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Re: ext3 crash



On Apr 03, 2002  19:34 +0900, Andy Paul wrote:
> >You should also try whether "dd if=/dev/hda9" works at all, since it
> >seems you have some pretty major problems.
> 
> dd, hexdump work properly with the partition. Forgot to mention, the 
> partition is (was ?) rather big (40G), used 87%. Is there any ("hard") way 
> to recover anything?

Well, "restore from backup"...  That said, it is _very_ strange that
your primary and backup superblocks are corrupted.  Since the backup
superblocks (and group descriptors) are never written to by the kernel,
they should be OK unless you wiped out the entire disk.

A few interesting tidbits would be the first few kB of "od -Ax -tx4 /dev/hda9"
and if you download the e2fsprogs source and build the "findsuper" tool,
it may be able to shed a bit of light on what happened to your filesystem.

Cheers, Andreas
--
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert





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