I recently had to warranty replace my S3 because of epic GPS issues. Upon receiving the new device I rooted, unlocked, custom recovery.
Restored nand from old phone no problems. Will Nandroids also 'flash' kernals? The phone info shows lean kernal that I flashed on my old my old phone, however I have not yet done that on the new. Thoughts?
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fatasian said:
I recently had to warranty replace my S3 because of epic GPS issues. Upon receiving the new device I rooted, unlocked, custom recovery.
Restored nand from old phone no problems. Will Nandroids also 'flash' kernals? The phone info shows lean kernal that I flashed on my old my old phone, however I have not yet done that on the new. Thoughts?
Sent from my SCH-I535 using xda app-developers app
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Yes. Nandroid backups will alo backup the current kernel.
so since you made the nandroid with lean kernel, that is what is backed up.
andybones said:
Yes. Nandroid backups will alo backup the current kernel.
so since you made the nandroid with lean kernel, that is what is backed up.[/COLOR][/B]
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Thanks, I assumed moving to a new device you would need to flash a kernel.
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Related
Just want to make sure if the nandroid backup & restore is really working on Sensation with latest CWM since I have made a bunch of backups and I am heavily messing around with the phone for the past 48 hours lol... Just to be sure this backups are going to actually work in case I screw the phone...
Sent from my rooted HTC Sensation 3.5G using XDA Premium App.
Yes.... Works great.
Sent from my HTC Sensation Z710e using XDA App
Do remember that clockwork /nandroid restore will not restore the kernel. If you flashed a rom that's using a custom kernel, you will need to flash the stock kernel before trying to restore your backup or you will get stuck in a boot-loop.
Thank you both! Just wanted to confirm!
Sent from my rooted HTC Sensation 3.5G using XDA Premium App.
how do i flash back to the original kernel?
Question. What was the total file size of the Backup (stock ROM)?
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stanleynhan said:
how do i flash back to the original kernel?
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Yes, I'd love to know this along with how to get a copy of the original kernel....or is the kernel in the .zip files on the regional oem rom thread?
not working for me
You can find the stock kernel in the second post in the Android Revolution HD thread over in the development section.
Paging Dr B said:
You can find the stock kernel in the second post in the Android Revolution HD thread over in the development section.
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Nice find... Will keep a backup just in case... Thank you!
Sent from my HTC Inspire 3.5G using XDA Premium App with CM7.
Paging Dr B said:
Do remember that clockwork /nandroid restore will not restore the kernel. If you flashed a rom that's using a custom kernel, you will need to flash the stock kernel before trying to restore your backup or you will get stuck in a boot-loop.
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isnt the boot.img the kernel and init stuff? i was under the assumption it was backed up when you do a nandroid on most devices (like HTC). the RFS file system samsung uses on their devices prevented us from backing up and restoring a boot.img file so we have to always have a kernel in case of the good ol boot loop
so to go back to stock kernel, i install it to the sd card then flash it in recovery right?
stanleynhan said:
so to go back to stock kernel, i install it to the sd card then flash it in recovery right?
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Yeap... That's how you flash a kernel, but not needed if what you want to do is restore from a nandroid backup... To restore just select the nandroid backup you want to restore. No need to flash any kernel prior restoring from nandroid.
Sent from my rooted HTC Sensation 3.5G using XDA Premium App.
since when do you have to reflash a stock kernel in order to flash your backup? I have tried every rom out here for the sensation didn't like any of them and reflashed my backup of stock with no issues....
Paging Dr B said:
Do remember that clockwork /nandroid restore will not restore the kernel. If you flashed a rom that's using a custom kernel, you will need to flash the stock kernel before trying to restore your backup or you will get stuck in a boot-loop.
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This is not true. Nandroid contains the kernel image.
You would only have to flash a different kernel AFTER you restore, if you don't want to use the one that you backed up.
To the point, nandroid restore works perfect with 4.0.1.5 CWM. I confirm.
Getting mixed signals here guys. Does nandroid backup / restore the kernel?
jir591 said:
Getting mixed signals here guys. Does nandroid backup / restore the kernel?
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Yes... Restore everything exactly when you back it up... Kernel and everything exactly.
Sent from my HTC Inspire 3.5G using XDA Premium App with CM7.
Nandroid is just the CWM backup? Or am I missing something?
Arsenal23 said:
Nandroid is just the CWM backup? Or am I missing something?
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Yes... Is called nandroid...
Sent from my rooted HTC Sensation 3.5G using XDA Premium App.
I decided to try out the cornerstone aosp so I made a nandroid backup, did the usual stuff and tried it out. Once I was done messing around, I wanted to restore my nandroid but after I do it doesn't boot. Nothing I try works so I end up wiping everything and installing fresh. Second time its happened where restoring wouldn't work. Anyone else have this issue? Also could u take that backup and put it as a zip file, place it on ur SD card and flash it through recovery? Would probably get the same result though
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its not an issue nandroid does not restore your kernel. You need to restore your nanadroid then reflash the rom that you were using when you took the nandroid
mrevankyle said:
its not an issue nandroid does not restore your kernel. You need to restore your nanadroid then reflash the rom that you were using when you took the nandroid
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So I need to just restore then flash the rom that the restore was based off of? Thats easy enough. But I thought there was only one kernal across ics for the tf101 atm
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asop and asus based slightly different not sure if its the kernel though so there are some issues there
mrevankyle said:
asop and asus based slightly different not sure if its the kernel though so there are some issues there
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Ah alright. Well I'll give that a shot maybe tomorrow, thanks
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I was running a ROM versed on ulcb3 and using the entropy DD kernel. I just restored a nandroid backup to an L2 based ROM that was packaged with infusion-GB A2. I wiped prior to restore in cwm.
My settings now tells me I'm using the b3 baseband, and I can't tell what kernel I'm on. does a nandroid backup restore the modern and the kernel? I'm guessing kernel yes, modem no. Can anyone confirm?
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You have to flash the kernel you were using with the backup. I wipe data, flash the kernel that is supposed to be with my restore then ill do my nandroid restore. You then have to flash the modem that you want. Doing restores on the infuse is a little tricky at first.
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On a similar note.... when switching between roms that are both nandroided, full wipe, cache, and dalvic are still necessary? I figured a nandroid restore would rebuild the whole phone to the snapshot that was taken at the time of backup......
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chipstien said:
On a similar note.... when switching between roms that are both nandroided, full wipe, cache, and dalvic are still necessary? I figured a nandroid restore would rebuild the whole phone to the snapshot that was taken at the time of backup......
Sent from my SAMSUNG-SGH-I997 using XDA
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I do a full wipe. It only takes 20 seconds extra.
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Ya for some odd reason when i attempt to use the nandroid back up & restore future i get bootloops on the samsung screen upon restoring, i don't get it. On my HTC i can do it without any problems. Do i have to flash the appropriate kernel for the ROM when i want to revert to it?
slicingtaco said:
Ya for some odd reason when i attempt to use the nandroid back up & restore future i get bootloops on the samsung screen upon restoring, i don't get it. On my HTC i can do it without any problems. Do i have to flash the appropriate kernel for the ROM when i want to revert to it?
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Never had luck with the nan backup...I use Zen tool kit for the infuse...to do a full back up...works great...
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slicingtaco said:
Ya for some odd reason when i attempt to use the nandroid back up & restore future i get bootloops on the samsung screen upon restoring, i don't get it. On my HTC i can do it without any problems. Do i have to flash the appropriate kernel for the ROM when i want to revert to it?
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When restoring a nandroid, you should only restore the data in the advanced restore option. Make sure to do wipes prior to flashing a new ROM.
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Puzzling. Rooted, installed bean rom. Then nandroid backup. Next installed cm10 and nandroid backup. To backup imei, restore to stock nandroid and backed up. When nandroid back to cm10, the kexec reboots 3 times as usual and everything works perfect hut the unlock icon under the Samsung logo at boot has disappeared. Still rooted. Any idea why?
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loveubuntu said:
Puzzling. Rooted, installed bean rom. Then nandroid backup. Next installed cm10 and nandroid backup. To backup imei, restore to stock nandroid and backed up. When nandroid back to cm10, the kexec reboots 3 times as usual and everything works perfect hut the unlock icon under the Samsung logo at boot has disappeared. Still rooted. Any idea why?
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the is something very strange going on with that custom unlock screen! My device had that from first boot...so have a few others.
loveubuntu said:
Puzzling. Rooted, installed bean rom. Then nandroid backup. Next installed cm10 and nandroid backup. To backup imei, restore to stock nandroid and backed up. When nandroid back to cm10, the kexec reboots 3 times as usual and everything works perfect hut the unlock icon under the Samsung logo at boot has disappeared. Still rooted. Any idea why?
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This is why I'm staying away from cm10.
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FreeRefreshments said:
This is why I'm staying away from cm10.
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This has absolutely nothing to do with CM10.
This behavior has been documented on even unrooted stock ROMs.
It happens intermittently with my rooted stock setup too.
I bet you that it's due to the kexec exploit confusing Samsung systems in whether or not it has been unlocked.
It's good to know others are seeing it too. I could care less since cm10 is working beautifully for me. dhacker ftw
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I'm having issues backing up my Verizon S3. It is rooted with an unlocked bootloader (not sure if that helps), and I'm just trying to backup the stock ROM. I am seeing that the backups I create are only 22 MB in size (clearly not right). I've tried making the backups through ROM Manager as well as CWM, with the same results. There's no failure in making the backup, but when I go to restore it, I'm getting the message "error while restoring /system". When I boot my phone after this, it gets stuck on the Samsung screen. Anyone know what I'm doing wrong with the backups? Really trying to avoid having to use Odin to put the phone back to stock. Thanks!
Thats because the latest cwm uses a blobs folder to store most of the backup. This process allows back up and restore to complete much faster.
Interesting...so how do I get the data from these files to restore?
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it should restore like you did it normally...i missed part of your post about failing to restore. Which version of cwm are you using? 6.0.1 is recomended and works for everthing currently flashable on our device.
Oh duh...I'm trying to restore to a different device. I need to copy over the blob folder too...that's where I screwed up. Thanks!
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bobmundo said:
Oh duh...I'm trying to restore to a different device. I need to copy over the blob folder too...that's where I screwed up. Thanks!
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Yea thats an important detail left out lol...glad you figured it out!