Physically securing FreeBSD workstations & /boot/boot2

[Nerius Landys]

I seem to have found the answer to my own question.

The question was:
How do I prevent the boot2 bootstrap step from displaying a prompt
where the user can load a custom boot program and/or force booting
with options such as single user mode?

The answer that seems to work for me:
Add "-n" to /boot.config, I found this by ing the boot(8) man page.