#!/bin/sh
# $NetBSD: mr.remount,v 1.1 1995/11/01 23:53:29 gwr Exp $
#
# Find out what the root is mounted on,
# remount the root read/write, then
# create a valid /etc/fstab for it.
#
# Uses: dmesg, grep, mount

# Given a sequence of lines like: "root on sd0b"
# print the last part of the last line: "sd0b"
findroot() {
	name='??'
	while read a b c d
	do
		name="$c"
	done
	echo "$name"
}

if [ -f /etc/fstab ]
then
	echo "root already mounted read/write"
	exit 1
fi

echo "Determining current root device..."
root=`/sbin/dmesg |grep '^root on ' |findroot`

echo "Remounting root device $root"
/sbin/mount -u "/dev/$root" /

echo "/dev/$root / ufs rw 1 1" > /etc/fstab
exit 0