[ILUG] Ext2-fs Errors

[Liam Bedford]

On Tue, Jul 31, 2001 at 07:24:46PM +1000, Roger Irwin came forth with:
> HELP!!
> 
> I was rebuilding my kernel over the weekend when I got Ext-fs errors. I then 
> had a bit of a poke around my system and it all looked ok and so I rebooted. 
> That was the last I saw of it :( When I rebooted I got a kernel panic error. 
> I then booted off the slackware CD and tried to mount my root partition 
> (/dev/hdb2).
> 
> When I try to mount it I get: Ext2-fs Error (device id0 (3,66)): 
> ext2_check_descriptior Block bitmap for group 0 not in group (Block 3)!
> 
> I tried "e2fsck -n /dev/hdb2" to see: Attempt to read read block from 
> filesystem resulted in short read while trying to open /dev/hdb2. Could the 
> be a zero-length partition?
> 
> I can mount /dev/hdb1 (it was my /boot partition) and my swap partition 
> /dev/hdb3.
> 
> If I try fdisk /dev/hdb it all looks fine. Just as it should be.
> 
> Any suggestions? Does anyone know of any software to scan the drive and 
> recover files?
what kernel version? A lot of the 2.4 ones had some nasty problems with
ext2.

Anyhow, try e2fsck -b 8192 /dev/hdb1
(or try 16384 or 32768).

That might get a different superblock.

L.
-- 
     dBP   dBBBBb | If you're looking at me to be an accountant
              dBP | Then you will look but you will never see
   dBP    dBBBK'  | If you're looking at me to start having babies
  dBP    dB' db   | Then you can wish because I'm not here to fool around
 dBBBBP dBBBBP'   | Belle & Sebastian (Family Tree)