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Problem restoring backup in CWM

When restoring a backup I get
E:format_volume failed to unmount "/system"
Error while formatting /system!
I am running CwM Voodoo Lagfix Recovery v3.0.2.8x
Octaine v2

dashah said:
When restoring a backup I get
E:format_volume failed to unmount "/system"
Error while formatting /system!
I am running CwM Voodoo Lagfix Recovery v3.0.2.8x
Octaine v2
Click to expand...
Click to collapse
Restoring a backup is a know bug with CWM 3. You can try bhundven's KJ6 voodoo kernel, also in the dev section. It comes with CWM 5 which will let you backup and restore properly. Note that any backup created with any other CWM version won't be restored.

do what fb said but if you have apps/texts/contacts that you want to save then restore just the data and then back all of that up through the phone and then flash the kernel
Sent from my SGH-T959V using xda premium

I haven't tried to restore with bhundven's kernel, but, it's still beta and i saw a post about it not CWM working 100% yet, so,
This is what i always do :
1. Make sure you have both your current GB kernel CWM flashable zip and Bali 3.3 Froyo kernel CWM flashable zip on your SDCard.
2. Go to CWM, install from zip, choose zip, choose bali kernel.
3. Once kernel flashed, go to advanced, reboot recovery
(if you accidently reboot system you won't get pass bootloaders cause Bali's a froyo kernel, don't worry go to CWM through volume down+power+plug in)
4. Once back in CWM, perform backup.
5. Reboot recovery.
6. Flash your GB kernel and reboot system.
To restore do the same steps.
It wotks great all the time.
Hope i helped.
Sent from me

Thanks everyone

You can spare step no.5...
Sent from me

(Q) Restoring nandroid backup

I rooted and installed CWM. I then did a nandroid backup of my current stock rom. Then I flashed sky icecream sandwich. Can I just go into CWM and flash my stock backup to get back to stock rooted with CWM, or do I have to go back through Odin?

Anytime you restore a nandroid backup it takes it back to exactly how you were when you made the backup

Unless............

Unless cwm screws up and you cant mount the internal sd. Then u must odin

[Q] CWM Recovery wont restore a backup

My recovery wont restore any backups I make. This may be an easy fix and I'm sure I'm asking a stupid question but I can't seem to get it to restore a back up. I get an error when it trys to. I'm on CWM-based Voodoo Lagfix Recovery v5.0.2.7.

what error do you get?
Sent from my SGH-T959V using xda premium

Let me guess... Cant mount system in the restore feature. I use titanium back and just use flashable roms if i need to restore... Dont know any other way around it. Maybe someone else does.
Sent from my SGH-T959V using XDA

5.0.2.7 shouldn't have the issue with being unable to mount /system.
What error or message do you get when you try to restore?

I'm getting the mount/system error. I thought flashing the new cwm recovery and kernel would have gotten rid of that problem. It never did. I still get the same error.

And your trying to restore back ups made with CWM 5. Not CWM 3 right.

if the backup was made with cwm 3.x it won't restore with cwm 5.x and vice versa.
Also, GB roms had issues restoring backups made with cwm 3.x - you had to flash a clean rom, and then do an advanced restore, and restore data only.

Problem restoring nandroid backups?

Helllo everyone, I have problem in restoring nandroid backups generated by CWM 5.0.2.0
When I restore backup, I get boot loops and cleaning up dalvik cache and cache wont help. First i thought it maybe a random error but it has happened even after lot of tries. I dont have a faulty sd card.
The backup i was trying to restore was of oxygen 2.3.2 with a theme installed + some apps
Can anyone suggest a a solution?

If you are getting bootloops then sorry to say the backup is not a healthy one, you need to reflash ROM. I also had problems with themes installed, now I made a backup keeping everything stock with apps.

Oxygen has inbuilt app2sd script. This causes problems many times. I would recommend restoring the system first, boot it up den restore both data and sdext.

sarus_b said:
Helllo everyone, I have problem in restoring nandroid backups generated by CWM 5.0.2.0
When I restore backup, I get boot loops and cleaning up dalvik cache and cache wont help. First i thought it maybe a random error but it has happened even after lot of tries. I dont have a faulty sd card.
The backup i was trying to restore was of oxygen 2.3.2 with a theme installed + some apps
Can anyone suggest a a solution?
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Click to collapse
Switch to twrp or amonra(if I'm not mistaken amonra can restore cwm backups).
Sent from my LG-P500 using xda premium

if Im not mistaken, we can flash a recovery within a recovery right?

sarus_b said:
if Im not mistaken, we can flash a recovery within a recovery right?
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Yes, just download xxx.zip and flash, no problems, also they are very stable if you are wondering...
Sent from my LG-P500 using xda premium

You could have an error, like bad block, in your internal memory. To rule that out, install some other ROM fresh & see if you get errors.
-- Sent from my TouchPad using Communities

If the backup isn't restoring, then you should try restoring the backup, then reflashing the rom. I would recommend switching to amon ra recovery or twrp since they don't have that problem and imho they're better.

It seems the theme I installed had some problems since they replace system files such as framework-res.apk , settings.apk etc.
I flashed clean oxygen, installed lot of apps, created and restored the backup and it seems to work flawlessly now.
post-mortem said:
You could have an error, like bad block, in your internal memory. To rule that out, install some other ROM fresh & see if you get errors.
-- Sent from my TouchPad using Communities
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Click to collapse
Thats not the case, if it was i would have phone's PCB replaced by now.
bluespoon4 said:
If the backup isn't restoring, then you should try restoring the backup, then reflashing the rom. I would recommend switching to amon ra recovery or twrp since they don't have that problem and imho they're better.
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Click to collapse
This solution may also work i think.

Restoring Etotalk stock ROM (ICS) using boot.img & recovery.img

I used a mod ROM but I made a backup before doing that. The problem is that I use now CWM recovery (6.0.1.2) and I cannot restore the stock data. I get "Error while flashing boot image". I do not know what I am doing wrong
I go to restore from internal sdcard --> and I choose the restored backup
I have wiped all the data/cache & dalvik cash available. But still nothing. Does anyone know?

Did you use a different version of CWM recovery when you took the backup? If so it might have a different version of nandroid backup in it and be using a different backup format. If the CWM recovery is different, can't you put the original CWM recovery back on so the backup will restore with it?

Unfortunately I do not remember which recovery version it had but I am almost certain that it was the same version
Sent from my ZTE V970 using xda app-developers app

Cool-J said:
Unfortunately I do not remember which recovery version it had but I am almost certain that it was the same version
Sent from my ZTE V970 using xda app-developers app
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Click to collapse
An easy way to tell is to think about if you ever installed a new recovery. ROMs don't do that for you. ROM Manager has the ability to update your recovery image if you tell it to do so.
Your error is telling you that the recovery you have installed doesn't know how to handle the backed up boot.img. You could removed the boot.img from the backup and try restoring it again. Google it, if you don't know how to do that.

Does the MD5 check pass?
I just installed 4EXT Recovery, and it was able to restore my recent CWM recovery backups where CWM could not (>10,000 files bug). It appears that it doesn't support your device yet, but you never know.
Failing that, perhaps look at other alternatives. Maybe see if TWRP can restore CWM recovery backups, and if it supports your device.
Good luck.