#! /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\""
sed -e '/'$2'=.*/d' -i .config
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
# FIXME!! network autodetection seems not to work
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 (e.g. debian): " server_distro ${server_distro}
#ask "Server distribution version: " server_distro_ver ${server_distro_ver}
distro_check server_distro server_distro_ver
echo "Using ${server_distro} as server distribution"
# ask for client distro
ask "Client distribution (e.g. debian): " client_distro ${client_distro}
ask "Client distribution version (numerical - e.g. 3.1): " client_distro_ver ${client_distro_ver}
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 ???
if [ -z ${rsyncsource} ] ; then rsyncsource="localhost:/" ; fi
ask "IP + Path to reference system: " rsyncsource $rsyncsource
# dns-server
# domain-name
# evtl. ntp-server
# which kernel(s) to use to generate initial ramdisk(s)
# list available kernels and allow to chose from
# nfs / nbd / squash-fs?
# password for pxeboot-menu (caution: you can easily retrieve it in clear text!!)
pxe_passwd="master"
}
copy_system() {
echo -e "\n\nSyncing system now\nPlease enter root password of client machine\n"
rsync -avDe ssh --delete --exclude-from=distro-specs/exclude-${client_distro} ${rsyncsource} ${rootdir} || { echo "Rsync failed" ; exit 1 }
# generate error message in case rsync didn't work and exit.
# TODO: mksquashfs (background process)
}
# setting up server site configuration files etc.
setup_server () {
echo -e "\n\nSetting up server configuration\n"
timestamp=`date +%Y%m%d-%H%M`
# creating central dxs configuration directory structure if it doesn't exist
for dir in dhcp nfs atftpd pxelinux ; do # TODO etc...
[ -d ${dxs_conf}/${dir} ] || mkdir -p ${dxs_conf}/${dir}
done
# creating new configuration files in $dxs_conf
# dhcp
sed -e "s,@@@server@@@,${server},g;s,@@@netname@@@,${netname},g;s,@@@netmask@@@,${netmask},g;s,@@@broadcast@@@,${broadcast},g" default_files/dhcpd.conf > ${dxs_conf}/${dxs_dhcpd_conf}-${timestamp}
# TODO: sed -e @@@example1@@@, netname+1 etc. - which ip addresses are safe to use?
# atftpd
sed -e "s,/tftpboot,${tftpbootdir}," default_files/${atftpd_conf_name} > ${dxs_conf}/${dxs_atftpd_conf}-${timestamp}
# nfs
echo -e "# Bla Blub\n \
# NFS export entry for DXS\n\
${rootdir} ${netname}/${netmask}(ro,no_root_squash,async)" >> ${dxs_conf}/${dxs_exports_conf}-${timestamp}
# pxe
[ -d ${tftpbootdir} ] || mkdir -p ${tftpbootdir}
rsync -a --exclude=.svn default_files/tftpboot ${tftpbootdir}
sed -e "s,@@@server@@@,${server},g;s,@@@tftpbootdir@@@,${tftpbootdir},g;s,@@@pxe_passwd@@@,${pxe_passwd},g;s,@@@client_distro@@@,${client_distro},g;s,@@@client_distro_ver@@@,${client_distro_ver},g;s,@@@rootdir@@@,${rootdir},g" default_files/default > ${dxs_conf}/${dxs_pxedefault_conf}-${timestamp}
# TODO: loop over kernel and initial ramdisks and create corresponding entries in default
# backing up original files
for cfile in ${dhcpd_conf} ${atftpd_conf} ${exports_conf} ; do
if [ -f ${cfile} -a ! -L ${cfile} ] ; then
echo "Copying old ${cfile} to ${cfile}"
mv ${file} ${file}.original
elif [ -L ${cfile} ] ; then
unlink ${cfile}
fi
done
# linking files
for cfile in "${dxs_dhcpd_conf} ${dhcpd_conf}" "${dxs_atftpd_conf} ${atftpd_conf}" "${dxs_exports_conf} ${exports_conf}" "${dxs_pxedefault_conf} ${pxedefault_conf}" ; do
set -- $cfile
ln -s ${dxs_conf}/${1}-${timestamp} ${2}
done
}
create_initrd() {
# FIXME: mkdxsinitrd currently wants to run from own directory
# ugly workaround...
cd ../initrd
# TODO: loop over chosen kernels -> mkdxsinitrd -k ... and -i ...
./mkdxsinitrd -r ${rootdir}
cd -
# generate links to kernels and initial ramdisks
# TODO: move this stuff in upper loop
if [ -e ${rootdir}/boot/vmlinuz ] ; then
ln -s ${rootdir}/boot/vmlinuz ${tftpbootdir}
elif [ -e ${rootdir}/vmlinuz ] ; then
ln -s ${rootdir}/boot/vmlinuz ${tftpbootdir}
fi
ln -s ${rootdir}/boot/initrd ${tftpbootdir}
}
footer() {
echo -e "\nPlease assure to restart atftpd, nfs-kernel-server and dhcpd!\n"
echo -e "\nInstallation finished.\n"
# TODO: tell user things he's got to configure aftewards - point to README
# * in dhcpd.conf - put in clients mac and ip addresses
# * make services start
}
## ------ MAIN ------ ##
pxedefault_conf="pxelinux.cfg/default"
dxs_conf="/etc/dxs/"
dxs_dhcpd_conf="dhcp/dhcpd.conf"
dxs_atftpd_conf="atftpd/atftpd"
dxs_nfs_conf="nfs/exports"
dxs_pxedefault_conf="pxe/default"
header
precheck #(run as root, rsync etc.)
configure
copy_system
create_initrd
setup_server
footer
