PowerMac G5 7,2 root & swap on SATA

[Ian Allison]

Hi List,

I have a PowerMac7,2 Dual PPC970 which I attempting to put OpenBSD on. A
post from last month
(http://marc.info/?l=openbsd-ppc&m=141215377210183&w=2) indicated that
they were having trouble with the root and swap partitions using the MP
kernel, but that the SP kernel was working fine for them. I get stuck at
the same point with both the MP and SP kernels, the final line I see
during a boot is

root on wd0a (0dd4441153447d67.a) swap on wd0b dump on wd0b

or occasionally

drm: initializing kernel modesetting (R350 0x1002:0x4E48 0x1002:0x4E48)

Then the system just hangs, eventually it spins up the fans and I power
it off.

I see similar behavior with SP and MP on both 5.5 and 5.6. bsd.rd works
fine; I can complete the partitioning and labeling of the disk, install
the sets and boot into bsd.rd and mount / (or any other partition). The
problem only seems to happen when trying to boot the system with the SP
or MP kernels.


My guess was that this is related to the last bullet point under
"Unsupported Hardware" which says that SATA "does not work on some
PowerMac G5 and Xserve G5 systems". My wd0 is indeed SATA but I wanted
to confirm that the problem I am having is a known issue.

I am currently trying to extract a dmesg from the bsd.rd but I'm not
having much luck.

Thanks in advance,
-Ian.