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Date: Mon, 31 Dec 2001 00:18:22 -0700
From: Andreas Dilger <adilger@turbolabs.com>
To: Mike <maneman@gmx.net>
Cc: LKML <linux-kernel@vger.kernel.org>,
        Pierre Rousselet <pierre.rousselet@wanadoo.fr>
Subject: Re: Oops: UMOUNTING in 2.4.17 / Ext2 Partitions destroyed (3x)
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On Dec 30, 2001  17:59 +0100, Mike wrote:
> I tried 'e2fsck -f /dev/hdb3' and it returned:
> "Filesystem has unsupported Read-Only features while trying to open
> /dev/hdb3.

Try "tune2fs -l /dev/hdb3" or "debugfs -h /dev/hdb3" (both do the same
thing - spit out the ext2 filesystem superblock data.  What version of
e2fsck are you using?

> The SuperBlock could not be read or does not describe a correct ext2
> filesystem.
> ....If it /is/ ext2 then the Sb is corrupt, run 'e2fsck -b 8193 <device>'"
> 
> So I do 'e2fsck -b 8193 <device>' and it says: "Bad magic number in SB
> while trying to open /dev/hdb3"

You are better off trying "e2fsck -B 4096 -b 32768 /dev/hdb3" instead.

Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://www-mddsp.enel.ucalgary.ca/People/adilger/

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