sync to netbsd

1 files changed, 509 insertions, 183 deletions

diff --git a/distrib/miniroot/install.sub b/distrib/miniroot/install.sub
index a48d9a7155c..7ccea68a553 100644
--- a/distrib/miniroot/install.sub
+++ b/distrib/miniroot/install.sub
@@ -1,6 +1,5 @@
 #!/bin/sh
-#	$OpenBSD: install.sub,v 1.3 1996/06/29 05:54:16 tholo Exp $
-#	$NetBSD: install.sub,v 1.2 1996/02/28 00:47:43 thorpej Exp $
+#	$NetBSD: install.sub,v 1.5.2.8 1996/09/02 23:25:02 pk Exp $
 #
 # Copyright (c) 1996 The NetBSD Foundation, Inc.
 # All rights reserved.
@@ -37,14 +36,27 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 
-#	OpenBSD installation/upgrade script - common subroutines.
+#	NetBSD installation/upgrade script - common subroutines.
 
-VERSION=1.1A
-export VERSION				# XXX needed in subshell
 ROOTDISK=""				# filled in below
+VERSION=				# filled in automatically (see list)
+export VERSION
 
 ALLSETS="base comp etc games man misc text"	# default install sets
 UPGRSETS="base comp games man misc text"	# default upgrade sets
+THESETS=					# one of the above
+
+local_sets_dir=""			# Path searched for sets by install_sets
+					# on the local filesystems
+
+# decide upon an editor
+if [ X$EDITOR = X ]; then
+	if [ -x /usr/bin/vi ]; then
+		EDITOR=vi
+	else
+		EDITOR=ed
+	fi
+fi
 
 getresp() {
 	read resp
@@ -65,6 +77,8 @@ isin() {
 
 rmel() {
 # remove first argument from list formed by the remaining arguments
+	local	_a
+
 	_a=$1; shift
 	while [ $# != 0 ]; do
 		if [ "$_a" != "$1" ]; then
@@ -74,6 +88,83 @@ rmel() {
 	done
 }
 
+cutword () {
+# read a line of data, return Nth element.
+	local _a
+	local _n
+	local _oifs
+
+	# optional field separator
+	_oifs="$IFS"
+	case "$1" in
+		-t?*) IFS=${1#-t}; shift;;
+	esac
+
+	_n=$1
+	read _a; set -- $_a
+	IFS="$_oifs"
+	if [ "$1" = "" ]; then return; fi
+	eval echo \$$_n
+}
+
+cutlast () {
+# read a line of data, return last element. Equiv. of awk '{print $NF}'.
+	local _a
+	local _oifs
+
+	# optional field separator
+	_oifs="$IFS"
+	case "$1" in
+		-t?*) IFS=${1#-t}; shift;;
+	esac
+
+	read _a; set -- $_a
+	IFS="$_oifs"
+	if [ "$1" = "" ]; then return; fi
+	while [ "$#" -gt 10 ]; do shift 10; done
+	eval echo \$$#
+}
+
+firstchar () {
+# return first character of argument
+	local _a
+	_a=$1
+	while [ ${#_a} != 1 ]; do
+		_a=${_a%?}
+	done
+	echo $_a
+}
+
+basename () {
+	local _oifs
+	if [ "$1" = "" ]; then return; fi
+	_oifs="$IFS"
+	IFS="/"
+	set -- $1
+	IFS="$_oifs"
+	while [ "$#" -gt 10 ]; do shift 10; done
+	eval echo \$$#
+}
+
+dir_has_sets() {
+	# return true when the directory $1 contains a set for $2...$n
+	local _dir
+	local _file
+
+	_dir=$1; shift
+	for _file in $*
+	do
+		if [ -f $_dir/${_file}.tar.gz ]; then
+			return 0
+		fi
+		# Try for stupid msdos convention
+		if [ -f $_dir/${_file}.tgz ]; then
+			return 0
+		fi
+	done
+	return 1
+}
+
 twiddle() {
 # spin the propeller so we don't get bored
 	while : ; do  
@@ -84,24 +175,53 @@ twiddle() {
 	done > /dev/tty & echo $!
 }
 
-. install.md
-
-do_mfs_mount() {
-	# $1 is the mount point
-	# $2 is the size in DEV_BIZE blocks
-
-	umount $1 > /dev/null 2>&1
-	if ! mount_mfs -s $2 swap $1 ; then
-		cat << \__mfs_failed_1
+get_localdir() {
+	# $1 is relative mountpoint
+	local _mp
+	local _dir
 
-FATAL ERROR: Can't mount the memory filesystem.
-
-__mfs_failed_1
-		exit
-	fi
-
-	# Bleh.  Give mount_mfs a chance to DTRT.
-	sleep 2
+	_mp=$1
+	_dir=
+	while : ; do
+	    echo -n "Enter the pathname where the sets are stored [$_dir] "
+	    getresp "$_dir"
+	    _dir=$resp
+
+	    # Allow break-out with empty response
+	    if [ -z "$_dir" ]; then
+		echo -n "Are you sure you don't want to set the pathname? [n] "
+		getresp "n"
+		case "$resp" in
+			y*|Y*)
+				break
+				;;
+			*)
+				continue
+				;;
+		esac
+	    fi
+
+	    if dir_has_sets "$_mp/$_dir" $THESETS
+	    then
+		local_sets_dir="$_mp/$_dir"
+		break
+	    else
+		cat << __get_reldir_1
+The directory \"$local_sets_dir\" does not exist, or does not hold any of the
+upgrade sets.
+__get_reldir_1
+		echo -n "Re-enter pathname? [y] "
+		getresp "y"
+		case "$resp" in
+			y*|Y*)
+				;;
+			*)
+				local_sets_dir=""
+				break
+				;;
+		esac
+	    fi
+	done
 }
 
 getrootdisk() {
@@ -144,7 +264,7 @@ __labelmoredisks_1
 			;;
 
 		*)
-			if echo "$_DKDEVS" | grep "^$resp" > /dev/null ; then
+			if isin $resp $_DKDEVS ; then
 				md_labeldisk $resp
 			else
 				echo ""
@@ -165,10 +285,8 @@ addhostent() {
 		echo "127.0.0.1 localhost" > /tmp/hosts
 	fi
 
-	if grep "^$1 " /tmp/hosts > /dev/null; then
-		grep -v "^$1 " /tmp/hosts > /tmp/hosts.new
-		mv /tmp/hosts.new /tmp/hosts
-	fi
+	sed "/^$1 /d" < /tmp/hosts > /tmp/hosts.new
+	mv /tmp/hosts.new /tmp/hosts
 
 	echo "$1 $2 $2.$FQDN" >> /tmp/hosts
 }
@@ -178,9 +296,10 @@ addifconfig() {
 	# $2 - interface symbolic name
 	# $3 - interface IP address
 	# $4 - interface netmask
+	# $5 - (optional) interface link-layer directives
 
 	# Create a hostname.* file for the interface.
-	echo "inet $2 $4" > /tmp/hostname.$1
+	echo "inet $2 $4 NONE $5" > /tmp/hostname.$1
 
 	addhostent $3 $2
 }
@@ -230,13 +349,33 @@ __configurenetwork_1
 
 configure_ifs() {
 
+	local _up
+	local _interface_name
+	local _interface_ip
+	local _interface_mask
+	local _interface_symname
+	local _interface_extra
+
 	_interface_name=$1
 
+	set -- `ifconfig $_interface_name | sed -n '
+		1s/.*<UP,.*$/UP/p
+		1s/.*<.*>*$/DOWN/p
+		2s/inet//
+		2s/--> [0-9.][0-9.]*//
+		2s/netmask//
+		2s/broadcast//
+		2p'`
+
+	_up=$1
+	_interface_ip=$2
+	_interface_mask=$3
+
 	# Get IP address
 	resp=""		# force one iteration
 	while [ "X${resp}" = X"" ]; do
-		echo -n "IP address? "
-		getresp ""
+		echo -n "IP address? [$_interface_ip] "
+		getresp "$_interface_ip"
 		_interface_ip=$resp
 	done
 
@@ -251,24 +390,44 @@ configure_ifs() {
 	# Get netmask
 	resp=""		# force one iteration
 	while [ "X${resp}" = X"" ]; do
-		echo -n "Netmask? "
-		getresp ""
+		echo -n "Netmask? [$_interface_mask] "
+		getresp "$_interface_mask"
 		_interface_mask=$resp
 	done
 
+	echo "Your network interface might require additional link-layer"
+	echo "directives (like \`link0'). If this is the case you can enter"
+	echo "these at the next prompt."
+	echo ""
+	echo -n "Additional link-layer arguments? [$_interface_extra] "
+	getresp "$_interface_extra"
+	if [ "X${resp}" != X"" ]; then
+		_interface_extra=$resp
+	fi
+
 	# Configure the interface.  If it
 	# succeeds, add it to the permanent
 	# network configuration info.
-	ifconfig ${_interface_name} down
-	if ifconfig ${_interface_name} inet \
-	    ${_interface_ip} \
-	    netmask ${_interface_mask} up ; then
+	if [ $_up != "UP" ]; then
+		ifconfig ${_interface_name} down
+		if ifconfig ${_interface_name} inet \
+		    ${_interface_ip} \
+		    netmask ${_interface_mask} ${_interface_extra} up ; then
+			addifconfig \
+			    ${_interface_name} \
+			    ${_interface_symname} \
+			    ${_interface_ip} \
+			    ${_interface_mask} ${_interface_extra}
+			return 0
+		fi
+	else
+		echo "Interface ${_interface_name} is already active."
+		echo "Just saving configuration on new root filesystem."
 		addifconfig \
 		    ${_interface_name} \
 		    ${_interface_symname} \
 		    ${_interface_ip} \
-		    ${_interface_mask}
-		return 0
+		    ${_interface_mask} ${_interface_extra}
 	fi
 	return 1
 }
@@ -422,8 +581,8 @@ __install_ftp_2
 			break
 		fi
 
-		_ftp_file=`echo ${resp} | awk '{print $1}'`
-		echo "get ${_ftp_file} |\"tar -xzvpf -\"" >> \
+		_ftp_file=`echo ${resp} | cutword 1'`
+		echo "get ${_ftp_file} |\"tar --unlink -zxvpf -\"" >> \
 		    /tmp/ftp-script.sh
 	done
 
@@ -435,49 +594,57 @@ __install_ftp_2
 	echo "Extraction complete."
 }
 
-install_common_nfs_cdrom() {
-	# $1 - directory containing file
+install_from_mounted_fs() {
+	# $1 - directory containing installation sets
 	local _filename
-	local _setsdone
-	local _prev
+	local _sets
+	local _next
 	local _f
 
-	_sets=`(cd /mnt2/$1; ls *.tar.gz)`
-	if [ -z "$_sets" ]; then
-		echo "There are no OpenBSD install sets available in \"$1\""
+	_sets=""
+	if dir_has_sets $1 $THESETS; then
+		for _f in $THESETS ; do
+			if [ -f $1/${_f}.tar.gz ]; then
+				_sets="$_sets ${_f}.tar.gz"
+			elif [ -f $1/${_f}.tgz ]; then
+				_sets="$_sets ${_f}.tgz"
+			fi
+		done
+	else
+		echo "There are no NetBSD install sets available in \"$1\""
 		return
 	fi
 
-	_setsdone=""
 	while : ; do
 		echo "The following sets are available for extraction:"
 		echo "(marked sets have already been extracted)"
 		echo ""
 
-		_prev=""
+		_next=""
 		for _f in $_sets ; do
 			if isin $_f $_setsdone; then
 				echo -n "[X] "
+				_next=""
 			else
 				echo -n "    "
-				if [ -z "$_prev" ]; then _prev=$_f; fi
+				if [ -z "$_next" ]; then _next=$_f; fi
 			fi
 			echo $_f
 		done
 		echo ""
 
 		# Get the name of the file.
-		if [ "X$_prev" = "X" ]; then resp=n; else resp=y; fi
+		if [ "X$_next" = "X" ]; then resp=n; else resp=y; fi
 		echo -n "Continue extraction [$resp]?"
 		getresp "$resp"
 		if [ "$resp" = "n" ]; then
 			break
 		fi
 
-		echo -n "File name [$_prev]? "
-		getresp "$_prev"
+		echo -n "File name [$_next]? "
+		getresp "$_next"
 		_f=$resp
-		_filename="/mnt2/$1/$_f"
+		_filename="/$1/$_f"
 
 		# Ensure file exists
 		if [ ! -f $_filename ]; then
@@ -487,7 +654,7 @@ install_common_nfs_cdrom() {
 		fi
 
 		# Extract file
-		cat $_filename | (cd /mnt; tar -xzvpf -)
+		cat $_filename | (cd /mnt; tar --unlink -zxvpf -)
 		echo "Extraction complete."
 		_setsdone="$_f $_setsdone"
 
@@ -495,11 +662,17 @@ install_common_nfs_cdrom() {
 }
 
 install_cdrom() {
+	local _drive
+	local _partition_range
+	local _partition
+	local _fstype
+	local _directory
+
 	# Get the cdrom device info
 	cat << \__install_cdrom_1
 
 The following CD-ROM devices are installed on your system; please select
-the CD-ROM device containing the installation media:
+the CD-ROM device containing the partition with the installation sets:
 
 __install_cdrom_1
 	_CDDEVS=`md_get_cddevs`
@@ -515,7 +688,7 @@ __install_cdrom_1
 
 		*)
 			if isin $resp $_CDDEVS ; then
-				_cdrom_drive=$resp
+				_drive=$resp
 			else
 				echo ""
 				echo "The CD-ROM $resp does not exist."
@@ -526,13 +699,14 @@ __install_cdrom_1
 	esac
 
 	# Get partition
+	_partition_range=`md_get_partition_range`
 	resp=""		# force one iteration
 	while [ "X${resp}" = X"" ]; do
 		echo -n "Partition? [c] "
 		getresp "c"
 		case "$resp" in
-			[a-h])
-				_cdrom_partition=$resp
+			$_partition_range)
+				_partition=$resp
 				;;
 
 			*)
@@ -556,7 +730,7 @@ __install_cdrom_2
 		getresp "cd9660"
 		case "$resp" in
 			cd9660|ffs)
-				_cdrom_filesystem=$resp
+				_fstype=$resp
 				;;
 
 			*)
@@ -567,8 +741,8 @@ __install_cdrom_2
 	done
 
 	# Mount the CD-ROM
-	if ! mount -t ${_cdrom_filesystem} -o ro \
-	    /dev/${_cdrom_drive}${_cdrom_partition} /mnt2 ; then
+	if ! mount -t ${_filesystem} -o ro \
+	    /dev/${_drive}${_partition} /mnt2 ; then
 		echo "Cannot mount CD-ROM drive.  Aborting."
 		return
 	fi
@@ -577,12 +751,136 @@ __install_cdrom_2
 	resp=""		# force one iteration
 	while [ "X${resp}" = X"" ]; do
 		echo "Enter the directory relative to the mount point that"
-		echo -n "contains the file. [${_cdrom_directory}] "
-		getresp "${_cdrom_directory}"
+		echo -n "contains the file. [${_directory}] "
+		getresp "${_directory}"
+	done
+	_directory=$resp
+
+	install_from_mounted_fs /mnt2/${_directory}
+	umount -f /mnt2 > /dev/null 2>&1
+}
+
+mount_a_disk() {
+	# Mount a disk on /mnt2. The set of disk devices to choose from
+	# is $_DKDEVS.
+	# returns 0 on failure.
+
+	local _drive
+	local _partition_range
+	local _partition
+	local _fstype
+	local _fsopts
+	local _directory
+	local _md_fstype
+	local _md_fsopts
+
+	getresp "abort"
+	case "$resp" in
+		abort)
+			echo "Aborting."
+			return 0
+			;;
+
+		*)
+			if isin $resp $_DKDEVS ; then
+				_drive=$resp
+			else
+				echo ""
+				echo "The disk $resp does not exist."
+				echo "Aborting."
+				return 0
+			fi
+			;;
+	esac
+
+	# Get partition
+	_partition_range=`md_get_partition_range`
+	resp=""		# force one iteration
+	while [ "X${resp}" = X"" ]; do
+		echo -n "Partition? [d] "
+		getresp "d"
+		case "$resp" in
+			$_partition_range)
+				_partition=$resp
+				;;
+
+			*)
+				echo "Invalid response: $resp"
+				resp=""		# force loop to repeat
+				;;
+		esac
+	done
+
+	# Ask for filesystem type
+	cat << \__mount_a_disk_2
+
+The following filesystem types are supported:
+	1) ffs
+__mount_a_disk_2
+	_md_fstype=`md_native_fstype`
+	_md_fsopts=`md_native_fsopts`
+	if [ ! -z "$_md_fstype" ]; then
+		echo "	2) $_md_fstype"
+	else
+		_md_fstype="_undefined_"
+	fi
+	resp=""		# force one iteration
+	while [ "X${resp}" = X"" ]; do
+		echo -n "Which filesystem type? [ffs] "
+		getresp "ffs"
+		case "$resp" in
+			ffs)
+				_fstype=$resp
+				_fsopts="ro"
+				;;
+			$_md_fstype)
+				_fstype=$resp
+				_fsopts=$_md_fsopts
+				;;
+			*)
+				echo "Invalid response: $resp"
+				resp=""		# force loop to repeat
+				;;
+		esac
+	done
+
+	# Mount the disk
+	if ! mount -t ${_fstype} -o $_fsopts \
+	    /dev/${_drive}${_partition} /mnt2 ; then
+		echo "Cannot mount disk.  Aborting."
+		return 0
+	fi
+	return 1
+}
+
+install_disk() {
+	local _directory
+
+	cat << \__install_disk_1
+
+The following disk devices are installed on your system; please select
+the disk device containing the partition with the installation sets:
+
+__install_disk_1
+	_DKDEVS=`md_get_diskdevs`
+	echo    "$_DKDEVS"
+	echo	""
+	echo -n	"Which is the disk with the installation sets? [abort] "
+
+	if mount_a_disk ; then
+		return
+	fi
+
+	# Get the directory where the file lives
+	resp=""		# force one iteration
+	while [ "X${resp}" = X"" ]; do
+		echo "Enter the directory relative to the mount point that"
+		echo -n "contains the file. [${_directory}] "
+		getresp "${_directory}"
 	done
-	_cdrom_directory=$resp
+	_directory=$resp
 
-	install_common_nfs_cdrom ${_cdrom_directory}
+	install_from_mounted_fs /mnt2/${_directory}
 	umount -f /mnt2 > /dev/null 2>&1
 }
 
@@ -633,11 +931,13 @@ install_nfs() {
 	done
 	_nfs_directory=$resp
 
-	install_common_nfs_cdrom ${_nfs_directory}
+	install_from_mounted_fs /mnt2/${_nfs_directory}
 	umount -f /mnt2 > /dev/null 2>&1
 }
 
 install_tape() {
+	local _xcmd
+
 	# Get the name of the tape from the user.
 	cat << \__install_tape_1
 
@@ -709,31 +1009,42 @@ __install_tape_2
 		echo -n "Which way is it? [1] "
 		getresp "1"
 		case "$resp" in
-			1)
-				(
-					cd /mnt
-					dd if=$TAPE | tar -xzvpf -
-				)
-				;;
+		1)
+			_xcmd="tar --unlink -zxvpf -"
+			;;
 
-			2)
-				(
-					cd /mnt
-					dd if=$TAPE | tar -xzvpf -
-				)
-				;;
+		2)
+			_xcmd="tar --unlink -xvpf -"
+			;;
 
-			*)
-				echo "Invalid response: $resp."
-				resp=""		# force loop to repeat
-				;;
+		*)
+			echo "Invalid response: $resp."
+			resp=""		# force loop to repeat
+			;;
 		esac
+		( cd /mnt; dd if=$TAPE | $_xcmd )
 	done
 	echo "Extraction complete."
 }
 
 get_timezone() {
 	local _a
+	local _zonepath
+
+	#
+	# If the zoneinfo is not on the installation medium or on the
+	# installed filesystem, set TZ to GMT and return immediatly.
+	#
+	if [ ! -e /usr/share/zoneinfo -a ! -e /mnt/usr/share/zoneinfo ]; then
+		TZ=GMT
+		return
+	fi
+	if [ ! -d /usr/share/zoneinfo ]; then
+		_zonepath=/mnt
+	else
+		_zonepath=""
+	fi
+		
 cat << \__get_timezone_1
 
 Select a time zone for your location. Timezones are represented on the
@@ -747,8 +1058,8 @@ at the prompts below.
 
 __get_timezone_1
 	if [ X$TZ = X ]; then
-		TZ=`ls -l /etc/timezone 2>/dev/null | awk '{print $NF}' |
-			sed -e 's?/usr/share/zoneinfo/??'`
+		TZ=`ls -l /mnt/etc/localtime 2>/dev/null | cutlast`
+		TZ=${TZ#/usr/share/zoneinfo/}
 	fi
 	while :; do
 		echo -n	"What timezone are you in [\`?' for list] [$TZ]? "
@@ -760,25 +1071,25 @@ __get_timezone_1
 			break;
 			;;
 		"?")
-			ls /usr/share/zoneinfo
+			ls ${_zonepath}/usr/share/zoneinfo
 			;;
 		*)
 			_a=$resp
-			while [ -d /usr/share/zoneinfo/$_a ]; do
+			while [ -d ${_zonepath}/usr/share/zoneinfo/$_a ]; do
 				echo -n "There are several timezones available"
 				echo " within zone '$_a'"
 				echo -n "Select a sub-timezone [\`?' for list]: "
 				getresp ""
 				case "$resp" in
-				"?") ls /usr/share/zoneinfo/$_a ;;
+				"?") ls ${_zonepath}/usr/share/zoneinfo/$_a ;;
 				*)	_a=${_a}/${resp}
-					if [ -f /usr/share/zoneinfo/$_a ]; then
+					if [ -f ${_zonepath}/usr/share/zoneinfo/$_a ]; then
 						break;
 					fi
 					;;
 				esac
 			done
-			if [ -f /usr/share/zoneinfo/$_a ]; then
+			if [ -f ${_zonepath}/usr/share/zoneinfo/$_a ]; then
 				TZ="$_a"
 				echo "You have selected timezone \"$_a\"".
 				break 2
@@ -791,113 +1102,107 @@ __get_timezone_1
 
 install_sets()
 {
-# arguments: the base names of the distribution sets to consider
-# Ask the user which media to load the distribution from.
-cat << \__install_sets_1
+	local _yup
+	_yup="FALSE"
+
+	# Ask the user which media to load the distribution from.
+	cat << \__install_sets_1
 
 It is now time to extract the installation sets onto the hard disk.
-Make sure The sets are either on a local device (i.e. tape, CD-ROM) or on a
+Make sure the sets are either on a local device (i.e. tape, CD-ROM) or on a
 network server.
 
 __install_sets_1
-if [ -f $RELDIR/$1.tar.gz ]; then
-	echo -n "Install from sets in the current root filesystem? [y] "
-	getresp "y"
-	case "$resp" in
-	y*|Y*)
-		for _f do
-			if [ ! -f $RELDIR/${_f}.tar.gz ]; then
-				continue
-			fi
-			echo -n "Install \"$_f\" ? [y]"
-			getresp "y"
+
+	if [ "X$local_sets_dir" != "X" ]; then
+		install_from_mounted_fs ${local_sets_dir}
+		if [ X"$_setsdone" != X ]; then
+			_yup="TRUE"
+		fi
+	fi
+
+	# Go on prodding for alternate locations
+	resp=""		# force at least one iteration
+	while [ X"${resp}" = X ]; do
+		# If _yup is not FALSE, it means that we extracted sets above.
+		# If that's the case, bypass the menu the first time.
+		if [ X"$_yup" = X"FALSE" ]; then
+			echo -n	"Install from (f)tp, (t)ape, (C)D-ROM, (N)FS"
+			echo -n " or local (d)isk? "
+			getresp ""
 			case "$resp" in
-			y*|Y*)
-			     cat $RELDIR/${_f}.tar.gz |
-					(cd /mnt; tar -xzvpf -)
-				_yup="TRUE"
-				echo "Extraction complete."
+			d*|D*)
+				install_disk
+				;;
+			f*|F*)
+				install_ftp
+				;;
+			t*|T*)
+				install_tape
+				;;
+			c*|C*)
+				install_cdrom
+				;;
+			n*|N*)
+				install_nfs
 				;;
 			*)
-				echo "Skipping \"$_f\"."
+				echo "Invalid response: $resp"
+				resp=""
 				;;
 			esac
-		done
-		;;
-	*)
-		_yup="FALSE"
-		;;
-	esac
-else
-	_yup="FALSE"
-fi
+		else
+			_yup="FALSE"	# So we'll ask next time
+		fi
 
-# Go on prodding for alternate locations
-resp=""		# force at least one iteration
-while [ "X${resp}" = X"" ]; do
-	# If _yup is not FALSE, it means that we extracted sets above.
-	# If that's the case, bypass the menu the first time.
-	if [ X"$_yup" = X"FALSE" ]; then
-		echo -n	"Install from (f)tp, (t)ape, (C)D-ROM, or (N)FS? [f] "
-		getresp "f"
+		# Give the user the opportunity to extract more sets. They
+		# don't necessarily have to come from the same media.
+		echo	""
+		echo -n	"Extract more sets? [n] "
+		getresp "n"
 		case "$resp" in
-		f*|F*)
-			install_ftp
-			;;
-
-		t*|T*)
-			install_tape
-			;;
-
-		c*|C*)
-			install_cdrom
-			;;
-
-		n*|N*)
-			install_nfs
+		y*|Y*)
+			# Force loop to repeat
+			resp=""
 			;;
 
 		*)
-			echo "Invalid response: $resp"
-			resp=""
 			;;
 		esac
-	else
-		_yup="FALSE"	# So we'll ask next time
-	fi
-
-	# Give the user the opportunity to extract more sets.  They don't
-	# necessarily have to come from the same media.
-	echo	""
-	echo -n	"Extract more sets? [n] "
-	getresp "n"
-	case "$resp" in
-	y*|Y*)
-		# Force loop to repeat
-		resp=""
-		;;
-
-	*)
-		;;
-	esac
-done
+	done
 }
 
 munge_fstab()
 {
 	local _fstab
 	local _fstab_shadow
+	local _dev
+	local _mp
+	local _fstype
+	local _rest
+
 	# Now that the 'real' fstab is configured, we munge it into a 'shadow'
 	# fstab which we'll use for mounting and unmounting all of the target
 	# filesystems relative to /mnt.  Mount all filesystems.
 	_fstab=$1
 	_fstab_shadow=$2
-	awk '{
-		if ($2 == "/")
-		    printf("%s /mnt %s %s %s %s\n", $1, $3, $4, $5, $6)
+	( while read _dev _mp _fstype _rest; do
+		# Skip comment lines
+		case "$_dev" in
+			\#*)	continue;;
+			*)	;;
+		esac
+		# and some filesystem types (like there are swap,kernfs,...)
+		case "$_fstype" in
+			ffs|ufs|nfs)	;;
+			*)	continue;;
+		esac
+		if [ "$_mp" = "/" ]; then
+			echo $_dev /mnt $_fstype $_rest
 		else
-		    printf("%s /mnt%s %s %s %s %s\n", $1, $2, $3, $4, $5, $6)
-	}' < $_fstab > $_fstab_shadow
+			echo $_dev /mnt$_mp $_fstype $_rest
+		fi
+	    done ) < $_fstab > $_fstab_shadow
 }
 
 mount_fs()
@@ -910,10 +1215,11 @@ mount_fs()
 	_fstab=$1
 
 	( while read line; do
-		_dev=`echo $line | awk '{print $1}'`
-		_mp=`echo $line | awk '{print $2}'`
-		_fstype=`echo $line | awk '{print $3}'`
-		_opt=`echo $line | awk '{print $4}'`
+		set -- $line
+		_dev=$1
+		_mp=$2
+		_fstype=$3
+		_opt=$4
 
 		# If not the root filesystem, make sure the mount
 		# point is present.
@@ -943,24 +1249,40 @@ __mount_filesystems_1
 unmount_fs()
 {
 	# Unmount all filesystems and check their integrity.
-	# $1 is a file in fstab format
+	# Usage: [-fast] <fstab file>
+	local _fast
 	local _fstab
+	local _pid
 
-	_fstab=$1
+	if [ "$1" = "-fast" ]; then
+		_fast=1
+		_fstab=$2
+	else
+		_fast=0
+		_fstab=$1
+	fi
+
+	if [ ! \( -f $_fstab -a -s $_fstab \) ]; then
+		echo "fstab empty" > /dev/tty
+		return
+	fi
 
-	echo -n	"Syncing disks..."
-	pid=`twiddle`
-	sync; sleep 4; sync; sleep 2; sync; sleep 2
-	kill $pid
-	echo	"done."
+	if [ $_fast = 0 ]; then
+		echo -n	"Syncing disks..."
+		_pid=`twiddle`
+		sync; sleep 4; sync; sleep 2; sync; sleep 2
+		kill $_pid
+		echo	"done."
+	fi
 
 	(
 		_devs=""
 		_mps=""
 		# maintain reverse order
 		while read line; do
-			_devs="`echo $line | awk '{print $1}'` ${_devs}"
-			_mps="`echo $line | awk '{print $2}'` ${_mps}"
+			set -- $line
+			_devs="$1 ${_devs}"
+			_mps="$2 ${_mps}"
 		done
 		echo -n "Umounting filesystems... "
 		for _mp in ${_mps}; do
@@ -969,6 +1291,9 @@ unmount_fs()
 		done
 		echo "Done."
 
+		if [ $_fast = 0 ]; then
+			exit
+		fi
 		echo "Checking filesystem integrity..."
 		for _dev in ${_devs}; do
 			echo  "${_dev}"
@@ -990,8 +1315,9 @@ check_fs()
 		_devs=""
 		_mps=""
 		while read line; do
-			_devs="`echo $line | awk '{print $1}'` ${_devs}"
-			_mps="`echo $line | awk '{print $2}'` ${_mps}"
+			set -- $line
+			_devs="$1 ${_devs}"
+			_mps="$2 ${_mps}"
 		done
 
 		echo "Checking filesystem integrity..."