Les, I only did a 'cat /proc/mdstat' after I had managed to get the md devices mounted by creating them in mdadm. I definitely did change the partition id to 'fd' with... /sbin/parted /dev/hde set 1 raid on /sbin/parted /dev/hde set 2 raid on /sbin/parted /dev/hde set 3 raid on /sbin/parted /dev/hde set 5 raid on /sbin/parted /dev/hde set 6 raid on I assumed I didn't have to turn any flags off with parted when I did this. Jack