#!/bin/ksh
#	$OpenBSD: upgrade.sh,v 1.88 2015/12/06 09:30:27 rpe Exp $
#	$NetBSD: upgrade.sh,v 1.2.4.5 1996/08/27 18:15:08 gwr Exp $
#
# Copyright (c) 1997-2015 Todd Miller, Theo de Raadt, Ken Westerback
# Copyright (c) 2015, Robert Peichaer <rpe@openbsd.org>
#
# All rights reserved.
#
# Copyright (c) 1996 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Jason R. Thorpe.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

#	OpenBSD upgrade script.

# install.sub needs to know the MODE.
MODE=upgrade

# Include common subroutines and initialization code.
. install.sub

# Have the user confirm that $ROOTDEV is the root filesystem.
get_rootinfo
while :; do
	ask "Root filesystem?" $ROOTDEV
	resp=${resp##*/}
	[[ -b /dev/$resp ]] && break

	echo "$resp is not a block device."
done
ROOTDEV=$resp

echo -n "Checking root filesystem (fsck -fp /dev/$ROOTDEV)..."
fsck -fp /dev/$ROOTDEV >/dev/null 2>&1 || { echo "FAILED."; exit; }
echo	"OK."

echo -n "Mounting root filesystem (mount -o ro /dev/$ROOTDEV /mnt)..."
mount -o ro /dev/$ROOTDEV /mnt || { echo "FAILED."; exit; }
echo	"OK."

# The fstab, hosts and myname files are required.
for _f in fstab hosts myname; do
	[[ -f /mnt/etc/$_f ]] || { echo "No /mnt/etc/$_f!"; exit; }
	cp /mnt/etc/$_f /tmp/$_f
done
hostname $(stripcom /tmp/myname)
THESETS="$THESETS site$VERSION-$(hostname -s).tgz"

# Configure the network.
enable_network

# Fetch the list of mirror servers and installer choices from previous runs.
startcgiinfo

# Create a skeletal /etc/fstab which is usable for the upgrade process.
munge_fstab

# fsck -p non-root filesystems in /etc/fstab.
check_fs

# Mount filesystems in /etc/fstab.
umount /mnt || { echo "Can't umount $ROOTDEV!"; exit; }
mount_fs

# Feed the random pool some entropy before we read from it.
feed_random

# Ask the user for locations, and install whatever sets the user selected.
install_sets

# Perform final steps common to both an install and an upgrade.
finish_up