warnings from mdadm (FC3)

[David Jansen]

I'm installing a server with FC3. The machine has 2 disks, and I have
configured a number of partitions for software raid (raid1).
Installation works fine, but I see errors (warnings?) like this when the
machine boots:
mdadm: only specify super-minor once, super-minor=0 ignored.
mdadm: only specify super-minor once, super-minor=1 ignored.
mdadm: only specify super-minor once, super-minor=2 ignored.
mdadm: only specify super-minor once, super-minor=3 ignored.

Everything seems to work fine (fsck, /proc/mdstat etc).
Are these warnings normal and safe to ignore?

David Jansen