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Old 02-10-2004, 02:18 PM   #1
Registered: Feb 2003
Location: Toronto
Distribution: RH8 / FC1 / Gentoo / Debian / FreeBSD / Centos / Ubuntu
Posts: 182

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Corrupted ext3 Filesystem. How do I fix it?

I've been searching for how to fix my corrupted filesystem with little success. I tried "shutdown -r -F" -- didn't work. I'm running Fedora Core 1. Filesystem is ext3. Here's a screen dump:

[root@coolman root]# fsck /dev/sda2 -n -f
fsck 1.34 (25-Jul-2003)
e2fsck 1.34 (25-Jul-2003)
Warning! /dev/sda2 is mounted.
Warning: skipping journal recovery because doing a read-only filesystem check.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences: +9668870 -9668871
Fix? no

/: ********** WARNING: Filesystem still has errors **********

/: 201321/5183584 files (0.7% non-contiguous), 1015131/10361925 blocks
[root@coolman root]#

Everything seems to work fine. Should I even be concerned about this?

Old 02-10-2004, 02:32 PM   #2
Registered: May 2001
Location: Germany, Süd-Baden
Distribution: Gentoo
Posts: 139

Rep: Reputation: 15
make a backup .
theres no hint i can give except this one.
i can tell you: do a e2fsck with wrong options brought my nearly full harddrive to lost+found.
be carefull <lame>
Old 02-10-2004, 03:25 PM   #3
Registered: Feb 2003
Location: Toronto
Distribution: RH8 / FC1 / Gentoo / Debian / FreeBSD / Centos / Ubuntu
Posts: 182

Original Poster
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Already been there. Fortunately, I am running this copy of Fedora under VMware. When I mess up, I just restore a previous good image and my mistake is gone.

Filesystem still corrupt. Any suggestions?
Old 02-10-2004, 03:37 PM   #4
Registered: Jan 2004
Location: Green Bay
Distribution: RedHat 8.0, LFS-5.0
Posts: 100

Rep: Reputation: 15
fsck -t ext3 /dev/sda2
Why do you have -f and -n? They are not, at least according to the documentation I have, valid switches. Also, switches belong before the filesystem name.

Old 02-10-2004, 03:43 PM   #5
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Registered: Nov 2002
Location: pikes peak
Distribution: Slackware, LFS
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heh, the only 2 times I tried installing Gentoo and/or Debian, the ext3 file system got fubar'd and rendered my drive useless......had to go to the H/D mfg website and download some tools to a floppy and let the tools fix the drive...........IE.....I lost everything on the drive itself.......luckily I had all data "backed up"

good luck........
Old 02-11-2004, 02:23 PM   #6
Registered: Feb 2003
Location: Toronto
Distribution: RH8 / FC1 / Gentoo / Debian / FreeBSD / Centos / Ubuntu
Posts: 182

Original Poster
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Obviously, using different versions, jazernorth. Here are the options on my version:
Usage: fsck.ext3 [-panyrcdfvstDFSV] [-b superblock] [-B blocksize]
[-I inode_buffer_blocks] [-P process_inode_size]
[-l|-L bad_blocks_file] [-C fd] [-j ext-journal]
[-E extended-options] device

Emergency help:
-p Automatic repair (no questions)
-n Make no changes to the filesystem
-y Assume "yes" to all questions
-c Check for bad blocks and add them to the badblock list
-f Force checking even if filesystem is marked clean
-v Be verbose
-b superblock Use alternative superblock
-B blocksize Force blocksize when looking for superblock
-j external-journal Set location of the external journal
-l bad_blocks_file Add to badblocks list
-L bad_blocks_file Set badblocks list

Thanks for your input -- confirms what I suspected -- time to start over. This was a relatively new install anyways. No data lost.

Old 02-12-2004, 10:55 AM   #7
Registered: Oct 2003
Location: Montreal Beach
Distribution: Debian Unstable
Posts: 368

Rep: Reputation: 30
This might be the journaling system of ext3 that is corrupted. You might want to mount it as ext2 and see if you can save some DATA.


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