I had a similar puzzle to unravel with a CentOS (RHEL equivalent) box.
The clues there were in the log files that showed that gdm was exec-ing
shutdown. I'm not suggesting that is the answer here, but looking at
your logs may help.
While the CentOS shutdown process is different than FreeBSD, y
I'm in the process of planning a transition from VMWare (on CentOS host)
hosting service-specific FreeBSD virtual machines to the seemingly more
efficient, stable, and lower maintenance cost approach, now that I've
figured out at least some of the "magic" of creating jails under FreeBSD.
I do