @Alberto97 For TWRP kernel and Encrypt fixes taked from his TWRP repo.
Screenshots

Try to test but, mod twrp stuck on initial logo ( flashed via , twrp , flashify and fastboot )
Download it three time.
Please you can upload to another host?
Thanks sorry for my bad English.
Inviato dal mio XT1635-02 utilizzando Tapatalk

lol nice job @TeamMex ! u got it fully working? i only have a touch issue on rom boot selector screen....
i've used mr-dev repos
ok it doesn't boot here neither (im unencrypted dunno if its related) ; couldn't grab a log, terminal throws me a "/sbin/sh: exec: line 1: logcat: not found"
here a booting 3.1.0 mr_twrp for those having issues https://www.androidfilehost.com/?fid=745425885120733531
but this one doesn't have encryption

Alx31 said:
lol nice job @TeamMex ! u got it fully working? i only have a touch issue on rom boot selector screen..
i've used mr-dev repos
ok it doesn't boot here neither (im unencrypted dunno if its related) ; couldn't grab a log, terminal throws me a "/sbin/sh: exec: line 1: logcat: not found"
here a booting 3.1.0 mr_twrp for those having issues https://www.androidfilehost.com/?fid=745425885120733531
but this one doesn't have encryption
Click to expand...
Click to collapse
For me it's working fine
Sent from my Moto Z Play using XDA Labs

TeamMex said:
For me it's working fine
Sent from my Moto Z Play using XDA Labs
Click to expand...
Click to collapse
I mean is a upload problem..try to change host
Inviato dal mio XT1635-02 utilizzando Tapatalk

I'm getting, "Failed to create system.img" error for both SD card and internal storage.

Great work!
Waiting for Android O for the device.?
Can you tell if development of Android O for the device(Z Play) is started or not?
Thanks!

VR25 said:
I'm getting, "Failed to create system.img" error for both SD card and internal storage.
Click to expand...
Click to collapse
Me as well

Mrawesome13 said:
Me as well
Click to expand...
Click to collapse
Try to decrypt your device.
I forgot to add these info.
It work on encrypted but work better on decrypted devices.
.

TeamMex said:
Try to decrypt your device.
I forgot to add these info.
It work on encrypted but work better on decrypted devices.
.
Click to expand...
Click to collapse
I've decrypted my data, now recovery gets stuck at the splash screen. The standard TWRP works though. Tried MULTIROM TWRP 3 times -- Auto installation from the MultiROM app and manual from flashify & standard TWRP. I forgot to get a log. Will do it if I have time to try that again.

I'm sorry but from the past messages I couldn't understand if this version of MultiROM works with an encrypted OS (as primary or secondary ROM) or not.
If I have understood correctly the original MultiROM from tassadar supports encryption on nexus devices since many years. Is the same valid for this version for the Moto Z play as well?
Could anyone maybe clarify that?
Thanks!

Hey, i did that. But it isnt working.. still same message

Anybody who can confirm that MultiROM v33 is working on moto z play under 7.1.1 stock rom with stock kernel?
Thanks!

wokawoka said:
I'm sorry but from the past messages I couldn't understand if this version of MultiROM works with an encrypted OS (as primary or secondary ROM) or not.
If I have understood correctly the original MultiROM from tassadar supports encryption on nexus devices since many years. Is the same valid for this version for the Moto Z play as well?
Could anyone maybe clarify that?
Thanks!
Click to expand...
Click to collapse
yes but him was reverted the encription support.
I will try to update multirom in some day's.

Thank you for your reply @TeamMex!
I'm actually using in this right moment your TWRP 3.1.1 multirom and these are my findings:
- I don't know why but TWRP is no more asking me the decryption password at boot (at the beginning for the first boots it was regularly asking me the encryption PIN), but after having booted it can read and write the internal storage without the password.
That means that the password is cached somewhere. I personally find this behaviour very risky and it basically defeat the purpouse of having encrypted the phone (see also https://github.com/TeamWin/Team-Win-Recovery-Project/issues/202#issuecomment-342540553 )
- TWRP doesn't boot if my 64GB SDXC is inserted in the phone (formatted on the computer as exFAT or even forced to FAT32, formatted on the phone as external storage, no difference)
- it looks like I can't install any secondary rom. If I try to install a secondary rom on the internal storage I get an error when it tries to create the system.img file (E:Failed to create system.img), if I try to install the secondary rom on a small 16GB sd card it just fails while creating the cache.img file without outputting any error.
I'm running a rooted stock moto z play 7.1.1 rom as my primary rom and I've installed MultiROMMGR and reinstalled TWRP from there as well.
Do you by chance have any suggestion about these issues?
Any new version that corrects bugs is of course very welcome. Thank you very much again for your work!

wokawoka said:
Thank you for your reply @TeamMex!
- I don't know why but TWRP is no more asking me the decryption password at boot (at the beginning for the first boots it was regularly asking me the encryption PIN), but after having booted it can read and write the internal storage without the password.
That means that the password is cached somewhere. I personally find this behaviour very risky and it basically defeat the purpouse of having encrypted the phone (see also https://github.com/TeamWin/Team-Win-Recovery-Project/issues/202#issuecomment-342540553 )
- TWRP doesn't boot if my 64GB SDXC is inserted in the phone (formatted on the computer as exFAT or even forced to FAT32, formatted on the phone as external storage, no difference)
- it looks like I can't install any secondary rom. If I try to install a secondary rom on the internal storage I get an error when it tries to create the system.img file (E:Failed to create system.img), if I try to install the secondary rom on a small 16GB sd card it just fails while creating the cache.img file without outputting any error.
Click to expand...
Click to collapse
- Alright, so I was able to resolve the encryption password problem, as iit was my fault and not twrp multirom's: I just had to change again the security settings of the phone to enable the ask for pin code on boot.
- I circumvented the 64GB SDXC problem by using a 32GB SD card (still, it would be great to use a bigger sd card)
- Unfortunately, I'm still not able to use the multirom function: I'm running a moto z play stock 7.1.1 encrypted and rooted system, and as no alternative kernels exits for 7.1.1 at the moment. Is there a possibility in this conditions to get multirom working? I still receive the "E:Failed to create system.img" error when I try to install a secondary rom.
I'm not sure, but it feels like this moto z play multirom port is not actively mantained, which is a real pity because the phone is great and has all the characteristics to be the center of an active community of enthusiasts (in the same way some nexus or Samsung phones do) since it has quite unique features like good specs and an incredible battery life, the mod expandibility and an hardware qwerty keyboard that is going to be released very soon, and it also recently became very affordable.
Having a working multirom would help immensely and push the development of custom roms and alternative OSs (like for example sailfish https://talk.maemo.org/showthread.php?p=1538755#post1538755 ).
I would try to help or to take care of it myself but unfortunately I don't have the specific skills needed. I would be eventually up to give my contribution with some money (actually I'm thinking about creating a bountysource for it).
Is there by chance someone else that could bring on the port and release a stable working version?
If not, do you guys think that the it would be possible to adapt the twrp multirom released for the Moto Z (non-play version): https://forum.xda-developers.com/moto-z/development/mod-multirom-v33b-moto-z-t3513868 ? I can imagine that they have to be very similar.
Thanks again

any update on this?

Database Info

welcome