Hi all,
On the forums I found a zip which lets you flash a kernel with which I can overclock my device. But what when I want to flash my old kernel back. I could go make a backup and restore that one. But say I use this overlock-kernel for a month, next I don't want to use it anymore and I want to go back to my CM9 ICS 4.0.3's original kernel again. Then I don't want to lose all my apps and other data by flashing the CM9 ROM again or restoring a backup, see?
Titanium backup has not proven to be the best backup system there is, you allways lose apps after restoring and so. So my question is, can you make an .img of your current kernel or anything like that?
Furthermore, the CM9 zip contains two maps and a file:
- system
- META-INF
- boot.img
Is it just a matter of putting one of those in a zip and flash that to your device.
Clearly I do not understand how to backup your kernel and flash it back later. Please advise me on this!
Boot partition contains compressed kernel image (zImage) and ramdisk so yes, you can backup only kernel, 4EXT Recovery Touch allows to backup and restore selected partitions.
My GT7+ has the LB2 firmware. I have not seen any copy of this firmware for downloading. Therefore I have been cautious and stick with the stock kernel and FW.
I installed garyd9's CWM and made nandroid backup. I want to try garyd9's custom kernel, but I read the warning on his post about compatibility with some firmwares.
I wonder if I flash his custom kernel and it fails, can I revert back to my stock kernel through nandroid restore?
Thanks.
Nandroid backup is a complete backup of your phone. When we say complete, it means everything on your phone – your apps, data, your current ROM and even the kernel. It is like creating a full system image of your phone that can be restored later, when required. - Restore from a Nandroid Backup via Recovery:
1. The first two steps are same as above. Boot into Recovery and navigate to the Nandroid screen.
2. Select ‘Restore’ to start the process. If you choose the ‘Advanced Restore’ option, you can select which component of the backup to restore – like the boot, system, data or cache. 3. Reboot system. Your system is now restored and is exactly same as the time when the backup was taken.-- Backup and Restore Using ROM Manager:
If you think the above process was easy, backup and restore through ROM Manager is even easier. ROM Manager automates the whole of the above process giving you the option to do these operations with a single touch. Just choose ‘Backup Current ROM’, enter a name for the backup and the phone reboots to start the backup process. There, your backup is complete. To restore, launch the app and select ‘Manage and Restore Backups’. Select the backup that you want restored and ROM Manager will do the rest.
You can delete or rename the backups as well.
Thanks for the reply. Now I feel more comfortable and adventurous.
BTW, I see that there is no copy of the official Samsung LB2 firmware floating around. I do not know how to make a tar file for the firmware / ROM, but would anyone be interested in a nandroid copy of the LB2? I can reset the tablet, go to CWM to save a nandroid copy of the default firmware, then restore my own running copy.
Hello, I have recently been able to install and make a backup of my SGH-I727 using CWM. I have also purchased Titanium backup and made application backups.
I have a few specific questions that I have not been able to find an answer to :
1) Will a CWM backup contain all the apps that are on the phone as well? Meaning, if I restore with a backup image I made, will the
unit be exactly as it was before the backup (i.e. home pages, apps, etc)?
2) If the answer to #1 is YES, then what is the use of Titanium backup/restore?
3) I saw on a YOUTUBE video a user "teaching" how to use CWM, before the RESTORE, he formatted the /cache, /data and /system partitions, then did the RESTORE. Is this needed? required? recommended? best practice?
4) I have gb 2.3.5 on the device now and it works fantastic. I would like to try ICS but before I go there, I want to make sure I have a way to get back to what I have now. Is a CWM backup all I need?
5) Will installing a stock Kernel (ICS AT&T in my case) get rid of CWM Recovery? Or will it be there when I want to go back to the backed up version?
6) Lastly, and maybe this one should not be in this thread but lets try : I am learning about Android, and I see references to the "modem/radio" files for each device. Will a CWM backup also backup the radio/modem code in case the ICS install does not go as planned?
Thank you!!
I think you need to do more reading. Many of these questions have been answered.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
1. Yes a cwm or twrp b/u will put all your apps back just like you never left.!
2. You use titanium when you flash a new rom because of course the new rom won't contain your apps.
3. I've done lots and lots of restores and never wiped first....but wouldn't hurt i guess.
4.yup.!
5.no the recovery remains untouched.
6.I don't think the radio gets backed up or restored. But it's not critical to the rom operation and can be reflashed when ever..
calderonr said:
Hello, I have recently been able to install and make a backup of my SGH-I727 using CWM. I have also purchased Titanium backup and made application backups.
I have a few specific questions that I have not been able to find an answer to :
1) Will a CWM backup contain all the apps that are on the phone as well? Meaning, if I restore with a backup image I made, will the
unit be exactly as it was before the backup (i.e. home pages, apps, etc)?
2) If the answer to #1 is YES, then what is the use of Titanium backup/restore?
3) I saw on a YOUTUBE video a user "teaching" how to use CWM, before the RESTORE, he formatted the /cache, /data and /system partitions, then did the RESTORE. Is this needed? required? recommended? best practice?
4) I have gb 2.3.5 on the device now and it works fantastic. I would like to try ICS but before I go there, I want to make sure I have a way to get back to what I have now. Is a CWM backup all I need?
5) Will installing a stock Kernel (ICS AT&T in my case) get rid of CWM Recovery? Or will it be there when I want to go back to the backed up version?
6) Lastly, and maybe this one should not be in this thread but lets try : I am learning about Android, and I see references to the "modem/radio" files for each device. Will a CWM backup also backup the radio/modem code in case the ICS install does not go as planned?
Thank you!!
Click to expand...
Click to collapse
1. 99.9% back to what you had
2. if you install a new rom you can use titu to restore your apps and settings, 99.9% of apps should work, but some people like reinstalling thier apps fresh and not from backups
3. i wipe b4 i reinstall from backup, but dont wipe/format your sdcards, thats where all the backups of cwm and titu are, good practice is to backup your sdcards onto your computer, that reminds me, i need todo that
4. yes except for the radio
5. if you mean stock firmware , then yes custom recovery gone, you will get everything back to stock - recovery, kernel, rom, radio. if you mean just the kernel then no
6. no cwm/twrp do not backup or wipe the radio , you will still have what you had b4, but the ics stock firmware install you will get another radio and should be fine, worry about flashing the firmware correctly(do the wipes), radio is easy to flash/reflash with custom recovery(cwm/twrp)
vincom said:
1. 99.9% back to what you had
2. if you install a new rom you can use titu to restore your apps and settings, 99.9% of apps should work, but some people like reinstalling thier apps fresh and not from backups
3. i wipe b4 i reinstall from backup, but dont wipe/format your sdcards, thats where all the backups of cwm and titu are, good practice is to backup your sdcards onto your computer, that reminds me, i need todo that
4. yes except for the radio
5. if you mean stock firmware , then yes custom recovery gone, you will get everything back to stock - recovery, kernel, rom, radio. if you mean just the kernel then no
6. no cwm/twrp do not backup or wipe the radio , you will still have what you had b4, but the ics stock firmware install you will get another radio and should be fine, worry about flashing the firmware correctly(do the wipes), radio is easy to flash/reflash with custom recovery(cwm/twrp)
Click to expand...
Click to collapse
Hi Vincom and all,
Thanks for the responses....Very useful and I think I am putting all the dots together now. Before I ask this let me say that I am a computer programmer as well but for IBM mainframe systems, so I am a technical person but the distributed computing world (Windows/Unix/Linux, etc) is not that familiar to me, therefore these follow up questions.
I am trying to understand the difference between FIRMWARE, and ROMS and Kernels.
1A) I gather firmware is the software that drives the hardware like device drivers..correct?
2A) I also gather that the Kernel is the version of the operating system. Correct?
3A) ROM is the one that is stomping me a bit...is that the UI version? Like Gnome in Linux?
When I look at my S2, in About Phone I see the following :
Baseband Version - I727UCKJ2
Kernel Version - 2.6.35.11
Build Number GINGERBREAD.UCKJ2
4A) Lastly, when I do a CWM backup, what am I backing up? The ROM and the Kernel? Does it also back up the firmware?
Anyway thanks to all for your input and help!...I love my Android device!
Hello there, To answer a few of your questions.
1.A. Typically Firmware is a patch or software update/version that affects what the hardware is supposed to do..Google definition-Permanent software programmed into a read-only memory.
2.A. Kernel - pretty good explanation of it...
3.A. Google definition - The Android ROM is the Android operating system. This is the User interface (Sense UI in HTC phones) and the file system for maintaining contacts etc. It is composed of a Linux kernel and various add-ons to achieve specific functionality.- I would define it as a user-developed version of android if we are talking about custom ROMs.
4.A. Yes when you back up it backs up everything except the radio.
To further explain why people might use TIBU and CWM/TWRP is because most people make a full nandroid (cwm backup) for safety / oops moments or just to try out a different rom. TIBU is usually used when users go from rom to rom and dont want to mess with playstore taking its sweet time to reinstall. (only restore app/app data. NEVER RESTORE SYS DATA unless on the same version of android. the sys files are always different rom to rom or version to version)
Baseband is the Radio, Just fyi there are several different versions of radios for our phone but they are typicall Version specific. ie: gb radios wouldnt work on JB
Not as a troll or flame but I am just curious why you are still using GB? My advice is just to install cm10 + gapps and look up installing cyandelta from the playstore.
I offer that as a suggestion because it will update your phone autonomously. also review the forums for which radios are best for cm (I'm still using uclf6 even though there are newer versions)
So tasker can make nandroid backups.
Im wondering if its possible to:
1: make a nandroid backup upon reboot or shutdown with tasker (I know this is possible). such that if you have 2 different roms, 1 backup will be of one rom (say cyanogenmod) and another backup for say a stock rom. Naming them appropriately (i.e. Backup1, Backup2)
2: make a task on stock rom that restores a nandroid backup of backup1 (cyanogenmod) and a task in cyanogenmod that restores a nandroid backup2 (stock rom).
that way you can toggle between the two roms easily and their backups will always be updated.
Then if you have an HTC One or a Galaxy S4 (or any device for that matter) you can toggle between stock rom and AOSP rom.
Can anyone guide me to making this happen?
Hii
Is somebody know how to add Stock Rom as secondary
i want to try making one ROM as a stable full performance and
one 100% of battery saving based on CM and Elemantal X kernel
there is a option to create a nandroid backup and then add it to the multirom
but im not sure how do i do nandroid backup
( I tried normal TWRP backup and it did not worked just stuck with bootloop )
*the 2 androids is 6.0.1
I know how to make nandroid backup but I couldn't get this mod working actually I steel don't know why but I'm not interested in it anymore
mtsimmer said:
Hii
Is somebody know how to add Stock Rom as secondary
i want to try making one ROM as a stable full performance and
one 100% of battery saving based on CM and Elemantal X kernel
there is a option to create a nandroid backup and then add it to the multirom
but im not sure how do i do nandroid backup
( I tried normal TWRP backup and it did not worked just stuck with bootloop )
*the 2 androids is 6.0.1
Click to expand...
Click to collapse
backup the thru latest TWrp and in install multirom manager recovery and then go to multirom manager and add zip and then select backup option then select ur backup rom!