No problem installing to a VIA VT6420 SATA RAID Controller, but can't answer
for your particulars. I do see one thing. You must enter the drive, not only
cfdisk. For instance, "cfdisk /dev/sda" would work, but "cfdisk" would not
display the drive. Also, that i915 chipset is new, and some fellas are having
problems with it ... you might need a later kernel to detect it.