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Re: bad superblock after lvextend

To: "Frank J. Buchholz" <frankb@xxxxxxxxx>
Subject: Re: bad superblock after lvextend
From: Nathan Scott <nathans@xxxxxxx>
Date: Tue, 23 Nov 2004 15:49:39 +1100
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <41A299E5.4030604@ercwc.org>
References: <41A2837C.4080203@ercwc.org> <20041123002224.GC695@frodo> <41A299E5.4030604@ercwc.org>
Sender: linux-xfs-bounce@xxxxxxxxxxx
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On Mon, Nov 22, 2004 at 09:01:09PM -0500, Frank J. Buchholz wrote:
> 
> Running the command produces the following result.
> # od -c /dev/Volume00/LogVol00 -N 4
> 0000000
> #

Mmmm, not healthy.

> Looks like I'm in bad shape.
> I now realize how I created this problem, I just don't know how to fix it.
> 
> I mistakingly added /dev/sba as the physical volume to a volume group 
> that contained /dev/sba1, the one partition on sba.  These are 
> essentially one in the same.  So when I executed the lvextend command 
> device-mapper had an error.  I'm honestly surprised it did anything, 
> especially write over the superblock.
> 
> Any direction on how I can recover from within LVM?  I never was able to 

I don't know how to drive LVM... ask on the linux-lvm list?

cheers.

-- 
Nathan


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