Thanks for looking at it, The BIOS has really 2 options: ATA and OFF If I pick OFF the boot proceeds and in the install, step 2 no disks show up, which makes me believe that OpenSolaris 2008.05 can not detect the disks and the installation becomes pointless.
So, I have to stay with the "ATA" switch, which exhibits the problem Note that the system does not have hardware RAID controller or AHCI -- This message posted from opensolaris.org