[BBLISA] Reset root password on FreeBSD

[kurin at delete.org]

On Tue, Oct 23, 2012 at 02:50:23PM -0400, Mathew Snyder wrote:
> I've booted to installation media and selected the single-user mode. I've
> got the shell but when I attempt to follow the steps I've found on various
> sites it doesn't work. Generally, they all follow the same procedure:
> 
> mount -a (or mount -u /)
> passwd

This only works if the entries are in fstab, which obviously they won't
be if you're booting from a CD.

Mount them manually (e.g. `mount /dev/da0s1a /mnt`) and then chroot into
/mnt to run `passwd`.