The usual startup sequence is:

/sbin/fsck -A
RC=$?
if [ $RC -ge 4 ]; then
	echo "***********************************"
	echo "*** ERROR CHECKING FILESYSTEMS. ***"
	echo "*** SYSTEM NEEDS MAINTENANCE.   ***"
	echo "***********************************"
	slogin
elif [ $RC -ge 2 ]; then
        echo "***********************************"
        echo "*** The filesystem was changed. ***"
        echo "*** The system will now reboot. ***"
        echo "***********************************"
	umount -a -r
	reboot -f
fi