path: root/installer/ld4-inst

#! /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

  # check for existing programs: 
    # rsync (server-side) -> which
    # 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
  {!2}=$back
  echo "$2=\"$back\"" >> .config
}

distro_check() {
  case "${!1}" in
    Debian*|debian*|Sarge*|sarge*)
      {!1}=debian
      case "${!2}" in
        Sarge*|sarge*|3.1*|*)
          {!2}=3.1
        ;;
      esac
    ;;
    Ubuntu*|ubuntu*)
      {!1}=ubuntu
      case "${!2}" in
        Breezy*|breezy*|*)
          {!2}=5.10
        ;;
      esac
      ;;
    Gentoo*|gentoo*)
      {!1}=gentoo
      case "${!2}" in
        2005*|*)
          {!2}=2005.1
        ;;
      esac
    ;;
    SuSE*|suse*|Suse*|SuSe*|SUSE*|*)
      {!1}=suse
      case "${!2}" in
        9*)
          {!2}=9.3
        ;;
        10.0)
          {!2}=10.0
        ;;
        10*)
          {!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

  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

  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

  . config-${server_distro}
  
  # das grosse frage-antwort-spiel:
  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"

  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?
}


copy_system() {
  rsync -avDe ssh --delete --exclude-from=distro-specs/exclude-${client_distro} ${rsyncsource} ${rootdir}
    
  # mksquashfs
}

# setting up server site configuration files etc.
setup_server () {
  # dhcp
  if [ -f ${dhcpd_conf} ] ; then
    echo "Copying old dhcpd.conf to dhcpd.conf.bak"
    mv ${dhcpd_conf} ${dhcpd_conf}.bak
  fi
  cp default_files/dhcpd.conf ${dhcpd_conf}
  sed -e "s,@@@server@@@,${server}"

  # atftpd
  if [ -f ${atftpd_conf} ] ; then
    echo "Copying old atftpd config file to ${atftpd_conf}.bak"
    cp ${atftpd_conf} ${atftpd_conf}.bak
  fi
  sed -e 's,/tftpboot,${tftpbootdir},' -i ${atftpd_conf}

  # nfs
  exports_conf="/etc/exports"
  if [ -f ${exports_conf} ] ; then
    echo "Copying old nfs export file to ${exports_conf}.bak"
    mv ${exports_conf} ${exports_conf}.bak
  fi
  
  # make services start
}


create_initrd() {

}


## ------ MAIN ------ ##

header
precheck #(run as root, rsync etc.)
configure
copy_system
setup_server
create_initrd