#! /bin/bash
#
# Description: Script for generating dxs filesystem by
# cloning from rsync source for Diskless X Stations (v4.0)
#
# Author(s): Dirk von Suchodoletz <dirk@goe.net>, 02-11-2005
# Copyright: (c) 2003, 2005 - RZ Universitaet Freiburg
#
header() {
echo
echo "Welcome to the LD4 installation"
echo
}
# check needed things for installation
precheck() {
# check if running as root
if [ "`id -u`" != "0" ]; then
echo -e "\nYou don't have the needed permission. Please rerun as root user!\n"
exit 1
fi
# check for existing programs:
# rsync (server-side)
which rsync >/dev/null
if [ $? != 0 ] ; then
echo -e "\nYou need to install rsync on server side before installing!\n"
exit 1
fi
# ssh, rsync (referenz-system-side) -> not possible in precheck
# nfs-kernel-server, atftpd
# -> not needed for installation
}
# ask question variable_name default_value
ask() {
echo
echo "$1"
echo -n "* [ $3 ] "
read userinput
if [ -z "$userinput" ] ; then
local back=$3
else
local back="$userinput"
fi
eval "$2=\"$back\""
echo "$2=\"$back\"" >> .config
}
distro_check() {
case "${!1}" in
Debian*|debian*|Sarge*|sarge*)
eval "$1=\"debian\""
case "${!2}" in
Sarge*|sarge*|3.1*|*)
eval "$2=\"3.1\""
;;
esac
;;
Ubuntu*|ubuntu*)
eval "$1=\"ubuntu\""
case "${!2}" in
Breezy*|breezy*|*)
eval "$2=\"5.10\""
;;
esac
;;
Gentoo*|gentoo*)
eval "$1=\"gentoo\""
case "${!2}" in
2005*|*)
eval "$2=\"2005.1\""
;;
esac
;;
SuSE*|suse*|Suse*|SuSe*|SUSE*|*)
eval "$1=\"suse\""
case "${!2}" in
9*)
eval "$2=\"9.3\""
;;
10.0)
eval "$2=\"10.0\""
;;
10*)
eval "$2=\"10.1\""
;;
esac
;;
esac
}
configure() {
export LANG="c"
if [ -f .config ] ; then
echo -n "Use values from last installation? [Y/n] "
read userinput
if [ "x$userinput" = "xn" ] ; then
cp .config.default .config
fi
else
cp .config.default .config
fi
. .config
# TODO: assure that values get entered only once in .config
# TODO: bash doesnt allow concatenation of more than 2 logical expressions
if ! [ -z $netmask -a -z $broadcast -a -z $netname -a -z $server ] ; then
ipcfg=( `ifconfig eth0 | grep "inet addr" | sed -e "s,[a-zA-Z]*:,,g"` )
netmask=${ipcfg[3]}
broadcast=${ipcfg[2]}
# quickhack (more intelligent solution needed ...)
netname=`route -n | grep -m 1 eth0 | grep -v "UG" | awk '{ print $1 }'`
server=${ipcfg[1]}
fi
# try to detect server architecture
if [ -z "${server_distro}" ] ; then
for i in /bin/lsb_release /usr/bin/lsb_release; do
if [ -e $i ] ; then
$i > /dev/null 2>&1 || break
server_distro=`. $i -i | sed "s/.*\t//"`
server_distro_ver=`. $i -r | sed "s/.*\t//"`
break
fi
done
fi
# if still no distro name set, try to find it using significant files
if [ -z "${server_distro}" ] ; then
if [ -e ${rootdir}/etc/SuSE-release ] ; then
server_distro=suse
server_distro_ver=`grep "VERSION" /etc/SuSE-release | sed "s/.*= //"`
elif [ -e /etc/lsb-release ] ; then
. /etc/lsb-release
server_distro=${DISTRIB_ID}
server_distro_ver=${DISTRIB_RELEASE}
elif [ -e /etc/debian_version ] ; then
server_distro=debian
server_distro_ver=`cat /etc/debian_version`
fi
fi
# das grosse frage-antwort-spiel:
ask "Server distribution: " server_distro ${server_distro}
distro_check server_distro server_distro_ver
echo "Using ${server_distro} as server distribution"
# ask for client distro
ask "Client distribution: " client_distro ${client_distro}
distro_check client_distro client_distro_ver
echo "Using ${client_distro} as client distribution"
if [ -z ${rootdir} ] ; then
${rootdir}="/nfsroot/"${client_distro}-${client_distro_ver}
fi
. distro-specs/config-${server_distro}
ask "Path for client system: " rootdir $rootdir
ask "Path for tftpboot: " tftpbootdir $tftpbootdir
ask "Which network do you want to use for DXS? (A.B.C.0) " netname $netname
ask "Which netmask should be used? (255.B.C.0): " netmask $netmask
ask "What is your servers IP for NFS, DHCP and TFTP? " server $server
# noetig??
ask "Broadcast Address: " broadcast $broadcast
# evtl. optional?
ask "Where automount home directories from? (A.B.C.D:/home-dir)" amt $server":/home"
# more information here!! set useful default
ask "Which debug level should be used? " debuglevel $debuglevel
# wo ist das referenzsystem? - was ist default ???
ask "IP + Path to reference system: " rsyncsource "localhost:/"
# hier auch dns-server etc abfragen??
# nfs / nbd / squash-fs?
# password for pxeboot-menu (caution: you can easily retrieve it in clear text!!)
pxe_passwd="master"
}
copy_system() {
echo -e "\n\nSyncing system now\nPlease enter root password of client machine\n"
rsync -avDe ssh --delete --exclude-from=distro-specs/exclude-${client_distro} ${rsyncsource} ${rootdir}
# generate error message in case rsync didn't work and exit.
# mksquashfs (background process)
}
# setting up server site configuration files etc.
setup_server () {
echo -e "\n\nSetting up server configuration\n"
# dhcp
if [ -f ${dhcpd_conf} ] ; then
echo "Copying old dhcpd.conf to dhcpd.conf.dxs.bak"
mv ${dhcpd_conf} ${dhcpd_conf}.dxs.bak
fi
cp default_files/dhcpd.conf ${dhcpd_conf}
sed -e "s,@@@server@@@,${server},g" -e "s,@@@netname@@@,${netname},g" -e "s,@@@netmask@@@,${netmask},g" -e "s,@@@broadcast@@@,${broadcast},g" -i ${dhcpd_conf}
# TODO: sed -e @@@example1@@@, netname+1 etc.
# atftpd
if [ -f ${atftpd_conf} ] ; then
echo "Copying old atftpd config file to ${atftpd_conf}.dxs.bak"
cp ${atftpd_conf} ${atftpd_conf}.dxs.bak
fi
## TODO: MISSING COPY - DISTRO SPECIFIC!!
sed -e "s,/tftpboot,${tftpbootdir}," -i ${atftpd_conf}
# nfs
exports_conf="/etc/exports"
if [ -f ${exports_conf} ] ; then
echo "Copying old nfs export file to ${exports_conf}.dxs.bak"
mv ${exports_conf} ${exports_conf}.dxs.bak
fi
echo "${rootdir} ${netname}/${netmask}(ro,no_root_squash,async)" >> ${exports_conf}
# pxe
if [ -e ${tftpbootdir} ] ; then
echo "Copying old tftpboot directory to ${tftpbootdir}.dxs.bak"
rm -rf ${tftpbootdir}.dxs.bak >/dev/null
mv ${tftpbootdir} ${tftpbootdir}.dxs.bak
fi
cp -r default_files/tftpboot ${tftpbootdir}
sed -e "s,@@@server@@@,${server},g" -e "s,@@@tftpbootdir@@@,${tftpbootdir},g" -e "s,@@@pxe_passwd@@@,${pxe_passwd},g" -e "s,@@@client_distro@@@,${client_distro},g" -e "s,@@@client_distro_ver@@@,${client_distro_ver},g" -e "s,@@@rootdir@@@,${rootdir},g" -i ${tftpbootdir}/pxelinux.cfg/default
# make services start -- do we really want to do this?
}
create_initrd() {
# FIXME: mkdxsinitrd currently wants to run from own directory
../initrd/mkdxsinitrd -r ${rootdir}
# generate links to kernel and initial ramdisk
ln -s ${rootdir}/boot/vmlinuz ${tftpbootdir}
ln -s ${rootdir}/boot/initrd ${tftpbootdir}
# TODO: assure that vmlinuz and initrd exist!!
}
footer() {
echo -e "\nPlease assure to restart atftpd, nfs-kernel-server and dhcpd!\n"
echo -e "\nInstallation finished.\n"
}
## ------ MAIN ------ ##
header
precheck #(run as root, rsync etc.)
configure
copy_system
setup_server
create_initrd
footer
