Red Hat 5.8 (beta 1)

after installing the beta and rebooting into the os for the
first time, a message is displayed listing the filesystems
as they are unmount.  All appear to be unmounted w/o a
problem except /proc, which says:

/proc umount failed

I don't know if this is a bug proper since /proc isn't a
real filesystem on the disk but it does look tacky