Assertion error installing FC3

[Rick Lim]

I am upgrading a FC2 to FC3 and using a 350 mhz Asus P2B motherboard with an
IBM IBM-DTLA-305030 disk (30 gig drive).

When I try to upgrade it looks like the upgrade tries to read the disk
geometry and then gives an error :

Assertion(heads>0) at disk_dos.c: 485 in function probe_partion_for_geom()
failure.

Has anyone else run into this problem with upgrading ????
Or does anyone have a solution to this problem.