Re: testing 2.6.14-rc4: unmountable fs after xfs_force_shutdown

[Eric Sandeen]

David Greaves wrote:
> haze:~# mount /scratch
> mount: /dev/video_vg/video_lv: can't read superblock
>
> haze:~# xfs_repair -n /dev/video_vg/video_lv
> Phase 1 - find and verify superblock...
> superblock read failed, offset 0, size 524288, ag 0, rval 0

First, why can't it be read?  any kernel messages as a result?  can you 
do a simple dd -from- this block device?

-Eric
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