#!/bin/sh
#	$NetBSD: install.sh,v 1.1 1996/01/06 22:45:13 pk Exp $
#
# Copyright (c) 1995 Jason R. Thorpe.
# All rights reserved.
#
# 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.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
#	This product includes software developed for the NetBSD Project
#	by Jason R. Thorpe.
# 4. The name of the author may not be used to endorse or promote products
#    derived from this software without specific prior written permission
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
#

#	NetBSD installation script.
#	In a perfect world, this would be a nice C program, with a reasonable
#	user interface.

FILESYSTEMS="/tmp/filesystems"		# used thoughout
FQDN=""					# domain name

trap "umount /tmp > /dev/null 2>&1" 0

MODE="install"

# include machine-dependent functions
# The following functions must be provided:
#	md_get_diskdevs()	- return available disk devices
#	md_get_cddevs()		- return available CD-ROM devices
#	md_get_ifdevs()		- return available network interfaces
#	md_installboot()	- install boot-blocks on disk
#	md_checkfordisklabel()	- check for valid disklabel
#	md_labeldisk()		- put label on a disk
#	md_welcome_banner()	- display friendly message
#	md_not_going_to_install() - display friendly message
#	md_congrats()		- display friendly message
. install.md

# include common subroutines
. install.sub


# Good {morning,afternoon,evening,night}.
md_welcome_banner
echo -n "Proceed with installation? [n] "
getresp "n"
case "$resp" in
	y*|Y*)
		echo	"Cool!  Let's get to it..."
		;;
	*)
		md_not_going_to_install
		exit
		;;
esac

# XXX Work around vnode aliasing bug (thanks for the tip, Chris...)
ls -l /dev > /dev/null 2>&1

# Deal with terminal issues
md_set_term

# Get timezone info
get_timezone

# We don't like it, but it sure makes a few things a lot easier.
do_mfs_mount "/tmp" "2048"

# Install the shadowed disktab file; lets us write to it for temporary
# purposes without mounting the miniroot read-write.
cp /etc/disktab.shadow /tmp/disktab.shadow

while [ "X${ROOTDISK}" = "X" ]; do
	getrootdisk
done

# Make sure there's a disklabel there.  If there isn't, puke after
# disklabel prints the error message.
md_checkfordisklabel ${ROOTDISK}
case "$resp" in
	1)
		cat << \__disklabel_not_present_1

FATAL ERROR: There is no disklabel present on the root disk!  You must
label the disk with SYS_INST before continuing.

__disklabel_not_present_1
		exit
		;;

	2)
		cat << \__disklabel_corrupted_1

FATAL ERROR: The disklabel on the root disk is corrupted!  You must
re-label the disk with SYS_INST before continuing.

__disklabel_corrupted_1
		exit
		;;

	*)
		;;
esac

# Give the user the opportinuty to edit the root disklabel.
cat << \__disklabel_notice_1

You have already placed a disklabel onto the target root disk.
However, due to the limitations of the standalone program used
you may want to edit that label to change partition type information.
You will be given the opporunity to do that now.  Note that you may
not change the size or location of any presently open partition.

__disklabel_notice_1
echo -n	"Do you wish to edit the root disklabel? [y] "
getresp "y"
case "$resp" in
	y*|Y*)
		md_prep_disklabel
		disklabel -W ${ROOTDISK}
		disklabel -e ${ROOTDISK}
		;;

	*)
		;;
esac

cat << \__disklabel_notice_2

You will now be given the opportunity to place disklabels on any additional
disks on your system.
__disklabel_notice_2

_DKDEVS=`rmel ${ROOTDISK} ${_DKDEVS}`
resp="X"	# force at least one iteration
while [ "X$resp" != X"done" ]; do
	labelmoredisks
done

# Assume partition 'a' of $ROOTDISK is for the root filesystem.  Loop and
# get the rest.
# XXX ASSUMES THAT THE USER DOESN'T PROVIDE BOGUS INPUT.
cat << \__get_filesystems_1

You will now have the opportunity to enter filesystem information.
You will be prompted for device name and mount point (full path,
including the prepending '/' character).

Note that these do not have to be in any particular order.  You will
be given the opportunity to edit the resulting 'fstab' file before
any of the filesystems are mounted.  At that time you will be able
to resolve any filesystem order dependencies.

__get_filesystems_1

echo	"The following will be used for the root filesystem:"
echo	"	${ROOTDISK}a	/"

echo	"${ROOTDISK}a	/" > ${FILESYSTEMS}

resp="X"	# force at least one iteration
while [ "X$resp" != X"done" ]; do
	echo	""
	echo -n	"Device name? [done] "
	getresp "done"
	case "$resp" in
	done)
		;;

	*)
		_device_name=`basename $resp`

		# force at least one iteration
		_first_char="X"
		while [ "X${_first_char}" != X"/" ]; do
			echo -n "Mount point? "
			getresp ""
			_mount_point=$resp
			if [ "X${_mount_point}" = X"/" ]; then
				# Invalid response; no multiple roots
				_first_char="X"
			else
				_first_char=`echo ${_mount_point} | \
				    cut -c 1`
			fi
		done
		echo "${_device_name}	${_mount_point}" >> \
		    ${FILESYSTEMS}
		resp="X"	# force loop to repeat
		;;
	esac
done

echo	""
echo	"You have configured the following devices and mount points:"
echo	""
cat ${FILESYSTEMS}
echo	""
echo	"Filesystems will now be created on these devices.  If you made any"
echo -n	"mistakes, you may edit this now.  Edit? [n] "
getresp "n"
case "$resp" in
	y*|Y*)
		vi ${FILESYSTEMS}
		;;
	*)
		;;
esac

# Loop though the file, place filesystems on each device.
echo	"Creating filesystems..."
(
	while read line; do
		_device_name=`echo $line | awk '{print $1}'`
		newfs /dev/r${_device_name}
		echo ""
	done
) < ${FILESYSTEMS}

# Get network configuration information, and store it for placement in the
# root filesystem later.
cat << \__network_config_1
You will now be given the opportunity to configure the network.  This will
be useful if you need to transfer the installation sets via FTP or NFS.
Even if you choose not to transfer installation sets that way, this
information will be preserved and copied into the new root filesystem.

Note, enter all symbolic host names WITHOUT the domain name appended.
I.e. use 'hostname' NOT 'hostname.domain.name'.

__network_config_1
echo -n	"Configure the network? [y] "
getresp "y"
case "$resp" in
	y*|Y*)
		echo -n "Enter system hostname: "
		resp=""		# force at least one iteration
		while [ "X${resp}" = X"" ]; do
			getresp ""
		done
		hostname $resp
		echo $resp > /tmp/myname

		echo -n "Enter DNS domain name: "
		resp=""		# force at least one iteration
		while [ "X${resp}" = X"" ]; do
			getresp ""
		done
		FQDN=$resp

		configurenetwork

		echo -n "Enter IP address of default route: [none] "
		getresp "none"
		if [ "X${resp}" != X"none" ]; then
			route delete default > /dev/null 2>&1
			if route add default $resp > /dev/null ; then
				echo $resp > /tmp/mygate
			fi
		fi

		echo -n	"Enter IP address of primary nameserver: [none] "
		getresp "none"
		if [ "X${resp}" != X"none" ]; then
			echo "domain $FQDN" > /tmp/resolv.conf
			echo "nameserver $resp" >> /tmp/resolv.conf
			echo "search $FQDN" >> /tmp/resolv.conf

			echo -n "Would you like to use the nameserver now? [y] "
			getresp "y"
			case "$resp" in
				y*|Y*)
					cp /tmp/resolv.conf \
					    /tmp/resolv.conf.shadow
					;;

				*)
					;;
			esac
		fi

		echo ""
		echo "The host table is as follows:"
		echo ""
		cat /tmp/hosts
		echo ""
		echo "You may want to edit the host table in the event that"
		echo "you need to mount an NFS server."
		echo -n "Would you like to edit the host table? [n] "
		getresp "n"
		case "$resp" in
			y*|Y*)
				vi /tmp/hosts
				;;

			*)
				;;
		esac

		cat << \__network_config_2

You will now be given the opportunity to escape to the command shell to
do any additional network configuration you may need.  This may include
adding additional routes, if needed.  In addition, you might take this
opportunity to redo the default route in the event that it failed above.
If you do change the default route, and wish for that change to carry over
to the installed system, execute the following command at the shell
prompt:

	echo <ip_address_of_gateway> > /tmp/mygate

where <ip_address_of_gateway> is the IP address of the default router.

__network_config_2
		echo -n "Escape to shell? [n] "
		getresp "n"
		case "$resp" in
			y*|Y*)
				echo "Type 'exit' to return to install."
				sh
				;;

			*)
				;;
		esac
		;;
	*)
		;;
esac

# Now that the network has been configured, it is safe to configure the
# fstab.
awk '{
	if ($2 == "/")
		printf("/dev/%s %s ffs rw 1 1\n", $1, $2)
	else
		printf("/dev/%s %s ffs rw 1 2\n", $1, $2)
}' < ${FILESYSTEMS} > /tmp/fstab

echo	"The fstab is configured as follows:"
echo	""
cat /tmp/fstab
cat << \__fstab_config_1

You may wish to edit the fstab.  For example, you may need to resolve
dependencies in the order which the filesystems are mounted.  You may
also wish to take this opportunity to place NFS mounts in the fstab.
This would be especially useful if you plan to keep '/usr' on an NFS
server.

__fstab_config_1
echo -n	"Edit the fstab? [n] "
getresp "n"
case "$resp" in
	y*|Y*)
		vi /tmp/fstab
		;;

	*)
		;;
esac

echo ""
munge_fstab /tmp/fstab /tmp/fstab.shadow
mount_fs /tmp/fstab.shadow

install_sets $ALLSETS

# Copy in configuration information and make devices in target root.
(
	cd /tmp
	for file in fstab hostname.* hosts myname mygate resolv.conf; do
		if [ -f $file ]; then
			echo -n "Copying $file..."
			cp $file /mnt/etc/$file
			echo "done."
		fi
	done

	echo -n "Installing timezone link..."
	rm -f /mnt/etc/localtime
	ln -s /usr/share/zoneinfo/$TZ /mnt/etc/localtime
	echo "done."

	echo -n "Making devices..."
	pid=`twiddle`
	cd /mnt/dev
	sh MAKEDEV all
	kill $pid
	echo "done."

	echo -n "Copying kernel..."
	cp -p /netbsd /mnt/netbsd
	echo "done."

	md_installboot ${ROOTDISK}
)

unmount_fs /tmp/fstab.shadow

# Pat on the back.
md_congrats

# ALL DONE!
exit 0