F8 on a Mac Pro hangs during boot

[Gabriel Somlo]

I have installed (with no problems whatsoever) F8 test on a Mac Pro
tower. Trouble is, once I try to reboot into F8 after the install is
done, the machine hangs in rc.sysinit right after calling /sbin/start_udev

I've booted it using the rescue image, ran yum to bring it up to date,
and now it gets as far as 'setting hostname', still in rc.sysinit.

I'm wondering if anyone else has seen this, and what do do about
narrowing down the root cause...

Thanks,
Gabriel