[arch-general] Software RAID installation problems

Gerhard Brauer gerhard.brauer at web.de
Wed Jul 22 06:37:15 EDT 2009

Am Dienstag, den 21.07.2009, 21:45 -0400 schrieb Samuel Baldwin:

> My drives RAID drives are set up as so: sdc1 and sdd1 are mirrored to
> make md0, sde1 and sdf1 are mirrored to make md1. These are mounted at
> /mnt/md0 and /mnt/md1, respectively, and formatted to ext4.

Not sure if i understand: You don't boot from the raid arrays, correct?
These are only data or whatever arrays which you mount to /mnt/mdX?
Have you put your raid module (raid1) in /etc/rc.conf->MODULES and have
you put your array specs into /etc/mdadm.conf?
If not:
Boot system
modprobe raid1
mdadm -E -s >>/etc/mdadm.conf
mdadm -A -s
Also the partition types should be *fd* on all raid array members.
Try booting again..

But if you have / (and/or /boot) on the raid arrays:
Have you added the mdadm HOOK to /etc/mkinitcpio.conf and (not sure if
needed but surely recommend) filled /etc/mdadm.conf with your array


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