MD5 mismatch error during Clockwork restore

[thojmoto]

when i try to flash an old rom it tells me "MD5 mismatch".

what does this mean?

 

[ragnarokx]

I'll need more information:
1) what version of Android are you on now
2) do you already have a ROM, kernel or theme installed
3) what is the name of the ROM you're trying to flash
4) are you using Odin or Clockwork to flash it

 

[thojmoto]

i just installed EXT4 so im on QuantumRom v2.5.
made a nandroid backup of that.
i flashed Frozen Emotionless Beast theme throught the new clockwork and started getting force closes on the gmail app.
tryed to flash back to the last nandroid i just made and got that message.

edit: used Clockwork v2.5.1.2 to try to flash back

 

[lancelot916]

does titanium backup still work if I am moving from 2.1 to 2.2? i backed up using that and still trying to get this method working for ext4

 

[ragnarokx]

i just installed EXT4 so im on QuantumRom v2.5.
made a nandroid backup of that.
i flashed Frozen Emotionless Beast theme throught the new clockwork and started getting force closes on the gmail app.
tryed to flash back to the last nandroid i just made and got that message.

edit: used Clockwork v2.5.1.2 to try to flash back

If the problem is your GMail app, try going to Settings>Applications>Manage applications>GMail>Clear data and Clear cache

does titanium backup still work if I am moving from 2.1 to 2.2? i backed up using that and still trying to get this method working for ext4

I used MyBackup Pro, which is similar and it worked fine for me. As long as your backup is from a custom ROM you should be fine.

 

[thojmoto]

im a little more worried about why i can't flash back at this point. do u know how to fix that? thx for all the help btw ragnarokx i really appreciate it.

 

[ragnarokx]

No problem at all. Is it possible you made your backup in the old Clockwork, and are trying to restore that backup in the new Clockwork?

 

[thojmoto]

im almost positive i did it in the new 1. coz i use quick boot to get to it, and i always use that method to boot into recovery

 

[ragnarokx]

Perhaps it was just a bad backup? If you make another backup and it restores fine, that could be it.

 

[thojmoto]

i'll try that thx. im just worried i did something wrong and i don't know what MD5 mismatch means.

 

[ragnarokx]

MD5 is a "fingerprint" so to speak that is used to check the integrity of files. For example, when you download a file from the internet to your computer you can use an MD5 checksum to confirm every last piece of that file was correctly downloaded.

If there's an MD5 mismatch, that means that the fingerprint Clockwork is expecting is different from the fingerprint on the file, and it aborts the restore process. That's why I postulated that it was a bad backup - because if there was an error while backing up, that would change the fingerprint of that backup file.

 

[CalebConrad]

This is assuming you did not change the folder names and let Clockworkmod create them. I haven't had it happen until today, but it's not a nice message to see when you are trying to do a restore.

Code

Checking MD5 sums... MD5 mismatch!

To fix this problem use the code below. Substitute the final folder name for the backup you need to fix.

Code

adb shell # cd /sdcard/clockworkmod/backup/2010-06-29.20.22.53 # rm nandroid.md5 # md5sum *img > nandroid.md5

When that finishes, re-run the restore and everything should be fine.

NOTE: There could be something really wrong with your nandroid, so use this tutorial as a learning experience and not a fix-all. In my case, everything was fine after restoring. However, that may not always be the case. Do this with caution.