Messages in this thread |  | | From | tytso@trampoli ... | Date | Wed, 1 Nov 2000 06:52:21 -0500 | Subject | Re: ext2fs disaster - how to recover some files ? |
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On Wed, Oct 25, 2000 at 06:41:57PM -0600, Andreas Dilger wrote: > Since you have a filesystem > 500MB it will default to having 4kB blocks, > and the backup superblocks will be aligned on 32768 block boundaries. > Try "e2fsck -B 4096 -b 32768" (or 98304, 163840, 229376, 81920) to see > if that works. I think I will submit a patch to Ted which offers more > suggestions than 8193 for backup blocks, since not too many people know > where the backups are located on more recent filesystems since they > will normally have 4kB blocks these days.
This is a known bug; it's fixed (incorrectly) in 1.19, and will be fixed in 1.20.
You don't have to specify -B 4096. "e2fsck -b 32768" is sufficient, as e2fsck will automatically figure out the proper blocksize.
- Ted
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