[APP][Official]Dual Boot Patcher for Samsung Galaxy J2 (J23G-SPRD) - Android Apps and Games

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Code:
/*
* I'm not responsible for bricked devices, dead SD cards, thermonuclear war.
* Please do some research if you have any concerns about features included in the products you find here 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.
* Your warranty will be void if you tamper with any part of your device / software.
* Same statement for XDA.
*/
About Dual Boot Patcher
Dual Boot Patcher will allow any number of ROMs to be installed at the same time. It works by patching the secondary ROM's installation scripts and boot image to load the ROM files from an alternate location (/system/multiboot, /cache/multiboot, and /data/multiboot). Because of the way this is implemented, no changes to the primary ROM are necessary. Huge thanks to @chenxiaolong for his wonderful app.
This app 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
How to use the patcher
Download the patcher apk and run it. Tap "Patch Zip File" from the navigation drawer and choose the file you want to patch.
Instructions for dual booting
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.
Extsd-slots: There can be an unlimited number of extsd slots. These install to the external SD card, which is useful as it keeps the ROMs off of the internal storage. Note that the ROM's data files are still stored on the data partition.
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.
NOTE:
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
If you want to dualboot a TouchWiz ROM, I highly recommend installing TouchWiz as the primary ROM. Otherwise, any mods will need to be patched before flashing.
How do I.. blah blah..?
Switch the ROM from custom recovery 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
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
Unofficial App/Apk : https://drive.google.com/open?id=0B7BTXFMgzL4rRXNBZUhaWl9PdWs
Unofficial DualBootUtilities : https://drive.google.com/open?id=0B7BTXFMgzL4rckFVZllCUV9DZ2s
Official Downloads : https://dbp.noobdev.io/downloads/
XDA:DevDB Information
Official Dual Boot Patcher for SM-J200H/DD
Contributors
Parthib, Lzzy12, samankh
Source Code: https://github.com/Parthib24/DualBootPatcher_downgrade
Version Information
Status: Testing
Main/Official Source code
DualBootPatcher: https://github.com/chenxiaolong/DualBootPatcher
Build instructions: https://github.com/chenxiaolong/DualBootPatcher/tree/master/docs
Created 2017-08-21
Last Updated 2017-08-21

Reserved
Now Its Official.!

Related

[ROM] Vanir

FEATURES
Based on Vanir by mkaluza.
Installation script edited in order to avoid any type of error.
Gapps included.
Most of system apps removed.
Ringtones removed.
Stagefright 2.0 vulnerability fixed.
Screen tearing fixed.
Gesture typing fixed.
Android Marshmallow boot animation.
SCREENSHOT
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FILES
Vanir.zip (MD5: b2a8128d88b0a1464967dc83e1de2b63)
update.zip (MD5: 46462d594027bc82e0a18025c7916e0c)
I9070P.zip (MD5: 61dab6926ba5680fc0087d4e2d62921e)
WARNING
Not compatible with Gingerbread.
INSTALLATION WITH CUSTOM RECOVERY
Do a factory reset.
Install Vanir.zip.
If you have an I9070P, install I9070P.zip.
INSTALLATION WITH SAMSUNG RECOVERY
Download Vanir.zip and update.zip.
If you have an I9070P, download I9070P.zip.
The files must be placed on microSD.
Boot your phone to recovery.
apply update from external storage
update.zip
wipe data/factory reset
Yes -- delete all user data
install zip from sdcard
choose zip from sdcard
Vanir.zip
Yes - Install Vanir.zip
If you have an I9070P, continue with:
choose zip from sdcard
I9070P.zip
Yes - Install I9070P.zip
Touch the Back soft key.
reboot system now
CREDITS
Modded by Gargaros: http://www.androidiani.com/forum/mo...9070-p-kk-4-4-4-vanir-gargaros-s-advance.html
Nice!!!
Do I need to root before installation?
Yes, root is needed.
What recovery is in update.zip?
EDIT: It contains CWM v.6.0.2.8
Armando84 said:
Do I need to root before installation?
Click to expand...
Click to collapse
Root is not needed. Just follow the installation's steps, this rom is the easiest to install!
You were right, no need for root, installation was a breeze. Thanks for sharing this rom, it's very fast!:good: Another question: can you recommend me a good music player app?
https://play.google.com/store/apps/details?id=com.kabouzeid.gramophone
Finallu I van considee janice is not dead there are some legendery people who are still keeping it alive .Big thanks to the devloper
Sorry for my bad english:-[
True, they are legends and thanks to them our phone still works decently.
While we wait for Epirex's CyanogenMod 13, I'm more then happy with this rom.
Cassiusss said:
FEATURES
Based off CyanogenMod 11 by Team Canjica.
Most of system apps removed (you can find better alternatives on Play Store).
Stagefright vulnerability fixed.
SystemUpdateService wakelock fixed.
Call recording enabled for all regions.
Nova Launcher as default launcher.
MK Kernel included.
Gapps included.
Android Marshmallow boot animation.
FILES
CM11.zip (MD5: 8ecb0a1f34684c11d085702c1e2583e8)
teeI9070P.zip (MD5: 0ec6f4681d13362f026d317a66ac96db)
update.zip (MD5: 46462d594027bc82e0a18025c7916e0c)
WARNING
Not compatible with Gingerbread.
INSTALLATION WITH CUSTOM RECOVERY
Do a factory reset.
Install CM11.zip.
If you have an I9070P, install teeI9070P.zip.
INSTALLATION WITH SAMSUNG RECOVERY
Download CM11.zip and update.zip.
If you have an I9070P, download teeI9070P.zip.
The files must be placed on microSD.
Boot your phone to recovery.
apply update from external storage
update.zip
wipe data/factory reset
Yes -- delete all user data
install zip from sdcard
choose zip from sdcard
CM11.zip
Yes - Install CM11.zip
If you have an I9070P, continue with:
choose zip from sdcard
teeI9070P.zip
Yes - Install teeI9070P.zip
Touch the Back soft key.
reboot system now
CREDITS
Full credits to Team Canjica, mkaluza and Shaaan.
Modded by Gargaros.
Click to expand...
Click to collapse
Send me some screenshots
This rom looks like any other CyanogenMod 11: the modder hasn't made aesthetic changes (except boot animation). But if you still want to see something in particular then let me know and I'll provide you screenshots.
Cassiusss said:
This rom looks like any other CyanogenMod 11: the modder hasn't made aesthetic changes (except boot animation). But if you still want to see something in particular then let me know and I'll provide you screenshots.
Click to expand...
Click to collapse
I want some screenshots
Well... since you don't have any particular request, here some random screenshots:
http://imgur.com/I4e2A9V
http://imgur.com/O9t4yZV
http://imgur.com/UWppK0b
May I know default recovery that is embedded in Rom Mods above? Is that still the CWM or the latest vers of TWRP? Thanks In Advnc.
Still the CWM.
Cassiusss said:
store/apps/details?id=com.kodarkooperativet.blackplayerfree
Click to expand...
Click to collapse
Great one, thank you so much!:highfive:
how much is the RAM with this one ?
Ram usage at the bottom of the screenshot:
Hi, my friend. Is this ROM compatible with f2fs? Thanks in advance
Sent from my GT-I9070 using XDA Free mobile app

[RECOVERY] Carliv Touch Recovery v5.7 for Bmobile AX810

Code:
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired. Please
* do some research if you have any concerns about features included in this Recovery
* 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.
*/
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Carliv Touch Recovery 5.7​
This is a CWM based recovery and I did put up some work to update it to lollipop (cm 12.1) and marshmallow (cm-13) after official cwm development stopped at kitkat. It works with LOLLIPOP and MARSHMALLOW kernels and it builds with cm 12.1 or aicp lp-5.1 (version 5.2) and with cm 13 or aicp mm-6.0 (version 6.1).
This is for those who want a lighter and simpler recovery or they just liked CWM before. It's not as good or complex as twrp, but it will do the job just fine.
For gui I ported PhilZ Recovery full touch module.
Features:
- EXT4 and F2FS if you need it.
- full touch menu ported by me from PhilZ touch Recovery. The old Napstar-xda touch module was good but it's quite old and to update that was too much work. Actually There is a version 4 with that touch module, all working, but the touch doesn't work with some input drivers and I had to give up on it for the new and improved version from PhilZ.
- all cwm functionalities are up and working (adb, sideload, backup, restore, install, mass storage...). There is no mtp and if your phone doesn't have an external sdcard you can't connect it to PC while is in recovery mode. But there is usb-otg support, of course if your phone was shipped with that.
- added new menu for backup and restore advanced, to use it for backing or restoring only a specific partition and I also ported from PhilZ the multizip flashing function.
- in Carliv menu there is now a new section for flashing boot and recovery images. It is a feature that I needed during many recovery builds testing. I wanted an easier way to flash other image without booting to android and using an app like RashR. You can browse your storage locations for any image and after choose you will have to select on wich partition should that be flashed. I added multiple confirmations check to avoid flashing on wrong partition. This feature works only with boot and recovery images. I won't add other partitions to this because for other things there are multiple backup restore functions.
- for MTK phones (if the flag is used in Boardconfig) there is a new menu to backup and restore some important partitions like uboot, nvram an secro because they are involved in restoring a lost IMEI, and also the logo partition which may often get broken by bad ported ROMs.
- besides these all my old specific menus (aroma, rainbow...) are still in place.
- added support for dencrypting and mounting data partition using the builtin minivold from cyanogenmod with vdc commands (the ideea came from this post of Lekensteyn). Tested and working well with text ar hex passwords, and maybe will work with pin too but I don't think it will work with pattern .
- there is no included root solution. I choose to do it this way because there is no universal root solution now and someone may end up messing things with a non-working root option. You can flash a zip installer from Chainfire's SuperSu or other solution that may work for your phone.
Bug:
Touch does not work but you can use hardware keys to navigate
Download:
AndroidFileHost
Credit:
@bluefirebird
AMRDevelopment​
Nice recovey.....
StephenMarikitOng said:
Nice recovey.....
Click to expand...
Click to collapse
I only compiled, you should say thanks to @bluefirebird.
For @bluefirebird, that's more than a thankyou.... Admired him for his great work.... Thanks in a million to @bluefirebird....

[APP][Unofficial]Dual Boot Patcher for Cagabi one & MT6580

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I am proud to present first Dualboot project For Cagabi one. This will allow any number of ROMs to be installed at the same time. It works by patching the secondary ROM's installation scripts and boot image to load the ROM files from an alternate location (like /data/multiboot). Because of the way this is implemented, no changes to the primary ROM are necessary
What is DualBootPatcher?
DualBootPatcher is an open-source app that allows multiple ROMs to be installed on a single Android device. It does its best to work with existing code and does not require explicit support from ROMs. There are currently 200+ supported devices and their variations.
Information:
I have managed to support for Cagabi one and other MT6580 devices to the DualBootPatcher App, I am not the developer, I am just the maintainer.
It's awesome and useful for testing out roms or if you want, switching ROMS.
Disclaimer:
Code:
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.
Requirements:
1. A Custom Recovery (TWRP)
2. A ROM
3. Dual Boot Patcher app from the download section below.
What does the app do ?:
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
What's supported ?
How to use the App?
- Download, install and open the app.
- Swipe to the right to open the menu. Click "ROMS". Now if this is the first time you use it, it will ask you if you want to set kernel. Do so!
- After it has finished go to ROM Settings (primary ROM 3 dot menu) and select Update Ramdisk. It will update it and will ask you to reboot. Press Reboot Now, or Reboot later.
- Now Download any ROM you like and open the app again and open the menu and open Patch Zip File from the menu. Ensure that your Device is set correctly and under Partition configuration select secondary (will install 2nd ROM in /system) or data or external SDCard slot.
- Click continue and select where to save the patched file.
- You should see the file is being put in "Queue". Just click the confirm button to the upper right.
Note: If you want to go back, just swipe the ROM in queue to right and start over.
- The app will patch the zip. When done, go back to "ROMs".
- Click "Flash zip files" (the big pink button on the lower right). Click the pink plus button to add your previously patched zip file.
- Locate the file you have patched in step 7. Unless you have changed the name there, it should be something like ROM_name_partition_config_ID.zip (like LO13-20170807-cagabi-Unofficial_dual.zip).
- Click on that file and choose "Keep location". Now confirm the flash with the button on the upper right side.
Note: You can also install the patched zip files in recovery.
- It will now open the terminal and begin flashing the file. This requires some patience. After it has flashed the file you'll see success message in green.
- Now click back and you should see your newly installed ROM along with the Primary ROM.
Note: You can find more options by clicking on the three buttons on each ROM.
- Now reboot and wait till finishing 2nd ROM first boot. install DualBootPatcher apk so you can easily switch ROMs, there is another way to change ROMs: flash DualBootUtilities.zip and switch ROM manually.
Note: Using Bootui:
- Open app then select settings and press install (update) bootui. then Swipe to the right to open the menu. Click "ROMS" again and open secondary ROM Settings) and select Update Ramdisk, Now you can change ROMs simply using boot ui (something like grub bootloader but it works like twrp)
Partitions Configurations:
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.
Extsd-slots: There can be an unlimited number of extsd slots. These install to the external SD card, which is useful as it keeps the ROMs off of the internal storage. Note that the ROM's data files are still stored on the data partition.
How to boot to another ROM ?
This is simple ... There is no reboot to primary, secondary or whatever. So all you have to do is:
1) Go to ROMs section of the App.
2) Click on the ROM you want to boot to. You should see "Switching ROM" message. After few seconds, you should see a report message saying that "ROM successfully switched".
3) Now just do a normal reboot of your device. See the magic! It should boot to the ROM you have switched on step 2.
Note: You can find more options by selecting the three buttons on each ROMs (like creating reboot widgets for directly rebooting to specific rom).
You also need to install the App to all of the ROMs you install. Otherwise, you want be able to boot to other ROMs!
Apps and Data sharing:
To use app sharing, follow these steps in every ROM that you want to use app sharing: (doesn't work with JB ROMs)
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
Other How to ?
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".
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
Source:
Source
All Releases:
Releases
Downloads:
07-Aug-2017 first release
Credits:
 @chenxiaolong for the awesome DualBootPatcher.
 @RendyAK for inspiration, help and tips 
 @yshalsager I copied his thread because I am too lazy
Enjoy ​

[APP][Unofficial]Dual Boot Patcher for Cagabi one & MT6580

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I am proud to present first Dualboot project For Cagabi one. This will allow any number of ROMs to be installed at the same time. It works by patching the secondary ROM's installation scripts and boot image to load the ROM files from an alternate location (like /data/multiboot). Because of the way this is implemented, no changes to the primary ROM are necessary
What is DualBootPatcher?
DualBootPatcher is an open-source app that allows multiple ROMs to be installed on a single Android device. It does its best to work with existing code and does not require explicit support from ROMs. There are currently 200+ supported devices and their variations.
Information:
I have managed to support for Cagabi one and other MT6580 devices to the DualBootPatcher App, I am not the developer, I am just the maintainer.
It's awesome and useful for testing out roms or if you want, switching ROMS.
Disclaimer:
Code:
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.
Requirements:
1. A Custom Recovery (TWRP)
2. A ROM
3. Dual Boot Patcher app from the download section below.
What does the app do ?:
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
What's supported ?
How to use the App?
- Download, install and open the app.
- Swipe to the right to open the menu. Click "ROMS". Now if this is the first time you use it, it will ask you if you want to set kernel. Do so!
- After it has finished go to ROM Settings (primary ROM 3 dot menu) and select Update Ramdisk. It will update it and will ask you to reboot. Press Reboot Now, or Reboot later.
- Now Download any ROM you like and open the app again and open the menu and open Patch Zip File from the menu. Ensure that your Device is set correctly and under Partition configuration select secondary (will install 2nd ROM in /system) or data or external SDCard slot.
- Click continue and select where to save the patched file.
- You should see the file is being put in "Queue". Just click the confirm button to the upper right.
Note: If you want to go back, just swipe the ROM in queue to right and start over.
- The app will patch the zip. When done, go back to "ROMs".
- Click "Flash zip files" (the big pink button on the lower right). Click the pink plus button to add your previously patched zip file.
- Locate the file you have patched in step 7. Unless you have changed the name there, it should be something like ROM_name_partition_config_ID.zip (like LO13-20170807-cagabi-Unofficial_dual.zip).
- Click on that file and choose "Keep location". Now confirm the flash with the button on the upper right side.
Note: You can also install the patched zip files in recovery.
- It will now open the terminal and begin flashing the file. This requires some patience. After it has flashed the file you'll see success message in green.
- Now click back and you should see your newly installed ROM along with the Primary ROM.
Note: You can find more options by clicking on the three buttons on each ROM.
- Now reboot and wait till finishing 2nd ROM first boot. install DualBootPatcher apk so you can easily switch ROMs, there is another way to change ROMs: flash DualBootUtilities.zip and switch ROM manually.
Note: Using Bootui:
- Open app then select settings and press install (update) bootui. then Swipe to the right to open the menu. Click "ROMS" again and open secondary ROM Settings) and select Update Ramdisk, Now you can change ROMs simply using boot ui (something like grub bootloader but it works like twrp)
Partitions Configurations:
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.
Extsd-slots: There can be an unlimited number of extsd slots. These install to the external SD card, which is useful as it keeps the ROMs off of the internal storage. Note that the ROM's data files are still stored on the data partition.
How to boot to another ROM ?
This is simple ... There is no reboot to primary, secondary or whatever. So all you have to do is:
1) Go to ROMs section of the App.
2) Click on the ROM you want to boot to. You should see "Switching ROM" message. After few seconds, you should see a report message saying that "ROM successfully switched".
3) Now just do a normal reboot of your device. See the magic! It should boot to the ROM you have switched on step 2.
Note: You can find more options by selecting the three buttons on each ROMs (like creating reboot widgets for directly rebooting to specific rom).
You also need to install the App to all of the ROMs you install. Otherwise, you want be able to boot to other ROMs!
Apps and Data sharing:
To use app sharing, follow these steps in every ROM that you want to use app sharing: (doesn't work with JB ROMs)
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
Other How to ?
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".
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
Source:
Source
All Releases:
Releases
Downloads:
07-Aug-2017 first release
Credits:
 @chenxiaolong for the awesome DualBootPatcher.
 @RendyAK for inspiration, help and tips 
 @yshalsager I copied his thread because I am too lazy
Enjoy ​

[RECOVERY] MultiROM v33 yu5040

Introduction
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MultiROM is one-of-a-kind multi-boot mod for Yu yureka black (yu5040). It can boot any Android ROM as well as other systems , once they are ported to that 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 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 USB drive attached via OTG cable
You can also watch a video which shows it in action.​
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.
You can install it using MultiROM Manager app
Note 1: Your device must not be encrypted (hint: if you don't know what it is, then it is not encrypted).
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.​
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.
Thanks a lot to Tasssadar for creating this awesome utility.
Special thanks
@yshalsager
@h2o64
Source Code: github.com/multirom-garlic
Not working properly pls fix it

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