I have been running FC3 and FC4 on a DFI K8M800-MLVF motherboard using various old PATA drives just fine for over a year now.
I've been trying to get it to boot off of a larger SATA drive with FC4, but no matter what I do, the best I can get after the initial install is for the system to hang at:
GRUB Loading Stage2...
I tried it again last night with FC5, and got the exact same result.
The motherboard has the VIA SATA controller, and I have updated it to the latest BIOS.
It turns out that other people have run into the same problem on various motherboards since FC3, which were thought to be have been solved, but at least for this motherboard, they have not been solved.
I have tried a number of BIOS settings, and reinstalled FC5 with both MBR and SDA1 GRUB install methods with the same results.
Here are other accounts of the problem with this motherboard and the closed bug from FC3 which has lots of reports of the problem with both SATA and PATA drives on various motherboards:
I've heard of people using lilo instead of grub as a workaround, but I haven't had any luck finding RPMs of LILO for FC5 (or FC4) yet...
For my next stem, I may download a FC2 DVD to see if it solves this particular issue, and if it does, I'll downgrade to the FC2 GRUB RPM in rescue mode after installing FC5.
Does anyone know what change in GRUB caused the problems?