>> OK, I got it booting. In a fairly useless config, but ... >> Booting from a -current amd64 cd55.iso cd-rom, I (E)dited the MBR so >> that the OpenBSD 'A6' partition started on sector 2048, and was 500MB >> in size.
>> I accepted the auto configured disklabel (i.e. all space in 'a') and >> installed w/o X, Compiler or games sets. >> Removing the CD and rebooting got me to the usual login prompt. >> >> I'm going to experiment some more, but I'm now suspicious that the old >> '512MB' limit is coming into play somehow. >> So for those following along, try a tiny OpenBSD MBR partition >> starting at sector 2048 and see what happens. And of course if it >> works, how big can your partition be before it stops working. > I've tried this and the system boots with 500MB, 1000MB, 2000MB but > doesn't with 4000MB. Since 2GB is way too small, I'm going to buying a > pci <-> sata card to avoid the Intel SATA chip. > > I'm thinking of buying a HighPoint Rocket 620 card. Anybody using this > card with OpenBSD? Or recommendations for a different pci <-> sata card? Unfortunately the pci <-> sata card didn't work either. However there was a bios upgrade released by Gigabyte a few days after my initial mail and with that bios version it works (using the Intel SATA chip). So I would like to thank everybody that has spent time diagnosing this problem. Kind regards, Martijn Rijkeboer