Recovery a freebsd after whatever problem

If you had any trouble with your install (ndis module someone), there's an easy way to fix it.

1. Boot your pendrive/cdrom/dvd/whatever with the freebsd install
2. Enter the shell or start the LiveCD option (livecd is root without any password)
3. Create a directory where you can import your zfs pool: mkdir /tmp/zroot
4. Import your zpool there: zpool import -fR /tmp/zroot zroot 
5. Need access to /? No problem: mkdir /tmp/root && mount -t zfs zroot/ROOT/default /tmp/root
6. When you're done, unmount everything and reboot: zpool export zroot