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Old 03-30-2004, 04:47 PM   #1
klatch
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Registered: Feb 2004
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ext3 missing its file list


I need to retrieve files from my backup drive formatted with ext3. This is neccessary as the primary drive has suffered mechanical failure and is unusable. The drive previously has shown its contents, but no longer. I get the bad superblock message and when manually mounted it appears empty. It should have 6 large .tgz files. Cat shows it has lots of data on it and appart from the lack of files appears fully functional.

The drive is a maxtor 40GB model number 4D040H2.

Is their anything I can do?
 
Old 03-30-2004, 05:11 PM   #2
waster
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Try gpart, I think it is a debian package, but don't know where else you would get it. It looks through a raw disk and guesses the partition table, which I suspect you've lost. This is difficult to do, and can go badly wrong. Do you back up the partition table?

I recommend only mounting the drive READ ONLY until you fix. any writes on what appears to be a blank disk could ruin your 2004.
 
Old 03-31-2004, 02:27 AM   #3
klatch
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Thanks for replying.

It was running on Fedora Core 1, although I could plug it into a SUSE8.2 machine.

I know the names of the files I wish to recover if that makes any difference
 
Old 04-01-2004, 02:14 AM   #4
klatch
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Unfortunately Gpart did not work. Fdisk shows a valid hdb1 partition ( the relevant one).

I have tried e2fsck with numerous alternative superblocks found mainly by doing mke2fs -n and some others by debugfs dumpe2fs. They all come up with the same error

Invalid argument while reading block 33555985.

invalid argument while reading journal superblock

e2fsck: Invalid argument while checking ext3 journal for (/dev/hdb1).

I have six tared files I wish to retrieve ( .tgz format) a few are 2+GB.

Any help available ? Tools or suggestions. I have Fedora Core 1 and SUSE 8.2 available.
 
Old 04-01-2004, 03:50 AM   #5
waster
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I can't help with the specific problem, but

http://www.tldp.org/HOWTO/HOWTO-INDE...ml#ADMRECOVERY

has several related HOWTOs. Are these your backups you are trying to recover??? The only advice I can give is that BEFORE, if it's not too late, you do any writing, including fsck, on the disk, back it up using a partition imager (e.g. partimage, or dd (i think - never used it). Only then can you experiment trying to recover.
 
  


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