Phil provided me with a PC that was standard in every respect except it has a serial ATA drive. SevernTsui had had issues with his SATA-equipped machine using the Debian 2.4 kernel; he fixed them by upgrading to 2.6, but we've got other IssuesWithKernel26.
First step is to try a 2.6 image on this machine. FC1 rescue disc won't see the filesystem (guess it has no SATA drivers). FC2's rescue disc (2.6 kernel) seems to lock up, just like Debian's kernel - how interesting. It sees the drive as /dev/sda1, but won't mount it automagically. (Maybe FC1 did as well?)
So:
# mount /dev/sda5 /mnt/sysimage # grub (now we're in grubby's cli) grub# root (hd0,4) grub# setup (hd0)ie, these are the same steps we normally use to get grub going anyway. And grub works, hurray! And I also discovered it helps if you edit menu.lst to look in the right place for root.