From: Andrew Morton <akpm@digeo.com>
To: Keith Owens <kaos@ocs.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.4.20-rc1 dirty ext2 mount error
Date: Tue, 05 Nov 2002 21:46:19 -0800 [thread overview]
Message-ID: <3DC8ACAB.8C0DB37D@digeo.com> (raw)
In-Reply-To: 21293.1036560940@kao2.melbourne.sgi.com
Keith Owens wrote:
>
> The root partition was originally ext3. fstab now contains
>
> /dev/sda1 / ext2 defaults 1 1
>
> Booting 2.4.20-rc1 (ext3 as a module, not loaded yet) with a dirty / gets
>
> EXT2-fs: sd(8,1): couldn't mount because of unsupported optional features (4).
> Drop back to 2.4.18 and it works, automatically running fsck.ext2 -a /dev/sda1.
>
You sure? That would be a bug in 2.4.18...
ext2 does not know how to mount a needs-recovery ext3 filesystem. It
is flagged as an incompatible feature (4 -> EXT3_FEATURE_INCOMPAT_RECOVER).
If you run journal replay by mounting it with ext3 or running fsck across
it, then ext2 can mount it.
next prev parent reply other threads:[~2002-11-06 5:39 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-06 5:35 2.4.20-rc1 dirty ext2 mount error Keith Owens
2002-11-06 5:46 ` Andrew Morton [this message]
2002-11-06 6:26 ` Keith Owens
2002-11-06 8:28 ` Matt Bernstein
2002-11-06 8:41 ` Andreas Dilger
2002-11-06 10:43 ` Keith Owens
2002-11-06 11:21 ` Willy Tarreau
2002-11-06 16:39 ` Theodore Ts'o
2002-11-06 10:00 ` James H. Cloos Jr.
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