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Date: Tue, 26 Aug 2003 08:51:50 -0700
From: Joshua Oreman <oremanj@get-linux.org>
To: dave <dmehler26@woh.rr.com>
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cc: questions@freebsd.org
Subject: Re: mounting linux ext3 partition
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On Tue, Aug 26, 2003 at 01:03:33AM -0400 or thereabouts, dave wrote:
> Hello,
>     I'm trying to mount a linux ext3 partition. I understand that it's
> possible to do it using the ext2 kernel driver so i've recompiled a kernel
> with that option in it. When i do:
> mount_ext2fs /dev/ad1 /mnt
> this is what i get.
> 
> ad1: 38166MB <WDC WD400AB-32CDB0> [77545/16/63] at ata0-slave UDMA100
> ext2fs: ad1: wrong magic number 0 (expected 0xef53)
> WARNING: mount of ad1s1 denied due to unsupported optional features
> ext2fs: ad1: wrong magic number 0 (expected 0xef53)
> WARNING: mount of ad1s1 denied due to unsupported optional features
> ext2fs: ad1: wrong magic number 0 (expected 0xef53)
> ext2fs: ad1: wrong magic number 0 (expected 0xef53)
> ext2fs: ad1: wrong magic number 0 (expected 0xef53)

I think your drive is marked "dirty". Please mount/umount it in Linux
and try again.

BTW: ext3 is compatible w/ext2 *ONLY* when the dirty bit is unset. When
     it is set, journal rollback is necessary which only ext3 can handle.

-- Josh

> 
> Any help appreciated.
> Dave.
> 
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