Re: Crash while increasing RAID5 from 3 disks to 5, array won't build.

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On Thu, December 4, 2008 2:43 am, Sean Hildebrand wrote:
> blkid reports that all five disks have the same UUID.
>
> Specifying disks by UUID results in "mdadm: no devices found for
> /dev/md0".
>
> Specifying disks based on their positions, /dev/sd[abcef]1 in this
> case, results in "mdadm: superblock on /dev/sda1 doesn't match others
> - assembly aborted" and it'll continue doing that with [bcef]1 if a is
> removed.
>
> mdadm --detail --scan outputs nothing.
>
> I've tried assembling the original three disks sans the two new ones
> to no avail.

Please:
   git clone git://neil.brown.name/mdadm
   cd mdadm
   make

and try the 'mdadm' that creates.
If that still doesn't work, please report the output of
   mdadm -E /dev/sd[abcdef]1
and
   mdadm -Avv /dev/md0 /dev/sd[abcdef]1

NeilBrown

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