Just a note for someone who might care about this:
I foolishly forgot to disable selinux in a system
I created by copying all the files from a virtual image.
When it booted, it said "I've got to relabel everything,
this may take a while."
So I figured I'd just wait for it, then a few minutes
later a message came up about a watchdog expiring
and it rebooted the system.
What fun :-). I assume it could have done that all day,
but I took advantage of the reboot to disable selinux.