[ale] Re: bad XFS superblock

[Dow Hurst]

http://www.sinz.org/Michael.Sinz/Linux/boot.html

Hope this helps you boot and run xfsrepair.  Like John said, you do have 
run the repair tool on an unmounted file system.
Dow


John Trostel wrote:

>>From http://www.oss.sgi.com/projects/xfs/faq.html
>
>You can not run xfs_repair on a mounted filesystem although support is
>available in CVS (08-02-2002) that let's you run xfs_repair with the -n
>switch on a read-only mounted filesystem. You must not try to repair a
>mounted fs since this will result in dataloss and corruption when
>attempted.
>If you have to repair you're filesystem it needs to be unmounted first.
>If this is the root (/) filesystem this will mean you have to boot from
>a bootable CD and perform the repair on the unmounted filesystem. There
>is a link to various bootable floppy/cd projects mentioned in the FAQ
>here.
>
>Did you run xfs-repair with the '-n' option? It should look for a
>secondary superblock.
>
>On Thu, 2003-11-13 at 14:53, ChangingLINKS wrote:
>
>  
>
>>From: "ChangingLINKS.com" <groups at ChangingLINKS.com>
>>Subject: [ale] bad XFS superblock
>>To: ale at ale.org
>>Message-ID: <200311131144.05898.groups at ChangingLINKS.com>
>>Content-Type: text/plain;  charset="us-ascii"
>>
>>My Suse 8.2 crashed M$FT style while I was using ymessenger.
>>When I tried to I reboot it, it gave an error (forgot the error but it 
>>mentioned the filesystem). I tried rebooting several times and then I tried 
>>using xfs_repair and xfs_check. Those attempts returned "bad superblock and 
>>input/output error." By googling and testing, I came to understand that I 
>>have a bad superblock. I tried mounting the HD on another machine - and it 
>>would not mount (or even be recognized correcty by YAST2.
>>However, the drive did get recognized by the BIOS, and if I use it as the 
>>master, grub comes up and it dies right about the time it is trying to load 
>>the filesystem.
>>
>>I could not find anyone mentioning how to "fix" a superblock in XFS. Is it 
>>possible for me to repair this filesystem, or am I SOL? The installation had 
>>some nice information (bookmarks, history, special software installations) 
>>and I would like to recover it if I can. Anyone?
>>-- 
>>Wishing you Happiness, Joy and Laughter,
>>Drew Brown
>>http://www.ChangingLINKS.com
>>    
>>
>
>
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>Ale at ale.org
>http://www.ale.org/mailman/listinfo/ale
>
>  
>

-- 
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Dow Hurst                  Office: 770-499-3428            *
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