Jeffrey B. Layton wrote:

CentOS 4.2. I've been reading something about raidautorun. Would help in 
this case?

Try adding:

DEVICE partitions

to the top of your mdadm.conf and:

auto=part

to the end of your /dev/md1 definition.

eg. ARRAY /dev/md1 level=raid1 num-devices=2 
UUID=e235ee6c:415f1494:23c28b59:afd20140 devices=/dev/sda1,/dev/sdb1 
auto=part

Regards,

Richard