amd64 HP SA6i RAID5 no boot

[Per olof Ljungmark]

Hi,

What am I doing wrong?

7-Beta3 vanilla install from CD, I let sysinstall do "automatic" 
partitions and slices, then stops at "F1 FreeBSD" prompt and beeps. 
Obviously it cannot find anything to boot from.

System is a SA6i RAID5-array with 6x300GB disks. Possibly I need to 
enter drive geometry manually but have no idea where to get that info 
from, perhaps somebody knows where to look?

Thanks,

--per