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#!/bin/bash
#
# Description:  universal (distro independent) generator for initial
#               ramdisks for linux diskless clients (stage2 system
#               setup)
#
# Author(s):    Dirk von Suchodoletz <dirk@goe.net>, 02-12-2006
#               Nico Dietrich
#               Felix Endres
#               <mj0@uni-freiburg.de> (xenbr), 12-12-2006
#
# Copyright:    (c) 2003 - 2006 - RZ Universitaet Freiburg
#               (c) 2006 - openslx.org project
#
# Version:      0.4.5d

# debug level of script itself
DEBUG=1
# debug level of the initramfs (to trigger the addition of specific
# binaries and kernel modules)
IRFSDEBUG=1
COMETCEXCL="XF86Config*\nissue*\nmtab*\nfstab*\n"
COMDIRINDXS="/tmp/scratch /var/lib/nobody"

# distro specific settings read from configuration file
# D_SYSCONFDIR - system wide configuration settings in /etc - sysconfig in
# SuSE and RedHat, default in Debian and Ubuntu, conf.d in Gentoo
# D_ETCEXCL - list of files, wildcards to be excluded from /etc when using
# bind mounts
# D_DIRINBINDMNT - lists of directories to be created in bind mounted rw
# part of the client filesystem
# D_RODIRSINRW - ReadOnly Directories in RW part of filesystem to save on
# TempFS usage
# D_DIRINDXS - directories in client filesystem which should be present
# anyhow
# D_BINDMNT - any code which is specific in bind mount environment
# D_RCDIRS - runlevel directories relative to /etc
# D_HWMODTOIGNORE -

# just ensure that variables are set and the user gets an idea if
# something fails
D_SYSCONFDIR="<set in ~/distro-config/distro file>"
D_ETCEXCL="<set in ~/distro-config/distro file>"
D_BINDMPTS="<set in ~/distro-config/distro file>"
D_DIRINBINDMNT="<set in ~/distro-config/distro file>"
D_RODIRSINRW="<set in ~/distro-config/distro file>"
D_DIRINDXS="<set in ~/distro-config/distro file>"
D_BINDMNT="<set in ~/distro-config/distro file>"
D_INITDIR="<set in ~/distro-config/distro file>"
D_INITBOOTD="<set in ~/distro-config/distro file>"
D_RCDIRS="<set in ~/distro-config/distro file>"
D_RCDIRSINRW="<set in ~/distro-config/distro file>"
D_INITSCRIPTS="<set in ~/distro-config/distro file>"
D_XF86CONFFILE="<set in ~/distro-config/distro file>"
D_XFONTPATH="<set in ~/distro-config/distro file>"
D_DEFAULTCOUNTRY="<set in ~/distro-config/distro file>"
# read in the global settings
SLX_CONFIG_PATH=@@@SLX_CONFIG_PATH@@@
[ -f $SLX_CONFIG_PATH/settings.default ] && \
   . $SLX_CONFIG_PATH/settings.default
[ -f $SLX_CONFIG_PATH/settings.local ] && \
   . $SLX_CONFIG_PATH/settings.local

#########################################################################
# End of global variable declaration, nothing needed to be changed at
# default below that line

usage()
{
  echo -e "mkdxsinitrd  [-bgh] [-k kernel version] [-i path/file] \
[-f module(s)] [-n module(s)] [-m module(s)] [-r path] [-s theme]\n\
[-c machine-setup]"
  echo "OPTIONEN"
  echo "  -c location of client configuration file (machine-setup)"
  echo "  -g     Benutze glibc als Basisbibliothek in der ramdisk."
  echo "  -b     Use busybox instead of separate binaries."
  echo "  -h     Zeige Informationen zur Benutzung."
  echo "  -k Kernelversion"
  echo "        mkdxsinitrd  versucht  die  aktuellste  Kernelversion zu finden."
  echo "        Falls  dies  nicht  klappt,  oder  eine   andere   Kernelversion"
  echo "        gewünscht  ist  kann  diese  hier angegeben werden (funktioniert"
  echo "        natürlich nur für auf dem  Hostsystem  vorhandene  Kernelversion"
  echo "        nen)."
  echo "  -i path/file"
  echo "        Optionale  Angabe wo die erstellte ramdisk hingeschrieben werden"
  echo "        soll."
  echo "  -f Modulliste"
  echo "        Kernelmodule die benutzt werden  sollen  um  das  Rootfilesystem"
  echo "        über das dem Netzwerk zu mounten (z.B. nfs, nbd dnbd)."
  echo "  -n Modulliste"
  echo "        Kernelmodule zum Betrieb der Clientnetzwerkkarten (z.B. e100 tg3"
  echo "        via-rhine)."
  echo "  -m Modulliste"
  echo "        Kernelmodule (misc) die nicht von -n bzw. -f abgedeckt werden"
  echo "        (z.B. xenbr for xen network bridge)."
  echo "  -r path"
  echo "        Pfad zum Wurzelverzeichnis des zu exportierenden  Betriebsystems"
  echo "        (z.B. /export/10.1)."
  echo "  -s theme (for splash)"
  echo "  -d debug (add special modules to initramfs)"
  echo "  -D Name"
  echo "        Name der Distribution der Betriebsystemvorlage"
  echo "  -v Version"
  echo "        Versionskennung der Distribution der Betriebsystemvorlage"
  exit 0
}

# 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 correct settings of SLX-Variables
  if [ "x" == "x$SLX_BASE_PATH" ]; then
    if [ "x$SLX_CONFIG_PATH" == "x@@@SLX_CONFIG_PATH@@@" ]; then
       echo "Please make sure you install the Open SLX Software properly,"
       echo "i.e. install it using the provided Makefile. Thanks."
    else
       echo "Essential configuration is missing. Please verify"
       echo "existence and correctness of $SLX_CONFIG_PATH/settings.default"
    fi
    exit 1
  fi
}


# replaces which command to find executables inside ROOTDIR
binfinder()
{
local PROGRAM="$1"
local RET=1
for ELEMENT in bin sbin usr/bin usr/sbin usr/local/bin \
               usr/local/sbin usr/bin/X11; do
  if [ -f "${ROOTDIR}/$ELEMENT/$PROGRAM" ] && \
     [ -x "${ROOTDIR}/$ELEMENT/$PROGRAM" ]; then
    printf '%s\n' "${ROOTDIR}/$ELEMENT/$PROGRAM"
    RET=0
    break
  fi
done
return $RET
}

# copy some binary to given destination. Takes binary in $1 and
# destination in $2
cobi()
{
local DEST=$2
local FPTB=`binfinder $1`
if [ -z ${FPTB} ] ; then
  return 1;
elif [ -L ${FPTB} ] ; then
  # do not copy the link but the binary the link points to
  local LINKDEST=`ls -la ${FPTB} | sed -e "s,.* ,,"`
  case $LINKDEST in
    /*) FPTB=${ROOTDIR}${LINKDEST}
	;;
    *) ;;
  esac
  cp ${FPTB} ${INSTDIR}/${DEST}
else
  cp ${FPTB} ${INSTDIR}/${DEST}
fi
# get an idea which libraries are needed
# fixme: that might not work if executed on different architecture than
# client root is
chroot ${ROOTDIR} ldd ${FPTB#${ROOTDIR}*} >> ${INSTDIR}/tmp/libraries
# possible solution: use the server binary, get library names and look
# them up manually - fixme: does ldd understand foreign architecture
# binaries
}

# replace copy
repco()
{
local FILENAME=$1
DATE=`date +%m-%d-%Y`
# do not forget to define all variables which should be replaced within
# the start and configuration scripts. All comment lines will be deleted.
if [ -d ${SLX_SHARE_PATH}/initramfs/${FILENAME} ] ; then
  [ -d ${INSTDIR}/${FILENAME} ] || mkdir -p ${INSTDIR}/${FILENAME}
else
  if file ${SLX_SHARE_PATH}/initramfs/${FILENAME}| grep "ELF" &>/dev/null ; then
    cp ${SLX_SHARE_PATH}/initramfs/${FILENAME} ${INSTDIR}/${FILENAME}
  elif [ -L ${SLX_SHARE_PATH}/initramfs/${FILENAME} ] ; then
    cp -a ${SLX_SHARE_PATH}/initramfs/${FILENAME} ${INSTDIR}/${FILENAME%/*}
  else
    sed -e "s,@@@INSTDIR@@@,${INSTDIR},g;s,@@@KERNVER@@@,${KERNVER},g" \
        -e "s,@@@DISTRO@@@,${DISTRO}-${DISTRO_VER},g;s,@@@NETIF@@@,${NET_IF},g" \
        -e "s,@@@NWMODULES@@@,${NWMODULES},g" \
        -e "s,@@@COMDIRINDXS@@@,${COMDIRINDXS},g" \
        -e "s,@@@COMETCEXCL@@@,${COMETCEXCL},g" \
        -e "s,@@@DATE@@@,${DATE},g;/^#[^!].*/d" \
          ${SLX_SHARE_PATH}/initramfs/${FILENAME} >> ${INSTDIR}/${FILENAME}
     # ugly hack for creating a general slx config file instead of "patching"
     # the stage3 init
     echo -e "slxconf_date=${DATE}\nslxconf_kernver=${KERNVER}\nslxconf_listnwmod=\"${NWMODULES}\"\nslxconf_distro=${DISTRO}-${DISTRO_VER}" > ${INSTDIR}/etc/sysconfig/slxconfig
    [ -x busybox -a "$use_busybox" = 1 ] && sed -e "s,^#!/bin/sh,#!/bin/ash," \
      -i ${INSTDIR}/${FILENAME}
  fi
fi
}

copy_distro_stuff() {
  # copy first the default distro dependent configuration (variables) and
  # function files, then append to each the distro/version specific file
  # variables, functions set in default might that way be overwritten by
  # definitions in distro/version specific files
  cat ${SLX_SHARE_PATH}/distro-specs/$1/config-default >${INSTDIR}/etc/sysconfig/config
  cat ${SLX_SHARE_PATH}/distro-specs/$1/config-$2 >>${INSTDIR}/etc/sysconfig/config
  #[ -f $SLX_CONFIG_PATH/settings.default ] && \
  #   cat $SLX_CONFIG_PATH/settings.default >>${INSTDIR}/etc/sysconfig/config
  #[ -f $SLX_CONFIG_PATH/settings.local ] && \
  #   cat $SLX_CONFIG_PATH/settings.local >>${INSTDIR}/etc/sysconfig/config
  cat ${SLX_SHARE_PATH}/distro-specs/$1/functions-default >${INSTDIR}/etc/distro-functions
  cat ${SLX_SHARE_PATH}/distro-specs/$1/functions-$2 >>${INSTDIR}/etc/distro-functions
  # would be cool not to copy .svn here ...
  # fixme!! works only for etc directories. If dir exists then next copy places
  # file into the existing dir
  cp -a distro-specs/$1/files-default ${INSTDIR}/etc/sysconfig/files 2>/dev/null
  # ... so remove them afterwards ...
  find ${INSTDIR}/etc/sysconfig/files \
    -regex ".*/\..*" -exec rm -rf {} 2>/dev/null \;
}

# This function makes the directory of this script to the present working
# directory
# Does also work when called by symbolic links (even for nested links).
goto_script_dir()
{
  [ $DEBUG -ge 2 ] && echo "Aufgerufen wurde $0, checking if it is a link"
  calleddetails=`ls -l $0` # get the file flags (e.g. lrwxrwxrwx)
  [ $DEBUG -ge 2 ] && echo $calleddetails

  calleddir=${0%/*}  # Strip the filename from path
  [ $DEBUG -ge 2 ] && echo "Wechsele ins Verzeichnis des aufgerufenen scripts/links ($calleddir)"
  cd $calleddir

  while index=`expr index "$calleddetails" "l"`;
        [ $index -eq 1 ]; do

    [ $DEBUG -ge 2 ] && echo "It is a link"
    target=`echo $calleddetails | awk '{print $NF}'`
    [ $DEBUG -ge 2 ] && echo "The target of the link is: $target"
    hasslash=`expr index "$target" "/"`
    if [ $hasslash -ne 0 ]; then
        targetpath=${target%/*} # extract the pathname
        [ $DEBUG -ge 2 ] && echo "Following link to $targetpath"
        cd $targetpath
    else
        [ $DEBUG -ge 2 ] && echo "It is in the same directory as the link"
    fi
    targetfile=`basename $target`
    [ $DEBUG -ge 2 ] && echo "The target file of the link is: $targetfile"
    calleddetails=`ls -l $targetfile` # get the file flags (e.g. lrwxrwxrwx)
    [ $DEBUG -ge 2 ] && echo $calleddetails
  done
  [ $DEBUG -ge 2 ] && pwd

}

# add a bootsplash image to the initial ramdisk, only SuSE at the moment
# theming
add_theme() {

theme="${theme}"
splashsizes="640x480 800x600 1024x768 1280x1024 1400x1050 1600x1200"
splash_image=
splash_bin=$(chroot $ROOTDIR which splash)
themes_dir="${SLX_SHARE_PATH}/themes/openslx/bootsplash"
if [ -d "${SLX_SHARE_PATH}/themes/${theme}/bootsplash" ]; then
  themes_dir="${SLX_SHARE_PATH}/themes/${theme}/bootsplash"
elif [ -d "$ROOTDIR/etc/bootsplash/themes/${theme}" ]; then
  themes_dir="/etc/bootsplash/themes/${theme}"
elif [ -d "$ROOTDIR/usr/share/splash/themes/${theme}" ]; then
  themes_dir="/usr/share/splash/themes/${theme}"
fi

#fixme: very ugly ;)
mkdir -p $ROOTDIR/tmp/bootsplash
cp -a $themes_dir/* $ROOTDIR/tmp/bootsplash
themes=${themes_dir%bootsplash}
echo -e "\n\tUsing ${themes} for themes.\n"
themes_dir=$ROOTDIR/tmp/bootsplash

if [ -n "$splashsizes" -a -n "$splash_bin" ]; then
  if [ -n "$themes_dir" -a \
     -d "$themes_dir" -o -L "$themes_dir" ]; then
    for size in $splashsizes; do
      bootsplash_picture="$themes_dir/images/bootsplash-$size.jpg"
      cfgname="$themes_dir/config/bootsplash-$size.cfg"
      if [ ! -r $cfgname ] ; then
        echo " disabled for resolution $size "
      elif [ ! -r $bootsplash_picture ] ; then
        echo " no image for resolution $size "
      else
        echo -n "${splash_image:+, }$THEME ($size)"
        splash_image=" $splash_image ${cfgname#$ROOTDIR} "
      fi
    done
    echo
  else
    echo "no theme selected"
  fi
fi

# Include bootsplash image
for image in $splash_image; do
  # fixme: ugly hack to have the splash binary
  chroot $ROOTDIR $splash_bin -s -f $image >> ${INSTDIR}/bootsplash
done

rm -rf $ROOTDIR/tmp/bootsplash
# kdm/Xdialog theme
cp -a ${themes}* ${INSTDIR}/usr/share/themes
}


#########################################################################
# End of function declaration

while getopts :bhgk:c:i:r:o:s:f:n:m:Sut:d:v:I:V:a: a ; do
  case $a in
    \:|\?)
    case $OPTARG in
      c)  echo "-c requires location of machine-setup file";;
      k)  echo "-k requires kernel version parameter";;
      i)  echo "-i requires initrd path parameter";;
      f)  echo "-f requires file system module list parameter";;
      n)  echo "-n requires network module list parameter";;
      m)  echo "-m requires misc module list parameter";;
      r)  echo "-r requires root dir parameter";;
      s)  echo "-s may require theme name";;
      t)  echo "-t requires tmp dir parameter";;
      d)  echo "-d requires debug level (integer)";;
      D)  echo "-D requires linux Distribution name";;
      v)  echo "-v requires linux distribution version";;
      I)  echo "-I requires network interface parameter";;
      V)  echo "-V requires an executable to run inside linuxrc";;
      *)  echo "Unknown option: -$OPTARG"
          echo "Try mkinitrd -h";;
    esac
    exit 1
    ;;
    b)  use_busybox=1;;
    c)  CLCONFFILE=$OPTARG;;
    g)  use_glibc=1;;
    k)  KERNVER=$OPTARG;;
    i)  INITRD_PATH=$OPTARG ;;
    f)  FSMODULES=$OPTARG;;
    n)  NWMODULES=$OPTARG ;;
    m)  MISCMODULES=$OPTARG ;;
    r)  ROOTDIR=$OPTARG;;
    s)  theme=$OPTARG;;
    t)  INSTDIR=$OPTARG;;
    d)  IRFSDEBUG=$OPTARG;;
    D)  DISTRO=$OPTARG;;
    v)  DISTRO_VER=$OPTARG;;
    I)  NET_IF=$OPTARG;;         # Not in use
    a)  acpi_dsdt="$OPTARG";;    # Not in use
    S)  use_selinux=1;;          # Not in use
    l)  local_init_script="$OPTARG";; # use for pre/postinit.local?
    u)  sysfs_root=1             # Not in use
	    use_udev=
	    ;;
    h)  usage;;
  esac
done
shift $(expr $OPTIND - 1)


#########################################################################
# End of parameter, argument interpretation

# Check for superuser id 
precheck
#Change to the directory this script is located in
goto_script_dir

# set temporary setup directory, clean it and setup basic directory
# structure
if [ -z "$INSTDIR" ] ; then
  INSTDIR=/tmp/slx-tmpramfs
fi
rm -rf ${INSTDIR}
mkdir -p ${INSTDIR}/{dev,proc,tmp,mnt,root,bin,sys,lib}
ln -s /bin ${INSTDIR}/sbin
mkdir -p ${INSTDIR}/usr/share
# needed for KNOPPIX hwsetup tool not to be confused with ${D_SYSCONFDIR}
mkdir -p ${INSTDIR}/etc/sysconfig

# if still no distro name set, try to find it using significant files

if [ -z "${DISTRO}" ] ; then
  if [ -e ${ROOTDIR}/etc/SuSE-release ] ; then
    DISTRO=suse
    DISTRO_VER=`grep "VERSION" ${ROOTDIR}/etc/SuSE-release | sed "s/.*= //"`
  elif [ -e ${ROOTDIR}/etc/lsb-release ] ; then
    . ${ROOTDIR}/etc/lsb-release
    DISTRO=${DISTRIB_ID}
    DISTRO_VER=${DISTRIB_RELEASE}
  elif [ -e ${ROOTDIR}/etc/debian_version ] ; then
	if [ $(grep Ubuntu /etc/issue | wc -l) -gt 0 ]; then
		DISTRO=Ubuntu
		DISTRO_VER=`sed 's/[Uu]buntu \([0-9]*\.[0-9]*\).*/\1/' /etc/issue`
	else
    		DISTRO=debian
    		DISTRO_VER=`cat ${ROOTDIR}/etc/debian_version`
	fi
  elif [ -e ${ROOTDIR}/etc/gentoo-release ] ; then
    DISTRO=gentoo
    # any idea on the versioning scheme??
    DISTRO_VER=""
  else
    echo -e "Could not detect client distribution type and version. Please \
specify\nas command line argument (-d <distro-name> -v <distro-version>)"
    exit 1;
  fi
fi

# unify the description of distribution and its version
case "${DISTRO}" in
  Debian*|debian*|Sarge*|sarge*)
    DISTRO=debian
    case "${DISTRO_VER}" in
      Sarge*|sarge*|3.1*|*)
        DISTRO_VER=3.1
	mkdir -p ${INSTDIR}/lib/udev
        cp -r ${ROOTDIR}/lib/udev/* ${INSTDIR}/lib/udev/
      ;;
    esac
  ;;
  Ubuntu*|ubuntu*)
    DISTRO=ubuntu
    case "${DISTRO_VER}" in
      Breezy*|breezy*)
        DISTRO_VER=5.10
        cp ${ROOTDIR}/lib/libnss_compat.so.2 ${INSTDIR}/lib
      ;;
     Dapper*|dapper*)
	DISTRO_VER=6.06
      ;;
    esac
    ;;
  Gentoo*|gentoo*)
    DISTRO=gentoo
    case "${DISTRO_VER}" in
      2005*|*)
        DISTRO_VER=2005.1
      ;;
    esac
  ;;
  SuSE*|suse*|Suse*|SuSe*|SUSE*|*)
    DISTRO=suse
    case "${DISTRO_VER}" in
      9*)
        DISTRO_VER=9.3
      ;;
      10.0)
        DISTRO_VER=10.0
      ;;
      10*)
        DISTRO_VER=10.1
      ;;
    esac

  ;;
esac
# at this point ${DISTRO} ${DISTRO_VER} should be fixed
copy_distro_stuff ${DISTRO} ${DISTRO_VER}

# hotplug/udev type and related stuff
cp -a ${ROOTDIR}/etc/udev ${INSTDIR}/etc

# binary and corresponding library copies could be avoided if a small
# initial ramdisk environment of its own is generated from busybox,
# dietlibc and similar, see odlx project page ...

# devices needed rather early (copied from /tmp to /dev in init)
mknod ${INSTDIR}/tmp/console c 5 1 &>/dev/null
mknod ${INSTDIR}/tmp/null c 1 3 &>/dev/null
mknod ${INSTDIR}/tmp/kmsg c 1 11 &>/dev/null
mknod ${INSTDIR}/tmp/ctl b 241 255 &>/dev/null
# suse specific, but might be usable with other distros too
mknod ${INSTDIR}/tmp/bootsplash p &>/dev/null

# test for the existance of busybox
if [ "$use_busybox" = 1 ]; then
  [ -x busybox ] || {
    unset use_busybox
    echo "You wanted to include busybox, but did not provide it in \
  initrd/ directory."; }
fi
if [ -n "$use_busybox" ] ; then
  cp busybox ${INSTDIR}/bin
  for bbins in [ arping ash cat chmod chown chroot cp date \
        dd df dmesg echo expr fdisk free hwclock insmod ip \
        kill killall ln ls lsmod mkdir mke2fs mkfs.ext2 \
        mkfs.ext3 mknod modprobe mount mv ps rdate rm rmmod \
        sed sort switch_root tar test tftp time udhcpc \
        umount uname usleep vconfig vi; do
    ln -s /bin/busybox ${INSTDIR}/bin/$bbins
  done
  # fake the sh link in busybox environment
  echo -e "#!/bin/ash\n/bin/ash \$@" > ${INSTDIR}/bin/sh
  chmod a+x ${INSTDIR}/bin/sh
else
  # find and copy a shell to be used within initialramfs
  for bbins in bash ash sh; do
    if cobi ${bbins} bin ; then
      ln -fs ${bbins} ${INSTDIR}/bin/sh
      [ "${bbins}" != "ash" ] && ln -fs ${bbins} ${INSTDIR}/bin/ash
      [ "${bbins}" != "bash" ] && ln -fs ${bbins} ${INSTDIR}/bin/bash
      break
    else echo "Binary not found (${bbins})"; fi
  done

  # find and copy ip setup binaries
  for bbins in ip ifconfig; do
    if cobi ${bbins} bin ; then
      [ "${bbins}" = "ifconfig" ] && cobi route bin
      break
    else echo "Binary not found"; fi
  done

  # needed standard binaries (in init, servconfig, hwautocfg, ... scripts)
  for bbins in \
      cat chmod chown chroot cp expr fdisk gzip killall ln ls mkdir \
      mkfs.ext2 modprobe mount rmmod sed sort rm tar umount
    do
    cobi ${bbins} bin || echo "Program ${bbins} not found"
  done

  # binaries useful for debugging purposes
  if [ $IRFSDEBUG -gt 2 ] ; then
    for bbins in \
      date lsmod lsof ps strace time
    do
      cobi ${bbins} bin || echo "Program ${bbins} not found"
    done
  fi

  # tftp client binary for configuration via file - get machine-setup per
  # tftp from dhcp (or specified other) server
  for tftp in atftp tftp ; do
    binfinder $tftp && break;
  done
  cobi $tftp bin || echo "Program ${tftp} not found"
  cp /lib/libnss_files.so.2 ${INSTDIR}/lib
fi

# one of the dhcp clients
for dhcp in dhclient dhcpcd pump ipconfig ; do
  binfinder $dhcp && break;
done
cobi $dhcp bin
mkdir -p ${INSTDIR}/var/{lib,run}

# type of hotplug/udev/dev (for etc directories see above!!)
for bbins in udev udevd udevstart udevtrigger udevsend
  do
  cobi ${bbins} bin &>/dev/null || \
  echo "Program ${bbins} not found; could be most probably ignored"
done

# if nfs is used as clients root filesystem
cobi portmap bin
mkdir -p ${INSTDIR}/var/lib/nfs/state

# if nbd or dnbd is used as clients root filesystem
if [ -n "${FSMODULES}" ] ; then
for i in ${FSMODULES}; do
  case "$i" in
    dnbd)
      cobi dnbd-client bin
    ;;
    nbd)
      cobi nbd-client bin
    ;;
  esac
done
fi

# if unionfs
cobi unionctl bin &>/dev/null || \
  echo "Program unionctl not found; could be ignored ..."

# if cowloop
cobi cowdev bin &>/dev/null || \
  echo "Program cowdev not found; could be ignored ..."

# if iscsi (or just with modules)??
# cobi iscsiadm iscsid bin &>/dev/null || \
#  echo "Program cowdev not found; could be ignored ..."

# distro specific additional stuff
case "${DISTRO}" in
  debian*)
    cp ${ROOTDIR}/lib/libnss_compat.so.2 ${INSTDIR}/lib;;
esac

# add needed libraries depending on choosen binaries. use chroot
# on ldd, otherwise the detection does not work properly. ldd has to be
# static linked binary
# fixme: procedure might have to be changed
for lib in `cat ${INSTDIR}/tmp/libraries 2>/dev/null | \
  sed -e "s,tls,,;s,i686/cmov,," \
  -ne 's:\t\(.* => \)\?\(/.*\) (0x[0-9a-f]*):\2:p' | sort -u` ; do
  baselib=`basename ${lib}`
  test -e  ${INSTDIR}/lib/${baselib} || \
    cp /${ROOTDIR}/${lib} ${INSTDIR}/lib
done
rm ${INSTDIR}/tmp/libraries

# add kernel modules and dependency files
if [ -z "$KERNVER" ] ; then
  KERNVER=`ls -l ${ROOTDIR}/boot/vmlinuz | grep vmlinuz | sed "s/.*vmlinuz-//"`
fi
if [ -z "$KERNVER" ] ; then
  KERNVER=`ls -l ${ROOTDIR}/vmlinuz | grep vmlinuz | sed "s/.*vmlinuz-//"`
fi
# if no vmlinuz found, go for vmlinuz-x.yz.uv...
if [ -z "$KERNVER" ] ; then
  KERNVER=`ls -lt ${ROOTDIR}/boot/vmlinuz* | grep vmlinuz | sed -n "1,1s/.*vmlinuz-//p"`
  echo "No vmlinuz-link found. Using kernel version "$KERNVER
fi

if [ -z "$KERNVER" ] ; then
  echo "No kernel version set or detected - please use the -k flag! Exiting..."
  exit 1
fi

if [ -z "$NWMODULES" ] ; then
  #NWMODULES="forcedeth e1000 e100 tg3 via-rhine r8169 pcnet32 8139too 8139cp"
  NWMODULES="forcedeth e1000 e100 tg3 via-rhine r8169 pcnet32"
fi
if [ -z "$FSMODULES" ] ; then
  FSMODULES="nbd nfs"
fi
if [ -z "$INITRD_PATH" ] ; then
  INITRD_PATH="${ROOTDIR}/tmp/slxinitramfs.gz"
fi

# define modules to put into initial ramdisk for debugging
#DEBUGMODULES="uhci_hcd usbhid"
if [ $IRFSDEBUG -gt 1 ] ; then
  DEBUGMODULES="uhci-hcd ohci-hcd usbhid"
else
  DEBUGMODULES=""
fi

# put all needed modules into initial ramdisk
mkdir -p ${INSTDIR}/lib/modules/${KERNVER}
for module in af_packet unix ${NWMODULES} ${FSMODULES} ${MISCMODULES} \
  ${DEBUGMODULES}; do
  mod=`cd /${ROOTDIR}; find "lib/modules/${KERNVER}" -name ${module}.ko \
2>/dev/null`

  if [ -n "$mod" ] ; then
    mpath=${INSTDIR}/${mod%/*}
    mkdir -p ${mpath}
    cp ${ROOTDIR}/$mod ${mpath}
    # fixmee!! selection of dependent modules could be handled a little bit
    # more clever
    rdirprefix="${ROOTDIR}/lib/modules/${KERNVER}/kernel"
    ddirprefix="${INSTDIR}/lib/modules/${KERNVER}/kernel"
    case "$module" in
      e100|8139too|via-rhine|sis900|epic100|sundance|8139cp|eepro100|pcnet32)
        cp ${rdirprefix}/drivers/net/mii.ko \
           ${ddirprefix}/drivers/net &>/dev/null
      ;;
      nfs)
        # create directory structure for modules needed and copy them
        # to the proper place (as expected by modprobe/modules.dep)
	mkdir -p ${ddirprefix}/net/sunrpc
	mkdir -p ${ddirprefix}/fs/lockd ${ddirprefix}/fs/nfs_common
        cp ${rdirprefix}/net/sunrpc/sunrpc.ko \
	  ${ddirprefix}/net/sunrpc &>/dev/null
	cp ${rdirprefix}/fs/lockd/lockd.ko \
          ${ddirprefix}/fs/lockd &>/dev/null
	cp ${rdirprefix}/fs/nfs_common/nfs_acl.ko \
	  ${ddirprefix}/fs/nfs_common &>/dev/null
      ;;
      ext3)
        mkdir -p ${ddirprefix}/fs/jbd
        cp ${rdirprefix}/fs/jbd/jbd.ko \
          ${ddirprefix}/fs/jbd
      ;;
      netloop)
        # needed for xen stuff
        cobi brctl bin &>/dev/null || \
          echo "Program brctl not found; could be ignored ..."
        mkdir -p ${ddirprefix}/drivers/xen/netback
        mkdir -p ${ddirprefix}/net/bridge
        cp ${rdirprefix}/drivers/xen/netback/netloop.ko \
          ${ddirprefix}/drivers/xen/netback &>/dev/null
        cp ${rdirprefix}/net/bridge/bridge.ko \
          ${ddirprefix}/net/bridge &>/dev/null
      ;;
      iscsi_tcp)
        # iscsi modules
        # cobi cobi iscsiadm iscsid bin &>/dev/null
        #mkdir -p ${ddirprefix}/drivers/scsi
        #for i in scsi_mod scsi_transport_iscsi libiscsi iscsi_tcp; do 
        #  cp ${rdirprefix}/drivers/scsi/$i.ko
        #    ${ddirprefix}/drivers/scsi
        #done
      ;;
    esac
  fi
done
cp ${ROOTDIR}/lib/modules/${KERNVER}/modules.* \
  ${INSTDIR}/lib/modules/${KERNVER}

# initial ramdisk scripts: init, functions, servconfig, hwautocfg, ...
# copy and replace variable names
for dirs in `find ${SLX_SHARE_PATH}/initramfs/* ! -regex ".*/\..*"` ; do
  repco ${dirs##*initramfs/}
done
chmod 755 ${INSTDIR}/init \
  ${INSTDIR}/bin/{servconfig,hwautocfg,screenres,dhcpmkconfig}

# add the common default client configuration file - just to ensure to
# have all major variables defined. !!These settings are most probably
# are overwritten by fileget in stage3 within initramfs!!
# fixme! it should be possible to provide the filename and location via
# parameter
if [ -n "${CLCONFFILE}" ] ; then
  cp ${CLCONFFILE} ${INSTDIR}/etc/machine-setup
  echo "Using ${CLCONFFILE}"
elif [ -f ${SLX_PRIVATE_PATH}/config/default/initramfs/machine-setup ] ; then
  cp ${SLX_PRIVATE_PATH}/config/default/initramfs/machine-setup \
    ${INSTDIR}/etc/machine-setup
  echo "Using ${SLX_PRIVATE_PATH}/config/default/initramfs/machine-setup"
# use the installed default machine-setup.default
elif [ -f ${SLX_SHARE_PATH}/templates/machine-setup.default ] ; then
  cp ${SLX_SHARE_PATH}/templates/machine-setup.default \
    ${INSTDIR}/etc/machine-setup
  echo "Using ${SLX_SHARE_PATH}/templates/machine-setup.default"
# just compatibility for older versions
elif [ -f /etc/dxs/client.cfg/machine-setup.default ] ; then
  cp /etc/dxs/client.cfg/machine-setup.default \
    ${INSTDIR}/etc/machine-setup
  echo "Using /etc/dxs/client.cfg/machine-setup.default"
# fixme: dirty hack if the installer does not creates a normal file
elif [ -f /etc/dxs/client.cfg/machine-setup.default.new ] ; then
  cp /etc/dxs/client.cfg/machine-setup.default.new \
    ${INSTDIR}/etc/machine-setup
elif [ -f ../installer/default_files/machine-setup.default ] ; then
  cp ../installer/default_files/machine-setup.default \
    ${INSTDIR}/etc/machine-setup
  echo "Warning: Using ../installer/default_files/machine-setup.default"
else
  #inserted password for root for debugging purposes
  # fixme - set more default values?!
  echo -e "# default for machine-setup does not exist\n# root logins are \
disabled\nroot_pw='"'$1$T7VD/mmQ$aCP1WEaWplEsHe9khv4kK.'"'" \
    > ${INSTDIR}/etc/machine-setup
fi

# custom hardware configuration files pcitable.local and Cards.local
# fixme!! New source for these files (instead of templates)!
if [ -f ${SLX_SHARE_PATH}/templates/pcitable.local ] ; then
  cat ${SLX_SHARE_PATH}/templates/pcitable.local >> \
    ${INSTDIR}/usr/share/hwdata/pcitable
fi
if [ -f ${SLX_SHARE_PATH}/templates/Cards.local ] ; then
  cat ${SLX_SHARE_PATH}/templates/Cards.local >> \
    ${INSTDIR}/usr/share/hwdata/Cards
fi

# finally copy user-supplied preinit files. The client specific one
# overwrites the system default one. postinit.local may be part of
# fileget tgz (in stage3)
for cfg in default/initramfs/preinit.local \
           ${DISTRO}-${DISTRO_VER}/initramfs/preinit.local \
           default/initramfs/postinit.local \
           ${DISTRO}-${DISTRO_VER}/initramfs/postinit.local ; do
  test -f ${SLX_PRIVATE_PATH}/config/$cfg && \
    cp ${SLX_PRIVATE_PATH}/config/$cfg ${INSTDIR}/bin
done

# remove unneeded debug info, fixme not really tested yet
strip  ${INSTDIR}/bin/*  ${INSTDIR}/lib/* &>/dev/null

#########################################################################
# End of file copy procedures

[ -n "${theme}" ] && add_theme

# finally create the compressed initial ramdisk cpio archive
pushd . > /dev/null 2>&1
  cd ${INSTDIR}
  find . ! -name "*~" | cpio -H newc --create | gzip -9 > $INITRD_PATH
popd > /dev/null 2>&1