#! /bin/bash
#
# Description:  Script for generating dxs filesystem from scratch or
#               clone from rsync source for Diskless X Stations (v3.4)
#
# Author(s):    Dirk von Suchodoletz <dirk@goe.net>, 02-11-2005
# Copyright:    (c) 2003, 2005 - RZ Universitaet Freiburg
#
version="ldc-v3.4 0.10c"
distVersion="10.0"
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
# Place, Suite 330, Boston, MA 02111-1307 USA
#
# The rpm installation heavily bases on the y2pmdxs script from Lars Mueller
# <lars@m5r.de>.

#
# We assume (one) two nfs shares exported:
# 1) the diskless linux root filesystem
# 2) /tmp/dxs as a special rw exported share for temporary files
# 3) the client does have only one ethernet interface ---> eth0
#    this is passed via the mkinitrd
#
################################################################################

# otherwise some ip detection wouldn't work
LANG=us


check_files() {

  if [ ! -x ${rootdir}/sbin/mkinitrd ]; then
          echo "please install mkinitrd package for the clients!!"
  fi

}

welcome() {
  if [ $d2dl ] ; then
    if [ $update ] ; then
      echo "Welcome to version $version of d2dl! Script called for update!"
      echo "!! Remember !! Put all files which should be excluded from update"
      echo "into exclude.local file (this directory) !! See installation log"
    else
      echo "Welcome to version $version of d2dl!"
    fi
  else
    echo "Welcome to version $version of dxs-inst! This installation method"
    echo "is heavily dependent on the servers software and architecture!!"
    echo "It works for the most recent SuSE linux versions 9.1 and 9.2. For"
    echo "older versions use previous script versions or the other installation"
    echo "method (d2dl - clone installed system). You will need an installed"
    echo "version of 'y2pmsh' and 'rsync' - otherwise the procedure would fail"
    echo "(this script simply exits) ..."
    echo -en "\nChecking for y2pmsh: "
    rpm -q y2pmsh || exit 5
    # FIXME: at the moment fixed external settings are used
    echo "This script requires a valid installation source set with servers"
    echo "yast2 - otherwise no package selections could be made!!"
  fi
}

ask() {
  echo -n "* [ $2 ] "
  read userinput
  if [ -z $userinput ] ; then
      back=$2
  else
      back=$userinput
  fi
  echo "$1=\"$back\"" >> .config
}


configure() {
  # declare some variables and set some defaults
  rootdir="/nfsroot/dxs"
  debuglevel="2"
  initdef="5"
  modulelist="e1000 e100 b44 tg3 8139too"
  if [ $d2dl ]; then
    rsrc="/"
  else
    install_source="/suse-install"
  fi
  idef="3"
  ipcfg=( `ifconfig eth0 | grep "inet addr" | sed -e "s,[a-zA-Z]*:,,g"` )
  netmask=${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]}
  # default passwords (un)crypted
  rpw="geheim"
  dpw="TEST"
  pwr='$2a$10$YUfF8ppp5YU3IkwJLsZtW.lc6dqC8pV/.TkpMK98opNt9/MtRo61a'
  pwa='$2a$10$NiRMNlzpwIVA7RmpF2IygeKocRmll8n.1HYnMR4f2dztUE9SINdrK'
  updateTreeURL=$( test -f /etc/youservers && grep -v ^# /etc/youservers | head -n 1)
test -z ${updateTreeURL} && updateTreeURL="http://ftp.gwdg.de/pub/suse"
    

  echo "installation log for $0 $version">installation.log

  if [ -z $netname ] ; then
    netname="192.168.2.0"
  fi
  # ask for some info interactively
  echo
          
  welcome

  echo "See installation.log for errors ..."
  echo -ne "\nChecking for rsync: "

  rsync=TRUE
  which rsync &>/dev/null || rsync=FALSE
  if ! rsync ; then
    echo "rsync is missing..."; exit 5
  fi

  echo -en "\nPrechecks passed!!"

  echo
  echo -en "Please answer the following questions: "
  echo "(Enter takes defaults)"
  [ -f .config ] && {
      echo "Reading settings from .config file!!"
      . .config
  }
  echo

  if [ $update ] ; then
    echo "Which dxs root path should be updated?"
  else
    echo "Which dxs root path should be used?"
  fi
  ask "rootdir" $rootdir

  # do not ask a set of questions if in update mode
  if [ ! $update ] ; then
    echo "Which network do you want to use for DXS? (A.B.C.0)"
    ask "netname" $netname
    
    echo "Which netmask should be used? (255.B.C.0)"
    ask "netmask" $netmask
    echo "Using $netname/$netmask !"

    echo "What is your servers IP for NFS, DHCP and TFTP?"
    ask "server" $server

    echo "Where automount home directories from? (A.B.C.D:/home-dir)"
    ask "amt" $server":/home"
  fi

  if [ $d2dl ]; then
    # d2dl specific
    if [ $update ] ; then
      echo "Which update source should be used for rsync?"
    else
      echo "Which source should be used for rsync?"
    fi
    echo "format [server:]/path (without trailing / or *)"
    ask "rsrc" $rsrc

  else  # dxs-inst specific
    #    echo "Which source directory should be used for installation?"
    echo "The following source is used for intallation:"
    install_source=`echo "source -s"|y2pmsh|grep -e "[0-9]: "`
    # echo -n "${install_source} [ (r)eplace, (a)dd, (d)elete ] "
    # URL format for adding sources:
    #     e.g. ftp://ftp-suse.uni-freiburg.de//pub/suse/i386/9.1
    echo "${install_source}"
    #read sc
    #if [ $sc ] ; then install_source=$sc; fi
    echo "Which SuSE online update source should be used?"
    echo -n "* [ ${updateTreeURL} ] "
    read updatesrc
    if [ $updatesrc ] ; then
      updateTreeURL=$updatesrc;
      echo "updateTreeURL=\"${updateTreeURL}\"" >> .config
    fi
    echo "Collecting available package selections from source media.  Please wait."
    availableSelections=$( echo -e "set root ${rootdir}\nselstate -a" | \
      y2pmsh | \
      grep "^     " | cut -f 6 -d ' ')
    unset selection
    echo "Please select package groups for installation!"
    for sel in $availableSelections; do
      echo -n "  Add selection $sel? [yN] "
      read answer
      case "${answer}" in
        y|Y) selection="${selection} ${sel}" ;;
        *) : ;;
      esac
    done
    if test "${selection}"; then
      echo "We have selected: ${selection}"
      #if ! echo ${selection} | grep Minimal -q; then
      # echo "Selection 'Minimal' not selected.  Adding it ..."
      # selection="${selection} Minimal"
      # fi
    else
      echo "No package selection accepted.  Using 'Minimal' as default."
      selection="Minimal"
    fi
  fi

  if [ ! $update ] ; then
    echo "Which debug level should be used?"
    ask "debuglevel" $debuglevel

    echo "Which default init you would like to use?"
    ask "initdef" $initdef

    # which vendor-class-identifier??
    #
    echo
    echo "This script sets up the basic filesystem structure for diskless"
    echo "X-stations now. Please enable the NFS-Share ${rootdir} in your"
    echo "servers /etc/exports file, i.e.:"
    echo -e "${rootdir}\t$netname/$netmask(ro,no_root_squash,async)"
    echo -e "/tmp/dxs\t\t$netname/$netmask(rw,no_root_squash,async)"
    echo -e "/home\t\t$netname/$netmask(rw,async)"
    echo
    echo "... and (re)start your nfs server."
    echo
  fi

  echo "Which ethernet card modules should be included in initrd?"
  ask "modulelist" $modulelist
}

create_installation() {
  # create installation directory
  test -d ${rootdir} || mkdir -p ${rootdir}

  if [ ! $d2dl ]; then
    rootdir=${rootdir} \
    packageSelection="${selection}" \
    additionalPackages="dhcp-client kernel-default bootsplash bootsplash-theme-SuSE" \
    obsoletPackages="grub devs" \
          ./y2pmdxs
    if test $? != 0; then
          echo "Error: y2pmdxs failed."
        exit 1
    fi

    # Ensure to install the latest updates.
    echo -e "Calling onlineupdate for version: ${distVersion}\nSource: ${updateTreeURL}"
    # Ensure to have a working DNS inside the installed system.
    test -f ${rootdir}/etc/resolv.conf || \
          cp -p /etc/resolv.conf ${rootdir}/etc
    chroot ${rootdir} /usr/bin/test -x /usr/bin/online_update && \
      chroot ${rootdir} online_update --version ${distVersion} --url ${updateTreeURL}

  else # d2dl specific
    # exclude list piped to rsync ("+" includes, "-" excludes)
    touch ./exclude.local &>/dev/null
  # fixme!! modify exclude list and remove files via find
    exclude="+ /bin\n+ /boot\n+ /etc\n+ /home\n+ /lib\n\
  + /media\n+ /mnt\n+ /opt\n+ /root\n+ /sbin\n+ /tmp\n+ /usr\n\
  + /var\n\
  - *~\n- *.rpmsave\n- *.rpmnew\n- *.YaST2save\n- *.old\n- *.bak\n\
  - /boot/initrd*\n- /boot/grub\n- /tmp/*\n- /root/*\n- /home/*\n\
  - /var/lib/YaST2/you/mnt/*\n- .svn\n- /var/tmp/*\n\
  - /usr/share/vmware/*\n- *lost+found*\n- /mnt/*\n- /media/*\n- /*"
    # 64bit systems
    # fixme!!
    # if 64bit; then exclude="+ lib64\n"${exclude}
    # fi
    if  echo ${rsrc} |grep ":"&>/dev/null  ; then
      echo "Wait for root password dialog from the rsync source server! "
      echo -e "$exclude" | rsync -avDe ssh --delete --exclude-from=- \
        $rsexcl ${rsrc}/* ${rootdir}
    else
      echo -e "$exclude" | rsync -avD --delete --exclude-from=- $rsexcl \
        ${rsrc}/ ${rootdir}
    fi
    # several scripts and configurations do not make much sense to be
    # setup or started in diskless environment
    rm -rf ${rootdir}/etc/init.d/{SuSEfirewall2*,dhcpd,rpmconfigcheck,autoyast,\
  boot.{md,localfs,crypto,local,rootfsck,device-mapper}} \
  ${rootdir}/etc/init.d/boot.d/*{md,localfs,crypto,rootfsck,\
  device-mapper,coldplug,idedma} ${rootdir}/etc/cron.*/* \
  ${rootdir}/etc/sysconfig/ifcfg-eth* /etc/modprobe.d/* /etc/X11/XF86Conf* \
  ${rootdir}/lib/klibc/events/*

    # empty some of the /var subdirectories
    find  ${rootdir}/var/X11R6 ${rootdir}/var/tmp ${rootdir}/var/cache \
          ${rootdir}/var/lib/{ldap,slurpd,nfs,sax,mysql,YaST2,kdm,apache2,\
  asterisk,update-messages,autoinstall} \
          ${rootdir}/var/run ${rootdir}/var/log \
          ${rootdir}/var/spool ${rootdir}/var/lib/hardware \
          ${rootdir}/var/adm/backup -type f \
          -exec rm {} \;
  fi

  # add the later mounts point for rw filesystem part and several devices
  mkdir -p ${rootdir}/ram ${rootdir}/dev ${rootdir}/misc ${rootdir}/proc \
          ${rootdir}/sys ${rootdir}/events &>/dev/null
  #cp -a dxs-specific/* ${rootdir}/
  rsync -avxD $rsexcl --exclude=.svn dxs-specific/* ${rootdir}/
  rm ${rootdir}/etc/fstab &>/dev/null; touch ${rootdir}/etc/fstab

  # remove some unneeded files/links (setup within client itself, or to be
  # done by admin
  rm ${rootdir}/etc/mtab ${rootdir}/etc/X11/xorg.conf* \
          ${rootdir}/etc/X11/XF86Config &>/dev/null
  touch ${rootdir}/etc/mtab
  # services like network are already configured, other are not of much
  # sense like dhcpd
  rm ${rootdir}/etc/init.d/boot.d/* \
          ${rootdir}/etc/init.d/rc{2,3,5}.d/* &>/dev/null

  # touch the modules.dep files (so no error is shown if moduls.conf is newer)
  touch ${rootdir}/lib/modules/*/modules.* &>/dev/null

  # remove "not_configured" from vmware directory (proper configuration
  # from the diskless X station is not possible)
  rm ${rootdir}/etc/vmware/not_configured &>/dev/null
  # redirect the standard VMware temporary directory
  [ -f ${rootdir}/usr/lib/vmware/config ] && {
    grep "tmpDirectory" ${rootdir}/usr/lib/vmware/config &>/dev/null || \
          echo -e "tmpDirectory\t= /tmp/vmware_temporary" \
          >> ${rootdir}/usr/lib/vmware/config; }

  # setting passwords in shadow file
  if [ ! $update ] ; then
    grep dxs-user ${rootdir}/etc/passwd &>/dev/null || echo \
          "dxs-user:x:500:100:DXS  Admin:/tmp/dxs-user:/bin/bash" \
          >>${rootdir}/etc/passwd
    grep dxs-user ${rootdir}/etc/shadow &>/dev/null || echo \
          "dxs-user::11768:0:99999:7:-1::" >>${rootdir}/etc/shadow
    sed -e "s,root:[^:]*:,root:$pwr:," -e "s,dxs-user:[^:]*:,dxs-user:$pwa:," \
          ${rootdir}/etc/shadow >${rootdir}/etc/shadow.new
    mv ${rootdir}/etc/shadow.new ${rootdir}/etc/shadow

    # configuring automounter for home directories
    echo -e "# /etc/auto.home\n#\n# created by $0 version $version\n" \
      >${rootdir}/etc/auto.home
    echo -e "*\t-rsize=32768,wsize=32768,rw\t$amt/&" \
      >>${rootdir}/etc/auto.home

    # remove superfluous services from the kde & gnome desktop
    for i in SUSEgreeter.desktop kinternet.desktop suseplugger.desktop \
             susewatcher.desktop ktip.desktop ; do
          rm ${rootdir}/opt/kde3/share/autostart/$i &>/dev/null
    done

    # configure inittab (remove all gui related entries, set default runlevel,
    # and exchange boot for boot.ld script
    echo -e "# /etc/inittab - file modified by $0 version $version"\
          > ${rootdir}/etc/inittab.new
    grep -v -e "7:[35]" -e "/etc/inittab" ${rootdir}/etc/inittab \
          >> ${rootdir}/etc/inittab.new
    sed -e "s,id:.*,id:$initdef:initdefault:," \
        -e "s,/etc/init.d/boot,/etc/init.d/boot.ld," \
          ${rootdir}/etc/inittab.new > ${rootdir}/etc/inittab

    # switch on bluetooth
    echo -e "# /etc/sysconfig/bluetooth - file modified by $0 version $version"\
          > ${rootdir}/etc/sysconfig/bluetooth.new
    sed -e "s,START_SERVICES.*,START_SERVICES=\"yes\"," \
          ${rootdir}/etc/sysconfig/bluetooth >> \
          ${rootdir}/etc/sysconfig/bluetooth.new
    mv ${rootdir}/etc/sysconfig/bluetooth.new ${rootdir}/etc/sysconfig/bluetooth

    # enable magic sysrequest for the clients
    echo -e "# /etc/sysconfig/sysctl - file modified by $0 version $version"\
          > ${rootdir}/etc/sysconfig/sysctl.new
    sed -e "s,ENABLE_SYSRQ=.*,ENABLE_SYSRQ=\"yes\"," \
          ${rootdir}/etc/sysconfig/sysctl >> \
          ${rootdir}/etc/sysconfig/sysctl.new
    mv ${rootdir}/etc/sysconfig/sysctl.new ${rootdir}/etc/sysconfig/sysctl

    # add entry to have udev in initial ramdisk in /etc/sysconfig/hotplug
    # and switch off debugging completely
    # echo -e "# /etc/sysconfig/hotplug - file modified by $0 version $version"\
    #       > ${rootdir}/etc/sysconfig/hotplug.new
    # sed -e "s,HOTPLUG_DEV_ON_TMPFS.*,HOTPLUG_DEV_ON_TMPFS=\"yes\"," \
    #     -e "s,HOTPLUG_DEBUG.*,HOTPLUG_DEBUG=\"off\"," \
    #     ${rootdir}/etc/sysconfig/hotplug >> \
    #     ${rootdir}/etc/sysconfig/hotplug.new
    # mv ${rootdir}/etc/sysconfig/hotplug.new ${rootdir}/etc/sysconfig/hotplug

    # configure services, X11 fonts et. al.
    rm ${rootdir}/etc/init.d/boot.d/* \
          ${rootdir}/etc/init.d/rc{0,6}.d/*{halt,reboot} &>/dev/null
    for i in /etc/init.d/rc6.d/S20reboot \
           /etc/init.d/rc0.d/S20halt   \
           /etc/init.d/reboot          \
           /etc/init.d/halt
          do ln -sf /etc/init.d/halt.ld ${rootdir}${i}
    done
    # vmware-prepare should be added to .depends.start
    sed -e "s,TARGETS =,TARGETS = vmware-prep," \
          ${rootdir}/etc/init.d/.depend.start >> \
          ${rootdir}/etc/init.d/.depend.start.new
    echo "vmware-prep: " >> ${rootdir}/etc/init.d/.depend.start.new
    mv ${rootdir}/etc/init.d/.depend.start.new ${rootdir}/etc/init.d/.depend.start
    if [ ! $d2dl ]; then
      chroot ${rootdir} /sbin/SuSEconfig
      for service in udev proc shm servconf hwsetup klog \
        loadmodules clock localnet sysctl ipconfig; do
        chroot ${rootdir} insserv -f boot.${service}
      done
      # done earlier (simple rm at the moment)
      # Disable superflous services (network is needed/setup much earlier, machine
      # is a nfs-client but not a server)

    else
      count=10
      for i in proc servconf shm udev hwsetup klog loadmodules \
            localnet sysctl ipconfig; do
          (( count=$count+1 ))
          (( revcnt=41-$count ))
          ln -sf /etc/init.d/boot.$i ${rootdir}/etc/init.d/boot.d/S${count}boot.$i
          ln -sf /etc/init.d/boot.$i ${rootdir}/etc/init.d/boot.d/K${revcnt}boot.$i
      done
    fi

    # generate host ssh host key
    echo "generating common host key for all diskless machines"
    if ! test -f ${rootdir}/etc/ssh/ssh_host_key ; then
      ssh-keygen -t rsa1 -b 1024 -f ${rootdir}/etc/ssh/ssh_host_key -N ''
    fi
    if ! test -f ${rootdir}/etc/ssh/ssh_host_dsa_key ; then
      ssh-keygen -t dsa -b 1024 -f ${rootdir}/etc/ssh/ssh_host_dsa_key -N ''
    fi
    if ! test -f ${rootdir}/etc/ssh/ssh_host_rsa_key ; then
      ssh-keygen -t rsa -b 1024 -f ${rootdir}/etc/ssh/ssh_host_rsa_key -N ''
    fi
  fi
}

create_initrd() {
  # bind mount some directories needed for creation of initrd by mkinitrd
  # not if mkinitrd is patched!!
  for i in dev sys proc ; do
          # multiple bind mounts might occur ...
          #mount |grep -q "${rootdir}/$i " ||
          umount ${rootdir}/$i &>/dev/null
          mount --bind /$i ${rootdir}/$i
  done

  # generate initrd
  if [ -x ${rootdir}/sbin/mkinitrd ]; then
          echo "creating new initial ramdisk $modulelist"
          mknod ${rootdir}/dev/null c 1 3 &>/dev/null
          chroot ${rootdir} mkinitrd \
                  -b /boot \
                  -m "$modulelist" -s 1024x768 -I eth0 \
                  -d ${server}:/${rootdir}
          chroot ${rootdir} mkinitrd \
                  -b /boot -k vmlinuz -i initrd-800x600 \
                  -m "$modulelist" -s 800x600 -I eth0 \
                  -d ${server}:/${rootdir}
          chroot ${rootdir} mkinitrd \
                  -b /boot -k vmlinuz -i initrd-1280x1024 \
                  -m "$modulelist" -s 1024x768 -I eth0 \
                  -d ${server}:/${rootdir}
  else
          echo "please install mkinitrd package for the clients!!"
  fi

  # and etherboot compatible image
  mkelf-linux --ip=rom --output=${rootdir}/boot/bootimg \
          ${rootdir}/boot/vmlinuz ${rootdir}/boot/initrd || \
  echo "mkelf/mknbi is needed only for etherboot enabled network adaptors"

  # /dev, /sys, /proc are needed for mkinitrd
  umount ${rootdir}/proc # &>/dev/null
  umount ${rootdir}/dev #&>/dev/null
  umount ${rootdir}/sys #&>/dev/null
}

configure_pxe() {
  # create PXElinux configuration
  ldcver=`cat VERSION`
  echo "writing ${rootdir}/boot/pxelinux.cfg/default"
  echo -e "# pxelinux.cfg/default - file created by $0 version ${version}\
  n\
  #\n# config file for PXElinux booting\n#\n#\tDirk von Suchodoletz \
  <dirk@goe.net>, 2005" > ${rootdir}/boot/pxelinux.cfg/default
  echo -e "\nNOESCAPE 0\nPROMPT 0\nTIMEOUT 100\nDEFAULT menu\
  \nIMPLICIT 1\nALLOWOPTIONS 1\nONERROR menu\nMENU TITLE \
  What would you like to do? (use cursor to select)\n\
  MENU MASTER PASSWD $rpw\n\
  LABEL menu\n\tMENU HIDE\n\tKERNEL ${server}::${rootdir}/boot/menu.c32\n\
  LABEL dxs\n\tMENU DEFAULT\n\tMENU LABEL ^Linux Diskless Client \
  (DXS ${ldcver})\n\tKERNEL ${server}::${rootdir}/boot/vmlinuz\n\
  \tappend vga=0x317 splash=silent initrd=initrd apic dhcp \
  nfsroot=${server}:${rootdir}\n\tipappend 1\n\
  #LABEL dxs-nbd\n#\tMENU LABEL ^Linux Diskless Client \
  (DXS-NBD ${ldcver})\n#\tKERNEL ${server}::${rootdir}/boot/vmlinuz\n\
  #\tappend vga=0x314 splash=silent initrd=initrd apic dhcp \
  nbdroot=${server}:5000\n#\tipappend 1\n\
  #LABEL dxs-800\n#\tMENU LABEL ^Linux Diskless Client \
  (DXS-800x600 ${ldcver})\n#\tKERNEL ${server}::${rootdir}/boot/vmlinuz\n\
  #\tappend vga=0x314 splash=silent initrd=initrd-800x600 apic dhcp \
  nfsroot=${server}:${rootdir}\n#\tipappend 1\n\
  #LABEL dxs-1280\n#\tMENU LABEL ^Linux Diskless Client \
  (DXS-1280x1024 ${ldcver})\n#\tKERNEL ${server}::${rootdir}/boot/vmlinuz\n\
  #\tappend vga=0x31A splash=silent initrd=initrd-1280x1024 apic dhcp \
  nfsroot=${server}:${rootdir}\n#\tipappend 1\n\
  LABEL debug\n\tMENU LABEL Linux Diskless Client (DXS ${ldcver} - \
  ^Debug Mode)\n\tKERNEL vmlinuz\n\
  \tappend vga=normal initrd=initrd debug linuxrc=trace dhcp \
  nfsroot=${server}:${rootdir}\n\tipappend 1\nLABEL local\n\
  \tMENU LABEL Boot ^local device next in BIOS order\n\
  \tlocalboot 0\nLABEL halt\n\tMENU LABEL Power ^off machine\n\
  \tKERNEL $server::${rootdir}/boot/atxoff.com" \
          >> ${rootdir}/boot/pxelinux.cfg/default

  # create simple dhcpd.conf example file
  echo "writing a ISC dhcpd configuration example (/etc/dhcpd.conf.example)"
  echo -e "# /etc/dhcpd.conf  - file created by $0 version $version"\
          > /etc/dhcpd.conf.example
  echo -e "# Example configuration file for ISC dhcpd\n#\n\
  # (c) Dirk von Suchodoletz <dirk@goe.net>, 2004\n#\n\
  # -- user defined vendor options --\n\
  option o128 code 128              = string;\n\
  option o129 code 129              = string;\n\
  option menudflts code 160         = string;\n\
  option motdline1 code 184         = string;\n\
  option menuline1 code 192         = string;\n\
  option menuline2 code 193         = string;\n\
  option menuline3 code 194         = string;\n\
  option bootlocal-script code 221  = string;\n\
  option language code 222          = string;\n\
  option start-x code 223           = string;\n\
  option start-snmp code 224        = string;\n\
  option start-sshd code 225        = string;\n\
  option start-xdmcp code 226       = string;\n\
  option start-cron code 227        = string;\n\
  option crontab-entries code 228   = string;\n\
  option start-rwhod code 229       = string;\n\
  option start-printdaemon code 230 = string;\n\
  option tex-enable code 232        = string;\n\
  option netbios-workgroup code 233 = string;\n\
  option vmware code 234            = string;\n\
  option hw-mouse code 252          = string;\n\
  option hw-graphic code 253        = string;\n\
  option hw-monitor code 254        = string;\n\n\
  # -- global options --\n\n\
  option o128                        E4:45:74:68:00:00;\n\
  deny                               unknown-clients;\n\
  default-lease-time                 160000;\n\
  max-lease-time                     200000;\n\
  use-host-decl-names                on;\n\
  option dhcp-max-message-size       1024;\n\
  ddns-update-style                  none;\n\n\
  # -- client specific --\n\n\
  subnet $netname netmask $netmask {\n\
      server-identifier $server;\n
      next-server $server;\n}\n\
  # please check the settings, some of them have to be changed!\n\
  group {\n\
      filename \"${rootdir}/boot/bootimg\";\n\
      option root-path \"${rootdir}\";\n\
      option broadcast-address $broadcast;\n\
  #   option routers X.Y.Z.254;\n\
      option domain-name-servers $server;\n\
      option domain-name \"dxs.local\";\n\
  #   option desktop-session \"winxptest\";\n\
  #   option lpr-servers $server;\n\
  #   option x-display-manager $server;\n\
  #   option netbios-name-servers netbios-ns;\n\
  #   option ntp-servers ntps1,ntps2,ntps3;\n\
      option start-x \"direct\";\n    option start-xdmcp \"kdm\";\n\
      option start-rwhod \"yes\";\n    option start-cron \"no\";\n\
      option start-snmp \"yes\";\n    option netbios-workgroup \"tux-net\";\n\
      option tex-enable \"yes\";\n    option vmware \"no\";\n\n\
      host ldc01 {\n\
          hardware ethernet 00:00:00:00:01:01;\n\
          if substring (option vendor-class-identifier,0,3)=\"PXE\"\n\
              { filename \"${rootdir}/boot/pxelinux.0\"; }\n\
  #       option hw-monitor \"30-65kHz 50-90Hz \ 1280x1024\";\n\
          option bootlocal-script \"\";\n\
          option o129 \"vga=0x0317 apic\";\n\
  #       fixed-address $netname;\n    }\n}" >> /etc/dhcpd.conf.example
}

# ##### MAIN #####

# how this script was called
called=`basename $0`
if [ "x$called" = "xd2dl" ]; then
        d2dl="yes";
        [ "x$1" = "x-u" ] && {
          update="yes";
          rsexcl="--exclude-from=exclude.local --exclude=/etc/passwd* --exclude=/etc/shadow* "; }
fi

check_files

configure

create_installation

create_initrd

if [ ! $update ] ; then 
  configure_pxe
fi