Also, during installation, disk druid asked me how I wanted to format the /dev/md0 RAID. I could select ext2, ext3, RAID, LVM, etc. Now, how can you format a raid set as RAID? It already knows it is RAID. So I selected it just to see what it would do. It skipped the formating of /dev/md0 and this may also contributed to not booting.
I have no idea what "formatting a RAID drive as RAID" means, but once /dev/md0 is created you should format it with a filesystem (e.g. ext2, ext3, etc.). What you have created is a RAID array which is a type of _partition_ really; there is no such thing as a RAID filesystem.
-- Rodolfo J. Paiz rpaiz@xxxxxxxxxxxxxx