On Thu, 2011-03-24 at 17:33 -0500, Lindsay Haisley wrote:
> It looks to me, from the boot log,
> as if the problem is that there are _two_ partitions named /dev/sda1 and
> the RAID subsystem can't see the one that's a component of
> md0.  /etc/mdadm.conf contains:
> 
> DEVICE /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1
> ARRAY /dev/md0 devices=/dev/sda1,/dev/sdb1
> ARRAY /dev/md1 devices=/dev/sdc1,/dev/sdd1

@Paul, Ah, I see!

The component drives in a RAID-1 array have the _same_ UUID, so I would
assume that a line in /etc/mdadm.conf such as:

ARRAY /dev/md0 UUID=d3176595:06cb3677:46406ca7:d12d146f

would identify _both_ component drives.  This is what the output of
mdadm --examine --brief --scan --config=partitions would imply.

I'll try this.

I'm not fond of UUID's.  They're hard to read and impossible to copy by
hand without making mistakes!

-- 
Lindsay Haisley       | "We have met the enemy, and it is us."
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