Make FBSD8 fsck happy.
Make FBSD8 fsck happy.

For whatever reason, fsck on FreeBSD 8 cannot determine the FS type of the
root device. So if the straight fsck fails, we try again with "-t ufs".

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome