Go into disk druid with 5 empty SCSI drives.

Create a 31 meg RAID partition on each drive - you will now have
sda1, sdb1, sdc1, sdd1, sde1

Make a RAID filesystem using disk druid using these 5 partitions as a
RAID-1 /boot.

Create another partition of any type, now the 5 RAID partitions will be
forced onto the first 2 drives because of the /boot constraint of being
on the first two drives. Did not impose this until another partition
existed.

Workaround: Create RAID partitions with fdisk before entering the disk
druid screen.