reboot and : boot -c ..... disable pciide ...... continuing ...... (no wd* in dmesg) .....
(Try -current)
See wd(4) and try "change wd" ... flags => 0x0ffc - i.e. no UDMA or DMA.
This will get you installed, but wasting CPU on PIO. Then, depending on your chipset, you may need to hack at pciide.c to try to add your chip revision to a DMA capable table - this is what I tend to do with "new" SIS chipsets.
Peter
