Description of problem: FC3 x86_64 clean "Workstation" install with 32bit Compat added (244 packages). Upgrade to FC4-re0429.0. Resulting system is extremely hosed. FC4 kernel completely failed to install, 2.6.9-1.667.x86_64 is the only installed kernel. Maybe related to Bug #156656
*** This bug has been marked as a duplicate of 156656 ***