On 03 Apr 2004, Ninti Systems wrote:

I've been able to do everything involved in setting up a simple RAID1
with 2 IDE disks on Slackware 9.1 except get it to actually keep
working on reboot.

I installed on one disk, built 'degraded' RAID1 devices on the second
disk, copied data, etc. I can hot add devices from the original disk
to the RAID arrays. RAID devices in /etc/fstab come up (in degraded
mode) on boot.

The problem is that hot-added devices never stick, the RAID arrays are
always degraded again on reboot. 

mdadm complains of missing superblocks. I have read the man page but
can't see how to manage superblocks (create/delete) if this is even
possible.

I'm wondering if have to make the original install partitions type
'fd' as well as those on the second disk?

The kernel auto-discovery will only probe a partition that has type
'fd', so if you want both parts of the mirror to work, both need to be
type 'fd'.

     Daniel

-- 
Democracy is ever eager for rapid progress, and the only
progress which can be rapid is progress made down hill.
        -- Sir James Jeans