path: root/distrib/miniroot/install.sub

#!/bin/sh
#	$OpenBSD: install.sub,v 1.49 1997/10/29 21:38:17 deraadt 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.
#
# 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.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
#        This product includes software developed by the NetBSD
#        Foundation, Inc. and its contributors.
# 4. Neither the name of The NetBSD Foundation nor the names of its
#    contributors may be used to endorse or promote products derived
#    from this software without specific prior written permission.
#
# 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 installation/upgrade script - common subroutines.

ROOTDISK=""				# filled in below
VERSION=
VERSION_MAJOR=$(( $VERSION / 10 ))
VERSION_MINOR=$(( $VERSION % 10 ))
export VERSION VERSION_MAJOR VERSION_MINOR

ALLSETS="base etc misc comp text man game"	# default install sets
UPGRSETS="base misc comp text man game"		# default upgrade sets
SNAPSETS="bin dev etc games man misc sbin text \
	  usr.bin usr.binutils usr.games usr.include \
	  usr.lib usr.libexec usr.misc usr.sbin usr.share var"
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
	export EDITOR
fi

# Please don't use the 1 of n form below, good idea, wrong implementation!
# get a reponse with default[s]
getresp() {
	valid="false"
	while [ "X$valid" = "Xfalse" ]; do
		read resp
		if [ "X$resp" = "X" ]; then
			resp=$1
		fi
		if [ $# -gt 1 ]; then
			for i in $@; do
				if [ "X$resp" = "X$i" ]; then
					valid="true"
				fi
			done
		else
			valid="true"
		fi
		if [ "X$valid" = "Xfalse" ]; then
			echo "Try again: Enter one of [$@]"
		fi
	done	
}

isin() {
# test the first argument against the remaining ones, return succes on a match
	local	_a

	_a=$1; shift
	while [ $# != 0 ]; do
		if [ "$_a" = "$1" ]; then return 0; fi
		shift
	done
	return 1
}

rmel() {
# remove first argument from list formed by the remaining arguments
	local	_a

	_a=$1; shift
	while [ $# != 0 ]; do
		if [ "$_a" != "$1" ]; then
			echo "$1";
		fi
		shift
	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}${VERSION}.tar.gz ]; then
			return 0
		fi
		# Try for stupid msdos convention
		if [ -f $_dir/${_file}${VERSION}.tgz ]; then
			return 0
		fi
		# Special check for kernel
		if [ $_file = "kernel" -a -f $_dir/bsd ]; then
			return 0
		fi
	done
	return 1
}

list_has_sets() {
	# return true when the list $1 contains a set, given dir $2 for $3...$n
	local _list
	local _file

	_list=$1; shift
	for _file in $*
	do
		if isin ${_file}${VERSION}.tar.gz $_list; then
			return 0
		fi
		# Try for stupid msdos convention
		if isin ${_file}${VERSION}.tgz $_list; then
			return 0
		fi
		# Special check for kernel
		if test $_file = "kernel" && isin bsd $_list; then
			return 0
		fi
	done
	return 1
}

ftp_list_files() {
	# log in via ftp to host $1 as user $2 with password $3
	# and return a list of all files in the directory $4 on stdout
	local _host
	local _user
	local _pass
	local _dir

	_host=$1; shift
	_user=$1; shift
	_pass=$1; shift
	_dir=$1; shift

	ftp -V -n $_host  <<__ptf
user $_user $_pass
cd $_dir
ls
quit
__ptf
}

twiddle() {
# spin the propeller so we don't get bored
	while : ; do  
		sleep 1; echo -n "/";
		sleep 1; echo -n "-";
		sleep 1; echo -n "\\";
		sleep 1; echo -n "|";
	done > /dev/tty & echo $!
}

get_localdir() {
	# $1 is relative mountpoint
	local _mp
	local _dir

	_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() {
	cat << \__getrootdisk_1

The installation program needs to know which disk to consider the root disk.
Note the unit number may be different than the unit number you used in the
boot program (especially on a PC with multiple disk controllers).
Available disks are:

__getrootdisk_1
	_DKDEVS=`md_get_diskdevs`
	echo	"$_DKDEVS"
	echo	""
	echo -n	"Which disk is the root disk? "
	getresp ""
	if isin $resp $_DKDEVS ; then
		ROOTDISK="$resp"
	else
		echo ""
		echo "The disk $resp does not exist."
		ROOTDISK=""
	fi
}

labelmoredisks() {
	cat << \__labelmoredisks_1

You may label the following disks:

__labelmoredisks_1
	echo "$_DKDEVS"
	echo	""
	echo -n	"Label which disk? [done] "
	getresp "done"
	case "$resp" in
		done)
			;;

		*)
			if isin $resp $_DKDEVS ; then
				md_labeldisk $resp
			else
				echo ""
				echo "The disk $resp does not exist."
			fi
			;;
	esac
}

addhostent() {
	# $1 - IP address
	# $2 - symbolic name

	# Create an entry in the hosts table.  If no host table
	# exists, create one.  If the IP address already exists,
	# replace it's entry.
	if [ ! -f /tmp/hosts ]; then
		echo "127.0.0.1 localhost" > /tmp/hosts
	fi

	sed "/^$1 /d" < /tmp/hosts > /tmp/hosts.new
	mv /tmp/hosts.new /tmp/hosts

	echo "$1 $2 $2.$FQDN" >> /tmp/hosts
}

addifconfig() {
	# $1 - interface name
	# $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 NONE $5" > /tmp/hostname.$1

	addhostent $3 $2
}

configurenetwork() {
	local _ifsdone
	local _ifs
	local _ouranswer
	local _reprompt

	_IFS=`md_get_ifdevs`
	_ifsdone=""
	_ouranswer=""
	_reprompt=1
	resp=""		# force at least one iteration
	while [ "X${resp}" != X"done" ]; do
		if [ $_reprompt = 1 ]; then
			cat << \__configurenetwork_1

You may configure the following network interfaces (the interfaces
marked with [X] have been succesfully configured):

__configurenetwork_1

			for _ifs in $_IFS; do
				if isin $_ifs $_ifsdone ; then
					echo -n "	[X] "
				else
					echo -n "	[ ] "
				fi
				echo $_ifs
			done
			echo	""
		fi
		echo -n	"Configure which interface? (or, enter 'done') [$_ouranswer] "
		getresp "$_ouranswer"
		case "$resp" in
		"done")
			;;
		"")
			_reprompt=0
			;;
		*)
			_ifs=$resp
			if isin $_ifs $_IFS ; then
				if configure_ifs $_ifs ; then
					_ifsdone="$_ifs $_ifsdone"
				fi
			else
				echo "Invalid response: \"$resp\" is not in list"
			fi
			_ouranswer="done"
			_reprompt=1
			;;
		esac

	done
}

configure_ifs() {

	local _up
	local _interface_name
	local _interface_ip
	local _interface_mask
	local _interface_symname
	local _interface_extra
	local _hostname

	_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${resp}" = X"" ]; do
		echo -n "IP address? [$_interface_ip] "
		getresp "$_interface_ip"
		_interface_ip=$resp
	done

	# Get symbolic name
	_hostname=`hostname`
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		echo -n "Symbolic (host) name? [$_hostname] "
		getresp "$_hostname"
		_interface_symname=$resp
	done

	# Get netmask
	resp=""
	if [ "X${_interface_mask}" = X"" ]; then
		_interface_mask=255.255.255.0
	fi
	while [ "X${resp}" = X"" ]; do
		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.  Values used by some drivers are:"
	echo "    -link0            BNC"
	echo "    link0 -link1      AUI"
	echo "    link0 link1       UTP"
	echo "(But please keep in mind not all drivers use flags like this)."
	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.
	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} \
		    ${_interface_mask} "${_interface_extra}"
	fi
	return 1
}

# Much of this is gratuitously stolen from /etc/netstart.
enable_network() {

	# Set up the hostname.
	if [ ! -f /mnt/etc/myname ]; then
		echo "ERROR: no /etc/myname!"
		return 1
	fi
	hostname=`cat /mnt/etc/myname`
	hostname $hostname

	# configure all the interfaces which we know about.
(
	tmp="$IFS"
	IFS="$IFS."
	set -- `echo /mnt/etc/hostname*`
	IFS=$tmp
	unset tmp

	while [ $# -ge 2 ] ; do
		shift		# get rid of "hostname"
		(
			read af name mask bcaddr extras
			read dt dtaddr

			if [ ! -n "$name" ]; then
		    echo "/etc/hostname.$1: invalid network configuration file"
				exit
			fi

			cmd="ifconfig $1 $af $name "
			if [ "${dt}" = "dest" ]; then cmd="$cmd $dtaddr"; fi
			if [ -n "$mask" ]; then cmd="$cmd netmask $mask"; fi
			if [ -n "$bcaddr" -a "X$bcaddr" != "XNONE" ]; then
				cmd="$cmd broadcast $bcaddr";
			fi
			cmd="$cmd $extras"

			$cmd
		) < /mnt/etc/hostname.$1
		shift
	done
)

	# set the address for the loopback interface
	ifconfig lo0 inet localhost

	# use loopback, not the wire
	route add $hostname localhost

	# /etc/mygate, if it exists, contains the name of my gateway host
	# that name must be in /etc/hosts.
	if [ -f /mnt/etc/mygate ]; then
		route delete default > /dev/null 2>&1
		route add default `cat /mnt/etc/mygate`
	fi

	# enable the resolver, if appropriate.
	if [ -f /mnt/etc/resolv.conf ]; then
		_resolver_enabled="TRUE"
		cp /mnt/etc/resolv.conf /tmp/resolv.conf.shadow
	fi

	# Display results...
	echo	"Network interface configuration:"
	ifconfig -a

	echo	""

	if [ "X${_resolver_enabled}" = X"TRUE" ]; then
		route show
		echo	""
		echo	"Resolver enabled."
	else
		route -n show
		echo	""
		echo	"Resolver not enabled."
	fi

	return 0
}

install_url() {
	# Get several parameters from the user, and xfer
	# files from the server.
	# Note:	_ftp_server_ip, _ftp_server_dir, _ftp_server_login,
	#	_ftp_server_password, and _ftp_passive must be global.

	local _sets
	local _f
	local _file_list
	local _get_files
	local _failed_files
	local _osetsdone
	local _url_type

	# Is this an ftp or http install?
	_url_type=$1; shift

	echo
	echo "This is an automated ${_url_type}-based installation process.  You will be asked"
	echo "questions and then the files will be retrieved iteratively via ftp(1)."
	echo
	    
	# Proxy the connections?
	if [ "X${_proxy_host}" = X"" ]; then
		_proxy_host=none
	fi
	echo -n "HTTP/FTP proxy URL? (if you use a proxy) [${_proxy_host}] "
	getresp "${_proxy_host}"
	if [ "X${resp}" = X"none" ]; then
		unset _proxy_host ftp_proxy http_proxy
	else
		_proxy_host=$resp
		export ftp_proxy=${_proxy_host}
		export http_proxy=${_proxy_host}
	fi
	if [ "${_url_type}" = "ftp" -a "X$ftp_proxy" = "X" ]; then
		# Use passive mode ftp? (incompatible with proxy)
		case "${_ftp_passive}" in
			-p)	resp=y ;;
			*)	resp=n ;;
		esac
		echo -n "Do you want to use passive ftp? [${resp}] "
		getresp "${resp}"
		case "$resp" in
			y*|Y*)	_ftp_passive=-p ;;
			*)	unset _ftp_passive ;;
		esac
	fi

	# Provide a list of possible servers
	echo -n "Do you want a list of potential ${_url_type} servers? [y] "
	getresp "y"
	case "$resp" in
	n*|N*) ;;
	*)
		ftp ${_ftp_passive} -V -a ftp://ftp.openbsd.org/pub/OpenBSD/${VERSION_MAJOR}.${VERSION_MINOR}/ftplist | grep "^${_url_type}:"
		;;
	esac

	# Get server IP address
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		eval echo -n "Server IP address or hostname? [\$_${_url_type}_server_ip]\ "
		eval getresp "\$_${_url_type}_server_ip"
		eval _${_url_type}_server_ip=$resp
	done

	# Get server directory
	if [ "${_url_type}" = "ftp" -a "X${_ftp_server_dir}" = X"" ]; then
		# Default ftp dir
		_ftp_server_dir="pub/OpenBSD/${VERSION_MAJOR}.${VERSION_MINOR}/${ARCH}"
	fi
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		eval echo -n "Server directory? [\$_${_url_type}_server_dir]\ "
		eval getresp "\$_${_url_type}_server_dir"
		eval _${_url_type}_server_dir=$resp
	done

	if [ "${_url_type}" = "ftp" ]; then
		# Need default values even if we proxy ftp...
		if [ "X${_ftp_server_login}" = X"" ]; then
			_ftp_server_login=anonymous
		fi
		if [ "X${_ftp_server_password}" = X"" ]; then
			_ftp_server_password=root@`hostname`.${FQDN}
		fi

		if [ "X${ftp_proxy}" = X"" ]; then
			# Get login name
			resp=""		# force one iteration
			while [ "X${resp}" = X"" ]; do
				echo -n "Login? [${_ftp_server_login}] "
				getresp "${_ftp_server_login}"
				_ftp_server_login=$resp 
			done

			# Get password
			resp=""		# force one iteration
			while [ "X${resp}" = X"" ]; do
				echo -n "Password? [${_ftp_server_password}] "
				getresp "${_ftp_server_password}"
				_ftp_server_password=$resp
			done
		fi
	fi

	# Get list of files from the server.
	# XXX - check for nil $_file_list and deal
	if [ "${_url_type}" = "ftp" -a "X${ftp_proxy}" = X"" ]; then
		_file_list=`ftp_list_files "$_ftp_server_ip" "$_ftp_server_login" "$_ftp_server_password" "$_ftp_server_dir"`
	else
		# Assumes index file is "index.txt" for http (or proxy)
		# We can't use index.html since the format is server-dependent
		_file_list=`eval ftp -V ${_url_type}://\\$_${_url_type}_server_ip/\\$_${_url_type}_server_dir/index.txt | sed 's/
//'`
	fi

	_sets=""
	if list_has_sets "$_file_list" $THESETS; then
		for _f in $THESETS ; do
			if [ "X${_f}" = "Xkernel" ]; then
				if isin bsd $_file_list; then
					_kernel=bsd
				fi
			elif isin ${_f}${VERSION}.tar.gz $_file_list; then
				_sets="$_sets ${_f}${VERSION}.tar.gz"
			elif isin ${_f}${VERSION}.tgz $_file_list; then
				_sets="$_sets ${_f}${VERSION}.tgz"
			fi
		done
	else
		eval echo "There are no OpenBSD install sets available in \"\$_${_url_type}_server_dir\"."
		echo -n "Search for *.tar.gz and *.tgz files? [y] "
		getresp "y"
		case "$resp" in
			n*|N*)	return ;;
			*)	;;
		esac
		# *.tar.gz and *.tgz are possible sets
		_sets=""
		_kernel=""
		for _f in ${_file_list} ; do
			case "$_f" in
			    *.tar.gz|*.tgz)	_sets="$_sets ${_f}"
			esac
		done
		if [ "X${_sets}" = X"" ]; then
			echo "There are no *.tar.gz or *.tgz files in that dir."
			echo -n "See a directory listing? [y] "
			getresp "y"
			case "$resp" in
				n*|N*)	return ;;
				*)	;;
			esac
			echo ""
			echo "${_file_list}"
			echo ""
			return
		else
			echo "Adding *.tar.gz and *.tgz files to selector."
		fi
	fi

	# Yes, all those blackslashes really are necesary...
	eval echo "\\\\n"\
"You will now be asked for files to extract.  In addition to the\\\\n"\
"files listed in the selector you may enter any file located at\\\\n"\
"\$_${_url_type}_server_ip:\$_${_url_type}_server_dir.  You can also enter\\\\n"\
"'all' to install all the standard sets, or 'list' to list the\\\\n"\
"files avilable at \$_${_url_type}_server_ip:\$_${_url_type}_server_dir.\\\\n"\
"When you are done selecting files, enter 'done'.\\\\n"\
"Some of these sets are required for your ${MODE} and some are optional.\\\\n"\
"Consult the intallation notes if you are not sure which sets are required!\\\\n"

	_osetsdone="$_setsdone"
	while : ; do
		echo ""
		echo "The following sets are available for extraction."
		echo "Enter filename, \`list', \`all', or \`done'."
		echo ""

		_next=""
		for _f in $_sets $_kernel ; do
			if isin $_f $_setsdone ; then
				echo -n "	[X] "
				_next=""
			else
				echo -n "	[ ] "
				if [ -z "$_next" ]; then
				    _next=$_f
				fi
			fi
			echo $_f
		done

		# Get the name of the file.
		echo -n "File name [$_next]? "
		getresp "$_next"
		if [ "X${resp}" = X"done" ]; then
			break
		elif [ "X${resp}" = X"list" ]; then
			echo ""
			eval echo "\$_${_url_type}_server_dir:"
			echo "${_file_list}"
			continue
		elif [ "X${resp}" = X"all" ]; then
			# XXX - setting _setsdone like this
			#       is not entirely correct.
			_get_files="$_sets $_kernel"
			_setsdone="$_sets $_kernel"
			break
		fi
		_f=$resp

		# Ensure file exists
		if ! isin $_f $_file_list ; then
			eval echo "File \$_${_url_type}_server_dir/$_f does not exist.  Check to make"
			echo "sure you entered the information properly."
			continue
		fi

		# Add file to extraction list
		_get_files="${_get_files} $_f"
		_setsdone="$_f $_setsdone"
	done

	# User may have said "done" without selecting any files
	if [ "X${_get_files}" = X"" ]; then
		return
	fi

	echo
	echo "Fetching files via ${_url_type} may take a long time, especially over a slow network"
	echo -n "connection.  Ready to download files? [y] "
	getresp "y"
	case "$resp" in
		y*|Y*)
			;;
		*)
			_setsdone="$_osetsdone"
			return
			;;
	esac

	# Download the files one at a time and keep track of which ones failed
	while test -n "${_get_files}" ; do
		_failed_files=""
		for _f in $_get_files ; do
			echo ""
			if [ "X${_f}" = "X${_kernel}" ]; then
				if [ "${_url_type}" = "ftp" -a "X${ftp_proxy}" = X"" ]; then
					( cd /mnt ; ftp ${_ftp_passive} -V ftp://${_ftp_server_login}:${_ftp_server_password}@${_ftp_server_ip}/${_ftp_server_dir}/${_f} )
				else
					( cd /mnt ; eval ftp -V ${_url_type}://\$_${_url_type}_server_ip/\$_${_url_type}_server_dir/${_f} )
				fi
			else
				if [ "${_url_type}" = "ftp" -a "X${ftp_proxy}" = X"" ]; then
					( cd /mnt ; ftp ${_ftp_passive} -V ftp://${_ftp_server_login}:${_ftp_server_password}@${_ftp_server_ip}/${_ftp_server_dir}/${_f} | tar zxvpf - )
				else
					( cd /mnt ; eval ftp -V ${_url_type}://\$_${_url_type}_server_ip/\$_${_url_type}_server_dir/${_f} | tar zxvpf - )
				fi
			fi
			if [ $? -ne 0 ]; then
				# Mark xfer as having failed,.
				_setsdone=`rmel $_f $_setsdone`
				_failed_files="${_failed_files} ${_f}"
			fi
		done

		# Give them the option of refetching failed files.
		_get_files=""
		while test -n "${_failed_files}" ; do
			echo ""
			echo "The following files failed to transfer and extract correctly:"
			echo "Choose which one(s) to refetch or 'done' to exit selector."
			echo ""

			_next=""
			for _f in $_failed_files ; do
				if isin $_f $_setsdone ; then
					echo -n "	[X] "
					_next=""
				else
					echo -n "	[ ] "
					if [ -z "$_next" ]; then
						_next=$_f
					fi
				fi
				echo $_f
			done
			echo ""

			# Get the name of the file.
			echo -n "File name [$_next]? "
			getresp "$_next"
			if [ "X${resp}" = X"done" ]; then
				break
			elif [ "X${resp}" = X"list" ]; then
				echo ""
				eval echo "\$_${_url_type}_server_dir:"
				echo "${_file_list}"
				echo ""
				continue
			fi
			_f=$resp

			# Ensure file exists
			if ! isin $_f $_file_list ; then
				eval echo "File \$_${_url_type}_server_dir/$_f does not exist.  Check to make"
				echo "sure you entered the information properly."				continue
			fi
			# Add file to extraction list
			_get_files="${_get_files} ${_f}"
			_setsdone="${_f} ${_setsdone}"
		done
	done
}

install_from_mounted_fs() {
	# $1 - directory containing installation sets
	local _filename
	local _sets
	local _next
	local _f
	local _kernel

	_sets=""
	if dir_has_sets $1 $THESETS; then
		for _f in $THESETS ; do
			if [ "X${_f}" = "Xkernel" ]; then
				if [ -f $1/bsd ]; then
					_kernel=bsd
				fi
			elif [ -f $1/${_f}${VERSION}.tar.gz ]; then
				_sets="$_sets ${_f}${VERSION}.tar.gz"
			elif [ -f $1/${_f}${VERSION}.tgz ]; then
				_sets="$_sets ${_f}${VERSION}.tgz"
			fi
		done
	else
		echo "There are no OpenBSD install sets available in \"$1\""
		return
	fi

	while : ; do
		echo "The following sets are available for extraction:"
		echo "(marked sets have already been extracted)"
		echo ""

		_next=""
		for _f in $_sets $_kernel ; do
			if isin $_f $_setsdone; then
				echo -n "	[X] "
				_next=""
			else
				echo -n "	[ ] "
				if [ -z "$_next" ]; then
					_next=$_f
				fi
			fi
			echo $_f
		done
		echo ""

		# Get the name of the file.
		if [ "X$_next" = "X" ]; then
			resp=n
		else
			resp=y
		fi
		echo -n "Continue extraction in this directory [$resp]?"
		getresp "$resp"
		if [ "$resp" = "n" ]; then
			break
		fi

		echo -n "File name [$_next]? "
		getresp "$_next"
		_f=$resp
		_filename="/$1/$_f"

		# Ensure file exists
		if [ ! -f $_filename ]; then
			echo "File $_filename does not exist.  Check to make"
			echo "sure you entered the information properly."
			continue
		fi

		# Extract file
		if [ X$_f = X$_kernel ]; then
			cp $_filename /mnt/$_f
		else
			cat $_filename | (cd /mnt; tar -zxvpf -)
		fi
		echo "Extraction complete."
		_setsdone="$_f $_setsdone"

	done
}

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 partition with the installation sets:

__install_cdrom_1
	_CDDEVS=`md_get_cddevs`
	echo    "$_CDDEVS"
	echo	""
	echo -n	"Which is the CD-ROM with the installation media? [abort] "
	getresp "abort"
	case "$resp" in
		abort)
			echo "Aborting."
			return
			;;

		*)
			if isin $resp $_CDDEVS ; then
				_drive=$resp
			else
				echo ""
				echo "The CD-ROM $resp does not exist."
				echo "Aborting."
				return
			fi
			;;
	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
			$_partition_range)
				_partition=$resp
				;;

			*)
				echo "Invalid response: $resp"
				resp=""		# force loop to repeat
				;;
		esac
	done

	# Ask for filesystem type
	cat << \__install_cdrom_2

There are two CD-ROM filesystem types currently supported by this program:
	1) ISO-9660 (cd9660)
	2) Berkeley Fast Filesystem (ffs)

__install_cdrom_2
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		echo -n "Which filesystem type? [cd9660] "
		getresp "cd9660"
		case "$resp" in
			cd9660|ffs)
				_fstype=$resp
				;;

			*)
				echo "Invalid response: $resp"
				resp=""		# force loop to repeat
				;;
		esac
	done

	# Mount the CD-ROM
	if ! mount -t ${_fstype} -o ro \
	    /dev/${_drive}${_partition} /mnt2 ; then
		echo "Cannot mount CD-ROM drive.  Aborting."
		return
	fi

	# Get the directory where the file lives
	if [ "X${_directory}" = X"" ]; then
		_directory="/${VERSION_MAJOR}.${VERSION_MINOR}/${ARCH}"
	fi
	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 "${_directory}"
	done
	_directory=$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 _def_partition
	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
	cat <<__mount_a_disk_1

The following partitions have been found on $_drive:

__mount_a_disk_1
	disklabel $_drive 2>/dev/null | grep '^  .:'
	echo
	_likely_partition_range=`disklabel $_drive 2>/dev/null | \
	    sed -n -e '/swap/s/.*//' -e '/unused/s/.*//' \
		-e '/^  .:/{s/^  \(.\).*/\1/;H;}' \
		-e '${g;s/\n//g;s/^/[/;s/$/]/p;}'`
	_partition_range=`disklabel $_drive 2>/dev/null | \
	    sed -n -e '/^  .:/{s/^  \(.\).*/\1/;H;}' \
		-e '${g;s/\n//g;s/^/[/;s/$/]/p;}'`
	_def_partition=`echo $_likely_partition_range | \
	    sed -n 's/^\[\(.\).*\]/\1/p'`
	if [ -z "$_def_partition" ]; then
		_def_partition=`echo $_partition_range | \
		    sed -n 's/^\[\(.\).*\]/\1/p'`
		if [ -z "$_def_partition" ]; then
			echo "There are no usable partitions on that disk"
			return 0
		fi
	fi 
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		echo -n "Partition? [$_def_partition] "
		getresp "$_def_partition"
		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) default (deduced from the disklabel)
	2) ffs
__mount_a_disk_2
	_md_fstype=`md_native_fstype`
	_md_fsopts=`md_native_fsopts`
	if [ ! -z "$_md_fstype" ]; then
		echo "	3) $_md_fstype"
	else
		_md_fstype="_undefined_"
	fi
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		echo -n "Which filesystem type? [default] "
		getresp "default"
		case "$resp" in
			default)
				_fstype=""
				_fsopts="ro"
				;;
			ffs)
				_fstype="-t $resp"
				_fsopts="ro"
				;;
			$_md_fstype)
				_fstype="-t $resp"
				_fsopts=$_md_fsopts
				;;
			*)
				echo "Invalid response: $resp"
				resp=""		# force loop to repeat
				;;
		esac
	done

	# Mount the disk
	if ! mount $_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 "${_directory}"
	done
	_directory=$resp

	install_from_mounted_fs /mnt2/${_directory}
	umount -f /mnt2 > /dev/null 2>&1
}

install_nfs() {
	# Get the IP address of the server
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		echo -n "Server IP address or hostname? [${_nfs_server_ip}] "
		getresp "${_nfs_server_ip}"
	done
	_nfs_server_ip=$resp

	# Get server path to mount
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		echo -n "Filesystem on server to mount? [${_nfs_server_path}] "
		getresp "${_nfs_server_path}"
	done
	_nfs_server_path=$resp

	# Determine use of TCP
	echo -n "Use TCP transport (only works with capable NFS server)? [n] "
	getresp "n"
	case "$resp" in
		y*|Y*)
			_nfs_tcp="-T"
			;;

		*)
			_nfs_tcp=""
			;;
	esac

	# Mount the server
	mkdir /mnt2 > /dev/null 2>&1
	if ! mount_nfs $_nfs_tcp ${_nfs_server_ip}:${_nfs_server_path} \
	    /mnt2 ; then
		echo "Cannot mount NFS server.  Aborting."
		return
	fi

	# Get the directory where the file lives
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		echo "Enter the directory relative to the mount point that"
		echo -n "contains the file. [${_nfs_directory}] "
		getresp "${_nfs_directory}"
	done
	_nfs_directory=$resp

	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

The installation program needs to know which tape device to use.  Make
sure you use a "no rewind on close" device.

__install_tape_1
	_tape=`basename $TAPE`
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		echo -n "Name of tape device? [${_tape}]"
		getresp "${_tape}"
	done
	_tape=`basename $resp`
	TAPE="/dev/${_tape}"
	if [ ! -c $TAPE ]; then
		echo "$TAPE does not exist or is not a character special file."
		echo "Aborting."
		return
	fi
	export TAPE

	# Rewind the tape device
	echo -n "Rewinding tape..."
	if ! mt rewind ; then
		echo "$TAPE may not be attached to the system or may not be"
		echo "a tape device.  Aborting."
		return
	fi
	echo "done."

	# Get the file number
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		echo -n "File number? "
		getresp ""
		case "$resp" in
			[1-9]*)
				_nskip=`expr $resp - 1`
				;;

			*)
				echo "Invalid file number ${resp}."
				resp=""		# fore loop to repeat
				;;
		esac
	done

	# Skip to correct file.
	echo -n "Skipping to source file..."
	if [ "X${_nskip}" != X"0" ]; then
		if ! mt fsf $_nskip ; then
			echo "Could not skip $_nskip files.  Aborting."
			return
		fi
	fi
	echo "done."

	cat << \__install_tape_2

There are 2 different ways the file can be stored on tape:

	1) an image of a gzipped tar file
	2) a standard tar image

__install_tape_2
	resp=""		# force one iteration
	while [ "X${resp}" = X"" ]; do
		echo -n "Which way is it? [1] "
		getresp "1"
		case "$resp" in
		1)
			_xcmd="tar -zxvpf -"
			;;

		2)
			_xcmd="tar -xvpf -"
			;;

		*)
			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
system by a directory structure rooted in "/usr/share/timezone". Most
timezones can be selected by entering a token like "MET" or "GMT-6".
Other zones are grouped by continent, with detailed zone information
separated by a slash ("/"), e.g. "US/Pacific".

To get a listing of what's available in /usr/share/zoneinfo, enter "?"
at the prompts below.

__get_timezone_1
	if [ X$TZ = X ]; then
		TZ=`ls -l /mnt/etc/localtime 2>/dev/null | cutlast`
		TZ=${TZ#/usr/share/zoneinfo/}
	fi
	while : ; do
		echo -n	"What timezone are you in [\`?' for list] [$TZ]? "
		getresp "$TZ"
		case "$resp" in
		"")
			echo "Timezone defaults to GMT"
			TZ="GMT"
			break;
			;;
		"?")
			ls ${_zonepath}/usr/share/zoneinfo
			;;
		*)
			_a=$resp
			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 ${_zonepath}/usr/share/zoneinfo/$_a ;;
				*)	_a=${_a}/${resp}
					if [ -f ${_zonepath}/usr/share/zoneinfo/$_a ]; then
						break;
					fi
					;;
				esac
			done
			if [ -f ${_zonepath}/usr/share/zoneinfo/$_a ]; then
				TZ="$_a"
				echo "You have selected timezone \"$_a\"".
				return
			fi
			echo "'/usr/share/zoneinfo/$_a' is not a valid timezone on this system."
			;;
		esac
	done
}

install_sets()
{
	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 network server.

You will have the chance to repeat this step or to extract sets from
several places, so you don't have to try to load all the sets in one
try and can recover from some errors.

__install_sets_1

	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, h(ttp), (t)ape, (C)D-ROM,"
			echo -n "(N)FS or local (d)isk? "
			getresp ""
			case "$resp" in
			d*|D*)
				install_disk
				resp=d
				;;
			f*|F*)
				install_url ftp
				resp=f
				;;
			h*|H*)
				install_url http
				resp=h
				;;
			t*|T*)
				install_tape
				resp=t
				;;
			c*|C*)
				install_cdrom
				resp=c
				;;
			n*|N*)
				install_nfs
				resp=n
				;;
			*)
				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
}

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=$2
	( while read _dev _mp _fstype _rest; do
		# Skip comment lines
		case "$_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
			echo $_dev /mnt$_mp $_fstype $_rest
		fi
	    done ) < $_fstab > $_fstab_shadow
}

mount_fs()
{
	# Must mount filesystems manually, one at a time, so we can make
	# sure the mount points exist.
	# $1 is a file in fstab format
	local _fstab

	_fstab=$1

	( while read line; do
		set -- $line
		_dev=$1
		_mp=$2
		_fstype=$3
		_opt=$4

		# If not the root filesystem, make sure the mount
		# point is present.
		if [ "X{$_mp}" != X"/mnt" ]; then
			mkdir -p $_mp
		fi

		# Mount the filesystem.  If the mount fails, exit
		# with an error condition to tell the outer
		# later to bail.
		if ! mount -v -t $_fstype -o $_opt $_dev $_mp ; then
			# error message displated by mount
			exit 1
		fi
	done ) < $_fstab

	if [ "X${?}" != X"0" ]; then
		cat << \__mount_filesystems_1

FATAL ERROR:  Cannot mount filesystems.  Double-check your configuration
and restart the installation process.
__mount_filesystems_1
		exit
	fi
}

unmount_fs()
{
	# Unmount all filesystems and check their integrity.
	# Usage: [-check] <fstab file>
	local _check
	local _fstab
	local _pid

	if [ "$1" = "-check" ]; then
		_check=1
		_fstab=$2
	else
		_check=0
		_fstab=$1
	fi

	if [ ! \( -f $_fstab -a -s $_fstab \) ]; then
		echo "fstab empty" > /dev/tty
		return
	fi

	(
		_devs=""
		_mps=""
		# maintain reverse order
		while read line; do
			set -- $line
			_devs="$1 ${_devs}"
			_mps="$2 ${_mps}"
		done
		echo -n "Umounting filesystems... "
		for _mp in ${_mps}; do
			echo -n "${_mp} "
			umount ${_mp}
		done
		echo "Done."

		if [ $_check = 1 ]; then
			echo "Checking filesystem integrity..."
			for _dev in ${_devs}; do
				echo  "${_dev}"
				fsck -f ${_dev}
			done
		fi
		echo "Done."
	) < $_fstab
}

check_fs()
{
	# Check filesystem integrity.
	# $1 is a file in fstab format
	local _fstab

	_fstab=$1

	(
		_devs=""
		_mps=""
		while read line; do
			set -- $line
			_devs="$1 ${_devs}"
			_mps="$2 ${_mps}"
		done

		echo "Checking filesystem integrity..."
		for _dev in ${_devs}; do
			echo  "${_dev}"
			fsck -f ${_dev}
		done
		echo "Done."
	) < $_fstab
}