David, a similar thing happened to me once after updating a FC4
system. No kernel would boot. I ended up booting from a resuce disk,
editing /etc/selinux/config and setting SELINUX=disabled, then booted
the system. This would still leave matters to explore but could at
least get your system up and running again. Good luck!
T.
Thanks Thad. I also thought about disabling SElinux. I have subscribed to their mail list. I hope they can help me find a solution. I know it's not easy to understand but at least we can have their explanation. I'll inform you of any solution I get.