Are you able to use the rescue disk to boot from to view your
mount points for:
/ (root)
/home
/swap
Once you are able to do that, view the log files under /var/log
of the root partition. Let me know what the /var/log/message
says, then we can go on from here.
Look here at the following thread for more information.
Red Hat custom Kernel compilation mini-How-To for Red Hat 8-9