make_slackware_live.sh
#!/bin/bash

# Copyright 2014, 2015, 2016, 2017, 2018  Eric Hameleers, Eindhoven, NL 
# All rights reserved.
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
#   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
#   IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
#   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
#   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
#   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
#   OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#   SUCH DAMAGE.
# -----------------------------------------------------------------------------
#
# This script creates a live image for a Slackware OS.
# Features:
# - boots using isolinux/extlinux on BIOS, or grub on UEFI.
# - requires kernel >= 4.0 which supports multiple lower layers in overlay
# - uses squashfs to create compressed modules out of directory trees
# - uses overlayfs to bind multiple squashfs modules together
# - you can add your own modules into ./addons/ or ./optional subdirectories.
# - persistence is enabled when writing the ISO to USB stick using iso2usb.sh.
# - LUKS encrypted homedirectory is optional on USB stick using iso2usb.sh.
#
# -----------------------------------------------------------------------------

# Version of the Live OS generator:
VERSION="1.3.0"

# Kernel version (useful if there are two versions of kernel installed):
KVER=""

# Directory where our live tools are stored:
LIVE_TOOLDIR=${LIVE_TOOLDIR:-"$(cd $(dirname $0); pwd)"}

# Load the optional configuration file:
CONFFILE=${CONFFILE:-"${LIVE_TOOLDIR}/$(basename $0 .sh).conf"}
if [ -f ${CONFFILE} ]; then
  echo "-- Loading configuration file."
  . ${CONFFILE}
fi

# Set to "YES" to send error output to the console:
DEBUG=${DEBUG:-"YES"}

# Set to "YES" in order to delete everything we have,
# and rebuild any pre-existing .sxz modules from scratch:
FORCE=${FORCE:-"NO"}

# Set to 32 to be more compatible with the specs. Slackware uses 4 by default:
BOOTLOADSIZE=${BOOTLOADSIZE:-4}

# If you want to include an EFI boot image for 32bit Slackware then you
# need a recompiled grub which supports 32bit EFI (Slackware's grub will not).
# A patch for grub.SlackBuild to enable this feature can be found
# in the source directory. Works for both the 32bit and the 64bit grub package.
# Therefore we disable 32bit EFI by default. Enable at your own peril:
EFI32=${EFI32:-"NO"}

# Set to YES if you want to use the SMP kernel on 32bit Slackware:
SMP32=${SMP32:-"NO"}

# Include support for NFS root (PXE boot), will increase size of the initrd:
NFSROOTSUP=${NFSROOTSUP:-"NO"}

# Use xorriso instead of mkisofs/isohybrid to create the ISO:
USEXORR=${USEXORR:-"NO"}

# Timestamp:
THEDATE=$(date +%Y%m%d)

#
# ---------------------------------------------------------------------------
#

# The live username of the image:
LIVEUID=${LIVEUID:-"live"}

# The root and live user passwords of the image:
ROOTPW=${ROOTPW:-"toor"}
LIVEPW=${LIVEPW:-"live"}

# Distribution name:
DISTRO=${DISTRO:-"slackware"}

# Custom name for the host:
LIVE_HOSTNAME=${LIVE_HOSTNAME:-"antiS"}

# What type of Live image?
# Choices are: SLACKWARE, XFCE, KDE4, PLASMA5, MATE, CINNAMON, DLACK, STUDIOWARE
LIVEDE=${LIVEDE:-"XFCE"}

# What runlevel to use if adding a DE like: XFCE, KDE4, PLASMA5 etc...
RUNLEVEL=${RUNLEVEL:-4}

# Use the graphical syslinux menu (YES or NO)?
SYSMENU=${SYSMENU:-"YES"}

# This variable can be set to a comma-separated list of package series.
# The squashfs module(s) for these package series will then be re-generated.
# Example commandline parameter: "-r l,kde,kdei"
REFRESH=""

# The amount of seconds we want the init script to wait to give the kernel's
# USB subsystem time to settle. The default value of mkinitrd is "1" which
# is too short for use with USB sticks but "1" is fine for CDROM/DVD.
WAIT=${WAIT:-"5"}

#
# ---------------------------------------------------------------------------
#

# Who built the live image:
BUILDER=${BUILDER:-"MDrights"}

# Console font to use with syslinux for better language support:
CONSFONT=${CONSFONT:-"ter-i16v.psf"}

# The ISO main directory:
LIVEMAIN=${LIVEMAIN:-"liveslak"}

# Marker used for finding the Slackware Live files:
MARKER=${MARKER:-"SLACKWARELIVE"}

# The filesystem label we will be giving our ISO:
MEDIALABEL=${MEDIALABEL:-"LIVESLAK"}

# The name of the custom package list containing the generic kernel.
# This package list is special because the script will also take care of
# the ISO boot setup when processing the MINLIST package list:
MINLIST=${MINLIST:-"min"}

# For x86_64 you can add multilib:
MULTILIB=${MULTILIB:-"NO"}

# Use the '-G' parameter to generate the ISO from a pre-populated directory
# containing the live OS files:
ONLY_ISO="NO"

# The name of the directory used for storing persistence data:
PERSISTENCE=${PERSISTENCE:-"persistence"}

# Slackware version to use (note: this won't work for Slackware <= 14.1):
SL_VERSION=${SL_VERSION:-"current"}

# Slackware architecture to install:
SL_ARCH=${SL_ARCH:-"x86_64"}

# Root directory of a Slackware local mirror tree;
# You can define custom repository location (must be in local filesystem)
# for any module in the file ./pkglists/<module>.conf:
SL_REPO=${SL_REPO:-"/var/cache/liveslak/Slackware"}
DEF_SL_REPO=${SL_REPO}

# The rsync URI of our default Slackware mirror server:
SL_REPO_URL=${SL_REPO_URL:-"rsync.osuosl.org::slackware"}
DEF_SL_REPO_URL=${SL_REPO_URL}

# List of Slackware package series - each will become a squashfs module:
SEQ_SLACKWARE="tagfile:a,ap,d,e,f,k,kde,kdei,l,n,t,tcl,x,xap,xfce,y pkglist:slackextra"

# Stripped-down Slackware with XFCE as the Desktop Environment:
# - each series will become a squashfs module:
SEQ_XFCEBASE="${MINLIST},noxbase,x_base,xapbase,xfcebase"

# Stripped-down Slackware with KDE4 as the Desktop Environment:
# - each series will become a squashfs module:
SEQ_KDE4BASE="pkglist:${MINLIST},noxbase,x_base,xapbase,kde4base"

# List of Slackware package series with Plasma5 instead of KDE 4 (full install):
# - each will become a squashfs module:
#SEQ_PLASMA5="tagfile:a,ap,d,e,f,k,l,n,t,tcl,x,xap,xfce,y pkglist:alien,alienrest,kde4plasma5,plasma5,slackextra,slackpkgplus"
SEQ_PLASMA5="tagfile:a,ap,d,e,f,k,l,n,t,tcl,x,xap,xfce,y pkglist:alien,alienrest,plasma5,slackextra,slackpkgplus"

# List of Slackware package series with MSB instead of KDE 4 (full install):
# - each will become a squashfs module:
SEQ_MSB="tagfile:a,ap,d,e,f,k,l,n,t,tcl,x,xap,xfce,y pkglist:mate,slackextra,slackpkgplus"

# List of Slackware package series with Cinnamon instead of KDE4 (full install):
# - each will become a squashfs module:
SEQ_CIN="tagfile:a,ap,d,e,f,k,l,n,t,tcl,x,xap,xfce,y pkglist:cinnamon,slackextra,slackpkgplus"

# Slackware package series with Gnome3/systemd instead of KDE4 (full install):
# - each will become a squashfs module:
SEQ_DLACK="tagfile:a,ap,d,e,f,k,l,n,t,tcl,x,xap pkglist:dlackware,slackextra,systemd"

# List of Slackware package series with StudioWare (full install):
# - each will become a squashfs module:
SEQ_STUDW="tagfile:a,ap,d,e,f,k,kde,l,n,t,tcl,x,xap,xfce,y pkglist:slackextra,slackpkgplus,studioware"

# -- START: Used verbatim in upslak.sh -- #
# List of kernel modules required for a live medium to boot properly;
# Lots of HID modules added to support keyboard input for LUKS password entry:
KMODS=${KMODS:-"squashfs:overlay:loop:xhci-pci:ohci-pci:ehci-pci:xhci-hcd:uhci-hcd:ehci-hcd:mmc-core:mmc-block:sdhci:sdhci-pci:sdhci-acpi:usb-storage:hid:usbhid:i2c-hid:hid-generic:hid-apple:hid-cherry:hid-logitech:hid-logitech-dj:hid-logitech-hidpp:hid-lenovo:hid-microsoft:hid_multitouch:jbd:mbcache:ext3:ext4:isofs:fat:nls_cp437:nls_iso8859-1:msdos:vfat:ntfs"}

# Network kernel modules to include for NFS root support:
NETMODS="kernel/drivers/net"

# Network kernel modules to exclude from above list:
NETEXCL="appletalk arcnet bonding can dummy.ko hamradio hippi ifb.ko irda macvlan.ko macvtap.ko pcmcia sb1000.ko team tokenring tun.ko usb veth.ko wan wimax wireless xen-netback.ko"
# -- END: Used verbatim in upslak.sh -- #

# Firmware for wired network cards required for NFS root support:
NETFIRMWARE="3com acenic adaptec bnx tigon e100 sun kaweth tr_smctr cxgb3"

# If any Live variant needs additional 'append' parameters, define them here,
# either using a variable name 'KAPPEND_<LIVEDE>', or by defining 'KAPPEND' in the .conf file:
KAPPEND_SLACKWARE=""
KAPPEND_STUDIOWARE="threadirqs"

# Add CACert root certificates yes/no?
ADD_CACERT=${ADD_CACERT:-"NO"}

# Default language selection for the Live OS; this can be changed with the
# coomandline switch "-l":
DEF_LANG="us"

#
# ---------------------------------------------------------------------------
#

# What compression to use for the initrd?
# Default is xz with CRC32 (the kernel's XZ decoder does not support CRC64),
# the alternative is gzip (which adds  ~30% to the initrd size).
COMPR=${COMPR:-"xz --check=crc32"}

# What compressors are available?
SQ_COMP_AVAIL="gzip lzma lzo xz zstd"

# What module exttensions do we accept:
SQ_EXT_AVAIL="sxz sfz szs xzm"

# Compressor optimizations:
declare -A SQ_COMP_PARAMS_DEF
SQ_COMP_PARAMS_DEF[gzip]=""
SQ_COMP_PARAMS_DEF[lzma]=""
SQ_COMP_PARAMS_DEF[lzo]=""
SQ_COMP_PARAMS_DEF[xz]="-b 512k -Xdict-size 100%"
SQ_COMP_PARAMS_DEF[zstd]="-b 512k -Xcompression-level 16"
declare -A SQ_COMP_PARAMS_OPT
SQ_COMP_PARAMS_OPT[gzip]=""
SQ_COMP_PARAMS_OPT[lzma]=""
SQ_COMP_PARAMS_OPT[lzo]=""
SQ_COMP_PARAMS_OPT[xz]="-b 1M"
SQ_COMP_PARAMS_OPT[zstd]="-b 1M -Xcompression-level 19"

# What compression to use for the squashfs modules?
# Default is xz, alternatives are gzip, lzma, lzo, zstd:
SQ_COMP=${SQ_COMP:-"xz"}

# Mount point where Live filesystem is assembled (no storage requirements):
LIVE_ROOTDIR=${LIVE_ROOTDIR:-"/mnt/slackwarelive"}

# Directory where the live ISO image will be written:
OUTPUT=${OUTPUT:-"/tmp"}

# Directory where we create the staging directory:
TMP=${TMP:-"/tmp"}

# Toplevel directory of our staging area (this needs sufficient storage):
LIVE_STAGING=${LIVE_STAGING:-"${TMP}/slackwarelive_staging"}

# Work directory where we will create all the temporary stuff:
LIVE_WORK=${LIVE_WORK:-"${LIVE_STAGING}/temp"}

# Directory to be used by overlayfs for data manipulation,
# needs to be a directory in the same filesystem as ${LIVE_WORK}:
LIVE_OVLDIR=${LIVE_OVLDIR:-"${LIVE_WORK}/.ovlwork"}

# Directory where we will move the kernel and create the initrd;
# note that a ./boot directory will be created in here by installpkg:
LIVE_BOOT=${LIVE_BOOT:-"${LIVE_STAGING}/${LIVEMAIN}/bootinst"}

# Directories where the squashfs modules will be created:
LIVE_MOD_SYS=${LIVE_MOD_SYS:-"${LIVE_STAGING}/${LIVEMAIN}/system"}
LIVE_MOD_ADD=${LIVE_MOD_ADD:-"${LIVE_STAGING}/${LIVEMAIN}/addons"}
LIVE_MOD_OPT=${LIVE_MOD_OPT:-"${LIVE_STAGING}/${LIVEMAIN}/optional"}

# ---------------------------------------------------------------------------
# Define some functions.
# ---------------------------------------------------------------------------

# Clean up in case of failure:
cleanup() {
  # Clean up by unmounting our loopmounts, deleting tempfiles:
  echo "--- Cleaning up the staging area..."
  sync
  umount ${LIVE_ROOTDIR}/sys 2>${DBGOUT} || true
  umount ${LIVE_ROOTDIR}/proc 2>${DBGOUT} || true
  umount ${LIVE_ROOTDIR}/dev 2>${DBGOUT} || true
  umount ${LIVE_ROOTDIR} 2>${DBGOUT} || true
  # Need to umount the squashfs modules too:
  umount ${LIVE_WORK}/*_$$ 2>${DBGOUT} || true

  rmdir ${LIVE_ROOTDIR} 2>${DBGOUT}
  rmdir ${LIVE_WORK}/*_$$ 2>${DBGOUT}
  #rm ${LIVE_MOD_OPT}/* 2>${DBGOUT} || true
  #rm ${LIVE_MOD_ADD}/* 2>${DBGOUT} || true
}
trap 'echo "*** $0 FAILED at line $LINENO ***"; cleanup; exit 1' ERR INT TERM

# Uncompress the initrd based on the compression algorithm used:
uncompressfs () {
  if $(file "${1}" | grep -qi ": gzip"); then
    gzip -cd "${1}"
  elif $(file "${1}" | grep -qi ": XZ"); then
    xz -cd "${1}"
  fi
}

#
# Return the full pathname of first package found below $2 matching exactly $1:
#
full_pkgname() {
  PACK=$1
  TOPDIR=$2
  # Perhaps I will use this more readable code in future:
  #for FL in $(find ${TOPDIR} -name "${PACK}-*.t?z" 2>/dev/null) ; do
  #  # Weed out package names starting with "$PACK"; we want exactly "$PACK":
  #  if [ "$(echo $FL |rev |cut -d- -f4- |cut -d/ -f1 |rev)" != "$PACK" ]; then
  #    continue
  #  else
  #    break
  #  fi
  #done
  #echo "$FL"
  echo "$(find ${TOPDIR} -name "${PACK}-*.t?z" 2>/dev/null |grep -E "\<${PACK//+/\\+}-[^-]+-[^-]+-[^-]+.t?z" |head -1)"
}

#
# Find packages and install them into the temporary root:
#
function install_pkgs() {
  if [ -z "$1" ]; then
    echo "-- function install_pkgs: Missing module name."
    cleanup
    exit 1
  fi
  if [ ! -d "$2" ]; then
    echo "-- function install_pkgs: Target directory '$2' does not exist!"
    cleanup
    exit 1
  elif [ ! -f "$2/${MARKER}" ]; then
    echo "-- function install_pkgs: Target '$2' does not contain '${MARKER}' file."
    echo "-- Did you choose the right installation directory?"
    cleanup
    exit 1
  fi

  # Define the default Slackware repository, can be overridden here:
  SL_REPO_URL="${DEF_SL_REPO_URL}"
  SL_REPO="${DEF_SL_REPO}"
  SL_PKGROOT="${DEF_SL_PKGROOT}"
  SL_PATCHROOT="${DEF_SL_PATCHROOT}"

  if [ "$3" = "local" -a -d ${LIVE_TOOLDIR}/local${DIRSUFFIX}/$1 ]; then
    echo "-- Installing local packages from subdir 'local${DIRSUFFIX}/$1'."
    #installpkg --terse --root "$2" "local${DIRSUFFIX}/$1/*.t?z"
    ROOT="$2" upgradepkg --install-new --reinstall "local${DIRSUFFIX}/$1/*.t?z"
  else
    # Load package list and (optional) custom repo info:
    if [ "$3" = "tagfile" ]; then
      PKGCONF="__tagfile__"
      PKGFILE=${SL_PKGROOT}/${1}/tagfile
    else
      PKGCONF=${LIVE_TOOLDIR}/pkglists/$(echo $1 |tr [A-Z] [a-z]).conf
      PKGFILE=${LIVE_TOOLDIR}/pkglists/$(echo $1 |tr [A-Z] [a-z]).lst
      if [ -f ${PKGCONF} ]; then
        echo "-- Loading repo info for '$1'."
        . ${PKGCONF}
      fi
    fi

    if [ "${SL_REPO}" = "${DEF_SL_REPO}" ]; then
      # We need only one release from the Slackware package mirror;
      # This must *not* end with a '/' :
      SELECTION="${DISTRO}${DIRSUFFIX}-${SL_VERSION}"
    else
      SELECTION=""
    fi
    if [ ! -d ${SL_REPO} -o -z "$(find ${SL_PKGROOT} -type f 2>/dev/null)" ]; then
      # Oops... empty local repository. Let's see if we can rsync from remote:
      echo "** Slackware package repository root '${SL_REPO}' does not exist or is empty!"
      RRES=1
      if [ -n "${SL_REPO_URL}" ]; then
        mkdir -p ${SL_REPO}
        # Must be a rsync URL!
        echo "-- Rsync-ing repository content from '${SL_REPO_URL}' to local directory '${SL_REPO}'..."
        echo "-- This can be time-consuming.  Please wait."
        rsync -rlptD --no-motd --exclude=source ${RSYNCREP} ${SL_REPO_URL}/${SELECTION} ${SL_REPO}/
        RRES=$?
        echo "-- Done rsync-ing from '${SL_REPO_URL}'."
      fi
      if [ $RRES -ne 0 ]; then
        echo "** Exiting."
        cleanup
        exit 1
      fi
    fi

    if [ -f ${PKGFILE} ]; then
      echo "-- Loading package list '$PKGFILE'."
    else
      echo "-- Mandatory package list file '$PKGFILE' is missing! Exiting."
      cleanup
      exit 1
    fi

    for PKGPAT in $(cat ${PKGFILE} |grep -v -E '^ *#|^$' |cut -d: -f1); do
      # Extract the name of the package to install:
      PKG=$(echo $PKGPAT |cut -d% -f2)
      # Extract the name of the potential package to replace/remove:
      # - If there is no package to replace then the 'cut' will make
      #   REP equal to PKG.
      # - If PKG is empty then this is a request to remove the package.
      REP=$(echo $PKGPAT |cut -d% -f1)
      if [ -z "${PKG}" ]; then
        # Package removal:
        ROOT="$2" removepkg "${REP}"
      else
        # Package install/upgrade:
        # Look in ./patches ; then ./${DISTRO}$DIRSUFFIX ; then ./extra
        # Need to escape any '+' in package names such a 'gtk+2'.
        if [ ! -z "${SL_PATCHROOT}" ]; then
          FULLPKG=$(full_pkgname ${PKG} ${SL_PATCHROOT})
        else
          FULLPKG=""
        fi
        if [ "x${FULLPKG}" = "x" ]; then
          FULLPKG=$(full_pkgname ${PKG} ${SL_PKGROOT})
        else
          echo "-- $PKG found in patches"
        fi
        if [ "x${FULLPKG}" = "x" ]; then
          # One last attempt: look in ./extra
          FULLPKG=$(full_pkgname ${PKG} $(dirname ${SL_PKGROOT})/extra)
        fi

        if [ "x${FULLPKG}" = "x" ]; then
          echo "-- Package $PKG was not found in $(dirname ${SL_REPO}) !"
        else
          # Determine if we need to install or upgrade a package:
          for INSTPKG in $(ls -1 "$2"/var/log/packages/${REP}-* 2>/dev/null |rev |cut -d/ -f1 |cut -d- -f4- |rev) ; do
            if [ "$INSTPKG" = "$REP" ]; then
              break
            fi
          done
          if [ "$INSTPKG" = "$REP" ]; then
            if [ "$PKG" = "$REP" ]; then
              ROOT="$2" upgradepkg --reinstall "${FULLPKG}"
            else
              # We need to replace one package (REP) with another (FULLPKG):
              ROOT="$2" upgradepkg "${REP}%${FULLPKG}"
            fi
          else
            installpkg --terse --root "$2" "${FULLPKG}"
          fi
        fi
      fi
    done
  fi

  if [ "$TRIM" = "doc" -o "$TRIM" = "mandoc" -o "$LIVEDE" = "XFCE"  ]; then
    # Remove undesired (too big for a live OS) document subdirectories:
    (cd "${2}/usr/doc" && find . -type d -mindepth 2 -maxdepth 2 -exec rm -rf {} \;)
    rm -rf "$2"/usr/share/gtk-doc
    rm -rf "$2"/usr/share/help
    find "$2"/usr/share/ -type d -name doc |xargs rm -rf
    # Remove residual bloat:
    rm -rf "${2}"/usr/doc/*/html
    rm -f "${2}"/usr/doc/*/*.{html,css,xml,pdf,db,gz,bz2,xz,txt,TXT}
    # This will remove more bloat but won't touch the license texts:
    find "${2}"/usr/doc/ -type f -size +50k |xargs rm -f
    # Remove info pages:
    rm -rf "$2"/usr/info
  fi
  if [ "$TRIM" = "mandoc" ]; then
    # Also remove man pages:
    rm -rf "$2"/usr/man
  fi

  #if [ "$LIVEDE" = "XFCE"  ]; then
  if [ ! -z "$LIVEDE" ]; then
    # By pruning stuff that no one likely needs anyway,
    # we make room for packages we would otherwise not be able to add.
    # MySQL embedded is only used by Amarok:
    rm -f "$2"/usr/bin/mysql*embedded*
    # I am against torture:
    rm -f "$2"/usr/bin/smbtorture
    # Also remove some of the big unused/esoteric static libraries:
    rm -rf "$2"/usr/lib${DIRSUFFIX}/{libaudiofile,libgdk,libglib,libgtk}.a
    rm -rf "$2"/usr/lib${DIRSUFFIX}/{liblftp*,libnl}.a
    rm -rf "$2"/usr/lib${DIRSUFFIX}/libboost*test*.a
    # The llvm static libraries are not needed since we also ship the .so:
    rm -rf "$2"/usr/lib${DIRSUFFIX}/lib{LLVM,clang,lldb}*.a
    # And these are not needed for a simple XFCE ISO:
    rm -rf "$2"/usr/lib${DIRSUFFIX}/clang/*/lib/linux/*.a{,.syms}
    rm -f "$2"/usr/bin/{c-index-test,clang-change-namespace,clang-check,clang-func-mapping,clang-import-test,clang-include-fixer,clang-offload-bundler,clang-order-fields,clang-refactor,clang-query,clang-rename,clang-reorder-fields,clang-tidy,clangd,find-all-symbols,lldb-server,lldb-test,modularize}
    rm -rf "$2"/usr/lib${DIRSUFFIX}/d3d
    rm -rf "$2"/usr/lib${DIRSUFFIX}/guile/*/ccache/*
    rm -rf "$2"/usr/share/icons/HighContrast
    # Nor these datacenter NIC firmwares and drivers:
    rm -rf "$2"/lib/firmware/{bnx*,cxgb4,libertas,liquidio,mellanox,netronome,qed}
    rm -rf "$2"/lib/modules/*/kernel/drivers/infiniband
    rm -rf "$2"/lib/modules/*/kernel/drivers/net/ethernet/{broadcom/bnx*,chelsio,mellanox,netronome,qlogic}
    # Old wireless cards that eat space:
    rm -rf "$2"/lib/firmware/mrvl
    rm -rf "$2"/lib/modules/*/kernel/drivers/net/wireless/marvell
    # Mediatek ARM firmware:
    rm -rf "$2"/lib/firmware/vpu*.bin
    # Not needed:
    rm -rf "$2"/boot/System.map*
    # Depends on Qt:
    rm -f /usr/bin/wpa_gui /usr/share/applications/wpa_gui.desktop
    # Replace 3.2 MB splash with a symlink to a 33 kB file:
    if [ -e "$2"/usr/share/gimp/2.0/images/gimp-splash.png -a ! -L "$2"/usr/share/gimp/2.0/images/gimp-splash.png ]; then
      rm -rf "$2"/usr/share/gimp/2.0/images/gimp-splash.png
      ln -sf wilber.png "$2"/usr/share/gimp/2.0/images/gimp-splash.png
    fi
    # Replace big watch cursors with simpler ones:
    if [ -e "$2"/usr/share/icons/Adwaita/cursors/watch -a ! -L "$2"/usr/share/icons/Adwaita/cursors/watch ]; then
      rm -rf "$2"/usr/share/icons/Adwaita/cursors/{watch,left_ptr_watch}
      ln -sf left_ptr "$2"/usr/share/icons/Adwaita/cursors/watch
      ln -sf left_ptr "$2"/usr/share/icons/Adwaita/cursors/left_ptr_watch
    fi
    # Remove 9+ MB of brushes:
    rm -rf "$2"/usr/share/gimp/2.0/brushes/Fun
    # Get rid of useless documentation:
    rm -rf "$2"/usr/share/ghostscript/*/doc/
    # We don't need tests or examples:
    find "$2"/usr/ -type d -iname test |xargs rm -rf
    find "$2"/usr/ -type d -iname "example*" |xargs rm -rf
    # Get rid of most of the screensavers:
    KEEPXSCR="julia xflame xjack"
    if [ -d "${2}"/usr/libexec/xscreensaver ]; then
      cd "${2}"/usr/libexec/xscreensaver
        mkdir .keep
        for XSCR in ${KEEPXSCR} ; do
          mv ${XSCR} .keep/ 2>/dev/null
        done
        rm -rf [A-Za-z]*
        mv .keep/* . 2>/dev/null
        rm -rf .keep
      cd - 1>/dev/null
    fi
    # Remove unneeded languages from glibc:
    KEEPLANG="$(cat ${LIVE_TOOLDIR}/languages|grep -Ev "(^ *#|^$)"|cut -d: -f5)"
    for LOCALEDIR in /usr/lib${DIRSUFFIX}/locale /usr/share/i18n/locales /usr/share/locale ; do
      if [ -d "${2}"/${LOCALEDIR} ]; then
        cd "${2}"/${LOCALEDIR}
        mkdir .keep
        for KL in C ${KEEPLANG} ; do
          mv ${KL%%.utf8}* .keep/ 2>/dev/null   # en_US.utf8 -> en_US*
          mv ${KL%%_*} .keep/ 2>/dev/null       # en_US.utf8 -> en
        done
        rm -rf [A-Za-z]*
        mv .keep/* . 2>/dev/null
        rm -rf .keep
        cd - 1>/dev/null
      fi
    done
  fi

  # End install_pkgs
}


#
# Create the graphical multi-language syslinux boot menu:
#
function gen_bootmenu() {

  MENUROOTDIR="$1/menu"

  # Generate vesamenu structure - many files because of the selection tree.
  mkdir -p ${MENUROOTDIR}

  # Initialize an empty keyboard selection and language menu:
  rm -f ${MENUROOTDIR}/kbd.cfg
  rm -f ${MENUROOTDIR}/lang*.cfg

  # Generate main (US) vesamenu.cfg:
  cat ${LIVE_TOOLDIR}/menu.tpl | sed \
    -e "s/@KBD@/${DEF_KBD}/g" \
    -e "s/@LANG@/${DEF_LANG}/g" \
    -e "s/@ULANG@/${DEF_LANG^^}/g" \
    -e "s,@LOCALE@,${DEF_LOCALE},g" \
    -e "s/@CONSFONT@/$CONSFONT/g" \
    -e "s/@DIRSUFFIX@/$DIRSUFFIX/g" \
    -e "s/@DISTRO@/$DISTRO/g" \
    -e "s/@CDISTRO@/${DISTRO^}/g" \
    -e "s/@UDISTRO@/${DISTRO^^}/g" \
    -e "s/@KVER@/$KVER/g" \
    -e "s/@LIVEMAIN@/$LIVEMAIN/g" \
    -e "s/@MEDIALABEL@/$MEDIALABEL/g" \
    -e "s/@LIVEDE@/$(echo $LIVEDE |sed 's/BASE//')/g" \
    -e "s/@SL_VERSION@/$SL_VERSION/g" \
    -e "s/@VERSION@/$VERSION/g" \
    -e "s/@KAPPEND@/$KAPPEND/g" \
    > ${MENUROOTDIR}/vesamenu.cfg

  for LANCOD in $(cat ${LIVE_TOOLDIR}/languages |grep -Ev "(^ *#|^$)" |cut -d: -f1)
  do
    LANDSC=$(cat ${LIVE_TOOLDIR}/languages |grep "^$LANCOD:" |cut -d: -f2)
    KBD=$(cat ${LIVE_TOOLDIR}/languages |grep "^$LANCOD:" |cut -d: -f3)
    # First, create keytab files if they are missing:
    if [ ! -f ${MENUROOTDIR}/${KBD}.ktl ]; then
      keytab-lilo $(find /usr/share/kbd/keymaps/i386 -name "us.map.gz") $(find /usr/share/kbd/keymaps/i386 -name "${KBD}.map.gz") > ${MENUROOTDIR}/${KBD}.ktl
    fi
    # Add this keyboard to the keyboard selection menu:
    cat <<EOL >> ${MENUROOTDIR}/kbd.cfg
label ${LANCOD}
  menu label ${LANDSC}
  kbdmap menu/${KBD}.ktl
  kernel vesamenu.c32
  append menu/menu_${LANCOD}.cfg

EOL

    # Generate custom vesamenu.cfg for selected keyboard:
    cat ${LIVE_TOOLDIR}/menu.tpl | sed \
      -e "s/@KBD@/$KBD/g" \
      -e "s/@LANG@/$LANCOD/g" \
      -e "s/@CONSFONT@/$CONSFONT/g" \
      -e "s/@DIRSUFFIX@/$DIRSUFFIX/g" \
      -e "s/@DISTRO@/$DISTRO/g" \
      -e "s/@CDISTRO@/${DISTRO^}/g" \
      -e "s/@UDISTRO@/${DISTRO^^}/g" \
      -e "s/@KVER@/$KVER/g" \
      -e "s/@LIVEMAIN@/$LIVEMAIN/g" \
      -e "s/@MEDIALABEL@/$MEDIALABEL/g" \
      -e "s/@LIVEDE@/$(echo $LIVEDE |sed 's/BASE//')/g" \
      -e "s/@SL_VERSION@/$SL_VERSION/g" \
      -e "s/@VERSION@/$VERSION/g" \
      -e "s/@KAPPEND@/$KAPPEND/g" \
      > ${MENUROOTDIR}/menu_${LANCOD}.cfg

    # Generate custom language selection submenu for selected keyboard:
    for SUBCOD in $(cat ${LIVE_TOOLDIR}/languages |grep -Ev "(^ *#|^$)" |cut -d: -f1) ; do
      SUBKBD=$(cat ${LIVE_TOOLDIR}/languages |grep "^$SUBCOD:" |cut -d: -f3)
      cat <<EOL >> ${MENUROOTDIR}/lang_${LANCOD}.cfg
label $(cat ${LIVE_TOOLDIR}/languages |grep "^$SUBCOD:" |cut -d: -f1)
  menu label $(cat ${LIVE_TOOLDIR}/languages |grep "^$SUBCOD:" |cut -d: -f2)
EOL
      if [ "$SUBKBD" = "$KBD" ]; then
        echo "  menu default" >> ${MENUROOTDIR}/lang_${LANCOD}.cfg
      fi
      cat <<EOL >> ${MENUROOTDIR}/lang_${LANCOD}.cfg
  kernel /boot/generic
  append initrd=/boot/initrd.img $KAPPEND load_ramdisk=1 prompt_ramdisk=0 rw printk.time=0 kbd=$KBD tz=$(cat ${LIVE_TOOLDIR}/languages |grep "^$SUBCOD:" |cut -d: -f4) locale=$(cat ${LIVE_TOOLDIR}/languages |grep "^$SUBCOD:" |cut -d: -f5) xkb=$(cat ${LIVE_TOOLDIR}/languages |grep "^$SUBCOD:" |cut -d: -f6)

EOL
    done

  done
}

#
# Create the grub menu file for UEFI boot:
#
function gen_uefimenu() {

  GRUBDIR="$1"

  # Generate the grub menu structure - many files because of the selection tree.
  # I expect the directory to exist... but you never know.
  mkdir -p ${GRUBDIR}

  # Initialize an empty keyboard, language and timezone selection menu:
  rm -f ${GRUBDIR}/kbd.cfg
  rm -f ${GRUBDIR}/lang.cfg
  rm -f ${GRUBDIR}/tz.cfg

  # Generate main grub.cfg:
  cat ${LIVE_TOOLDIR}/grub.tpl | sed \
    -e "s/@KBD@/${DEF_KBD}/g" \
    -e "s,@TZ@,${DEF_TZ},g" \
    -e "s/@LANG@/${DEF_LANG}/g" \
    -e "s/@ULANG@/${DEF_LANG^^}/g" \
    -e "s/@LANDSC@/${DEF_LANDSC}/g" \
    -e "s/@LOCALE@/${DEF_LOCALE}/g" \
    -e "s/@CONSFONT@/$CONSFONT/g" \
    -e "s/@DIRSUFFIX@/$DIRSUFFIX/g" \
    -e "s/@DISTRO@/$DISTRO/g" \
    -e "s/@CDISTRO@/${DISTRO^}/g" \
    -e "s/@UDISTRO@/${DISTRO^^}/g" \
    -e "s/@KVER@/$KVER/g" \
    -e "s/@LIVEMAIN@/$LIVEMAIN/g" \
    -e "s/@MEDIALABEL@/$MEDIALABEL/g" \
    -e "s/@LIVEDE@/$(echo $LIVEDE |sed 's/BASE//')/g" \
    -e "s/@SL_VERSION@/$SL_VERSION/g" \
    -e "s/@VERSION@/$VERSION/g" \
    -e "s/@KAPPEND@/$KAPPEND/g" \
    > ${GRUBDIR}/grub.cfg

  # Set a default keyboard selection:
  cat <<EOL > ${GRUBDIR}/kbd.cfg
# Keyboard selection:
set default = $sl_lang

EOL

  # Set a default language selection:
  cat <<EOL > ${GRUBDIR}/lang.cfg
# Language selection:
set default = $sl_lang

EOL

  # Create the remainder of the selection menus:
  for LANCOD in $(cat languages |grep -Ev "(^ *#|^$)" |cut -d: -f1) ; do
    LANDSC=$(cat languages |grep "^$LANCOD:" |cut -d: -f2)
    KBD=$(cat languages |grep "^$LANCOD:" |cut -d: -f3)
    XKB=$(cat languages |grep "^$LANCOD:" |cut -d: -f6)
    LANLOC=$(cat languages |grep "^$LANCOD:" |cut -d: -f5)
    # Add this entry to the keyboard selection menu:
    cat <<EOL >> ${GRUBDIR}/kbd.cfg
menuentry "${LANDSC}" {
  set sl_kbd="$KBD"
  set sl_xkb="$XKB"
  set sl_lang="$LANDSC"
  export sl_kbd
  export sl_xkb
  export sl_lang
  configfile \$grubdir/grub.cfg
}

EOL

    # Add this entry to the language selection menu:
    cat <<EOL >> ${GRUBDIR}/lang.cfg
menuentry "${LANDSC}" {
  set sl_locale="$LANLOC"
  set sl_lang="$LANDSC"
  export sl_locale
  export sl_lang
  configfile \$grubdir/grub.cfg
}

EOL

  done

  # Create the timezone selection menu:
  TZDIR="/usr/share/zoneinfo"
  TZLIST=$(mktemp -t alientz.XXXXXX)
  if [ ! -f $TZLIST ]; then
    echo "*** Failed to create a temporary file!"
    cleanup
    exit 1
  fi
  # First, create a list of timezones:
  # This code taken from Slackware script:
  # source/a/glibc-zoneinfo/timezone-scripts/output-updated-timeconfig.sh
  # Author: Patrick Volkerding <volkerdi@slackware.com>
  # US/ first:
  ( cd $TZDIR
    find . -type f | xargs file | grep "timezone data" | cut -f 1 -d : | cut -f 2- -d / | sort | grep "^US/" | while read zone ; do
      echo "${zone}" >> $TZLIST
    done
  )
  # Don't list right/ and posix/ zones:
  ( cd $TZDIR
    find . -type f | xargs file | grep "timezone data" | cut -f 1 -d : | cut -f 2- -d / | sort | grep -v "^US/" | grep -v "^posix/" | grep -v "^right/" | while read zone ; do
      echo "${zone}" >> $TZLIST
    done
  )
  for TZ in $(cat $TZLIST); do
    # Add this entry to the keyboard selection menu:
    cat <<EOL >> ${GRUBDIR}/tz.cfg
menuentry "${TZ}" {
  set sl_tz="$TZ"
  export sl_tz
  configfile \$grubdir/grub.cfg
}

EOL
  rm -f $TZLIST

  done
}

#
# Create an ISO file from a directory's content:
#
create_iso() {
  TOPDIR=${1:-"${LIVE_STAGING}"}

  cd "$TOPDIR"

  # Tag the type of live environment to the ISO filename:
  if [ "$LIVEDE" = "SLACKWARE" ]; then
    ISOTAG=""
  else
    ISOTAG="-$(echo $LIVEDE |tr A-Z a-z)"
  fi

  # Determine whether we add UEFI boot capabilities to the ISO:
  if [ -f boot/syslinux/efiboot.img -a "$USEXORR" = "NO" ]; then
    UEFI_OPTS="-eltorito-alt-boot -no-emul-boot -eltorito-platform 0xEF -eltorito-boot boot/syslinux/efiboot.img"
  elif [ -f boot/syslinux/efiboot.img -a "$USEXORR" = "YES" ]; then
    UEFI_OPTS="-eltorito-alt-boot -e boot/syslinux/efiboot.img -no-emul-boot"
  else
    UEFI_OPTS=""
  fi

  # Time to determine the output filename, now that we know all the variables
  # and ensured that the OUTPUT directory exists:
  OUTFILE=${OUTFILE:-"${OUTPUT}/${DISTRO}${DIRSUFFIX}-live${ISOTAG}-${SL_VERSION}.iso"}
  if [ "$USEXORR" = "NO" ]; then
    mkisofs -o "${OUTFILE}" \
      -V "${MEDIALABEL}" \
      -R -J \
      -hide-rr-moved \
      -v -d -N \
      -no-emul-boot -boot-load-size ${BOOTLOADSIZE} -boot-info-table \
      -sort boot/syslinux/iso.sort \
      -b boot/syslinux/isolinux.bin \
      -c boot/syslinux/isolinux.boot \
      ${UEFI_OPTS} \
      -preparer "$(echo $LIVEDE |sed 's/BASE//') Live built by ${BUILDER}" \
      -publisher "The Slackware Linux Project - http://www.slackware.com/" \
      -A "${DISTRO^}-${SL_VERSION} for ${SL_ARCH} ($(echo $LIVEDE |sed 's/BASE//') Live $VERSION)" \
      -x ./$(basename ${LIVE_WORK}) \
      -x ./${LIVEMAIN}/bootinst \
      -x boot/syslinux/testing \
      .

    if [ "$SL_ARCH" = "x86_64" -o "$EFI32" = "YES" ]; then
      # Make this a hybrid ISO with UEFI boot support on x86_64.
      # On 32bit, the variable EFI32 must be explicitly enabled.
      isohybrid -u "${OUTFILE}"
    else
      isohybrid "${OUTFILE}"
    fi # End UEFI hybrid ISO.
  else
    echo "-- Using xorriso to generate the ISO and make it hybrid."
    xorriso -as mkisofs -o "${OUTFILE}" \
      -V "${MEDIALABEL}" \
      -J -joliet-long -r \
      -hide-rr-moved \
      -v -d -N \
      -b boot/syslinux/isolinux.bin \
      -c boot/syslinux/isolinux.boot \
      -boot-load-size ${BOOTLOADSIZE} -boot-info-table -no-emul-boot \
      ${UEFI_OPTS} \
      -isohybrid-mbr /usr/share/syslinux/isohdpfx.bin \
      -isohybrid-gpt-basdat \
      -preparer "$(echo $LIVEDE |sed 's/BASE//') Live built by ${BUILDER}" \
      -publisher "The Slackware Linux Project - http://www.slackware.com/" \
      -A "${DISTRO^}-${SL_VERSION} for ${SL_ARCH} ($(echo $LIVEDE |sed 's/BASE//') Live $VERSION)" \
      -x ./$(basename ${LIVE_WORK}) \
      -x ./${LIVEMAIN}/bootinst \
      -x boot/syslinux/testing \
      .
  fi

  # Return to original directory:
  cd - 1>/dev/null

  cd "${OUTPUT}"
    md5sum "$(basename "${OUTFILE}")" \
      > "$(basename "${OUTFILE}")".md5
  cd - 1>/dev/null
  echo "-- Live ISO image created:"
  echo "   - CDROM max size is 737.280.000 bytes (703 MB)"
  echo "   - DVD max size is 4.706.074.624 bytes (4.38 GB aka 4.7 GiB)"
  ls -l "${OUTFILE}"*

} # End of create_iso()

# ---------------------------------------------------------------------------
# Action!
# ---------------------------------------------------------------------------

while getopts "a:c:d:efhl:m:r:s:t:vz:GH:MO:R:X" Option
do
  case $Option in
    h )
	echo "----------------------------------------------------------------"
	echo "make_slackware_live.sh $VERSION"
	echo "----------------------------------------------------------------"
        echo "Usage:"
        echo "  $0 [OPTION] ..."
        echo "or:"
        echo "  SL_REPO=/your/repository/dir $0 [OPTION] ..."
        echo ""
        echo "The SL_REPO is the directory that contains the directory"
        echo "  ${DISTRO}-<RELEASE> or ${DISTRO}64-<RELEASE>"
        echo "Current value of SL_REPO : $SL_REPO"
        echo ""
        echo "The script's parameters are:"
        echo " -h                 This help."
        echo " -a arch            Machine architecture (default: ${SL_ARCH})."
        echo "                    Use i586 for a 32bit ISO, x86_64 for 64bit."
        echo " -c comp            Squashfs compression (default: ${SQ_COMP})."
        echo "                    Can be any of '${SQ_COMP_AVAIL}'."
        echo " -d desktoptype     SLACKWARE (full Slack), KDE4 basic,"
        echo "                    XFCE basic, PLASMA5, MATE, CINNAMON, DLACK."
        echo " -e                 Use ISO boot-load-size of 32 for computers."
        echo "                    where the ISO won't boot otherwise."
        echo " -f                 Forced re-generation of all squashfs modules,"
        echo "                    custom configurations and new initrd.img."
        echo " -l <localization>  Enable a different default localization"
        echo "                    (script-default is '${DEF_LANG}')."
        echo " -m pkglst[,pkglst] Add modules defined by pkglists/<pkglst>,..."
        echo " -r series[,series] Refresh only one or a few package series."
        echo " -s slackrepo_dir   Directory containing ${DISTRO^} repository."
        echo " -t <doc|mandoc>    Trim the ISO (remove man and/or doc)."
        echo " -v                 Show debug/error output."
        echo " -z version         Define your ${DISTRO^} version (default: $SL_VERSION)."
        echo " -G                 Generate ISO file from existing directory tree"
        echo " -H hostname        Hostname of the Live OS (default: $LIVE_HOSTNAME)."
        echo " -M                 Add multilib (x86_64 only)."
        echo " -O outfile         Custom filename for the ISO."
        echo " -R runlevel        Runlevel to boot into (default: $RUNLEVEL)."
        echo " -X                 Use xorriso instead of mkisofs/isohybrid."
        exit
        ;;
    a ) SL_ARCH="${OPTARG}"
        ;;
    c ) SQ_COMP="${OPTARG}"
        ;;
    d ) LIVEDE="$(echo ${OPTARG} |tr a-z A-Z)"
        ;;
    e ) BOOTLOADSIZE=32
        ;;
    f ) FORCE="YES"
        ;;
    l ) DEF_LANG="${OPTARG}"
        ;;
    m ) SEQ_ADDMOD="${OPTARG}"
        ;;
    r ) REFRESH="${OPTARG}"
        ;;
    s ) SL_REPO="${OPTARG}"
        ;;
    t ) TRIM="${OPTARG}"
        ;;
    v ) DEBUG="YES"
        ;;
    z ) SL_VERSION="${OPTARG}"
        ;;
    G ) ONLY_ISO="YES"
        ;;
    H ) LIVE_HOSTNAME="${OPTARG}"
        ;;
    M ) MULTILIB="YES"
        ;;
    O ) OUTFILE="${OPTARG}"
        OUTPUT="$(cd $(dirname "${OUTFILE}"); pwd)"
        ;;
    R ) RUNLEVEL=${OPTARG}
        ;;
    X ) USEXORR="YES"
        ;;
    * ) echo "You passed an illegal switch to the program!"
        echo "Run '$0 -h' for more help."
        exit
        ;;   # DEFAULT
  esac
done

# End of option parsing.
shift $(($OPTIND - 1))

#  $1 now references the first non option item supplied on the command line
#  if one exists.
# ---------------------------------------------------------------------------

[ "$DEBUG" = "NO" ] && DBGOUT="/dev/null" || DBGOUT="/dev/stderr"

# -----------------------------------------------------------------------------
# Some sanity checks first.
# -----------------------------------------------------------------------------

if [ -n "$REFRESH" -a "$FORCE" = "YES" ]; then
  echo ">> Please use only _one_ of the switches '-f' or '-r'!"
  echo ">> Run '$0 -h' for more help."
  exit 1
fi

if [ "$ONLY_ISO" = "YES" -a "$FORCE" = "YES" ]; then
  echo ">> Please use only _one_ of the switches '-f' or '-G'!"
  echo ">> Run '$0 -h' for more help."
  exit 1
fi

if [ $RUNLEVEL -ne 3 -a $RUNLEVEL -ne 4 ]; then
  echo ">> Default runlevel other than 3 or 4 is not supported."
  exit 1
fi

if [ "$SL_ARCH" != "x86_64" -a "$MULTILIB" = "YES" ]; then
  echo ">> Multilib is only supported on x86_64 architecture."
  exit 1
fi

if ! cat ${LIVE_TOOLDIR}/languages |grep -Ev '(^ *#|^$)' |grep -q ^${DEF_LANG}:
then
  echo ">> Unsupported language '${DEF_LANG}', select a supported language:"
  echo ">> $(cat ${LIVE_TOOLDIR}/languages |grep -Ev '(^ *#|^$)' |cut -d: -f1)."
  exit 1
else
  # Default locale, timezone and keyboard layout based on language choice:
  DEF_LANDSC="$(cat ${LIVE_TOOLDIR}/languages |grep ^${DEF_LANG}: |cut -d: -f2)"
  DEF_KBD="$(cat ${LIVE_TOOLDIR}/languages |grep ^${DEF_LANG}: |cut -d: -f3)"
  DEF_TZ="$(cat ${LIVE_TOOLDIR}/languages |grep ^${DEF_LANG}: |cut -d: -f4)"
  DEF_LOCALE="$(cat ${LIVE_TOOLDIR}/languages |grep ^${DEF_LANG}: |cut -d: -f5)"
  # Select sane defaults in case the language file lacks info:
  DEF_LANDSC="${DEF_LANDSC:-'us american'}"
  DEF_KBD="${DEF_KBD:-'us'}"
  DEF_TZ="${DEF_TZ:-'US/Pacific'}"
  DEF_LOCALE="${DEF_LOCALE:-'en_US.utf8'}"
fi

# Directory suffix, arch dependent:
if [ "$SL_ARCH" = "x86_64" ]; then
  DIRSUFFIX="64"
  EFIFORM="x86_64"
  EFISUFF="x64"
else
  DIRSUFFIX=""
  EFIFORM="i386"
  EFISUFF="ia32"
fi

# Package root directory, arch dependent:
SL_PKGROOT=${SL_REPO}/${DISTRO}${DIRSUFFIX}-${SL_VERSION}/${DISTRO}${DIRSUFFIX}
DEF_SL_PKGROOT=${SL_PKGROOT}

# Patches root directory, arch dependent:
SL_PATCHROOT=${SL_REPO}/${DISTRO}${DIRSUFFIX}-${SL_VERSION}/patches/packages
DEF_SL_PATCHROOT=${SL_PATCHROOT}

# Are all the required add-on tools present?
[ "$USEXORR" = "NO" ] && ISOGEN="mkisofs isohybrid" || ISOGEN="xorriso"
PROG_MISSING=""
for PROGN in mksquashfs unsquashfs grub-mkfont syslinux $ISOGEN installpkg upgradepkg keytab-lilo rsync ; do
  if ! which $PROGN 1>/dev/null 2>/dev/null ; then
    PROG_MISSING="${PROG_MISSING}--   $PROGN\n"
  fi
done
if [ ! -z "$PROG_MISSING" ] ; then
  echo "-- Required program(s) not found in PATH!"
  echo -e ${PROG_MISSING}
  echo "-- Exiting."
  exit 1
fi

# Test whether the compressor of choice is supported by the script:
if ! echo ${SQ_COMP_AVAIL} | grep -wq ${SQ_COMP} ; then
  echo "-- Compressor '${SQ_COMP}' not supported by liveslak!"
  echo "-- Select one of '${SQ_COMP_AVAIL}'"
  exit 1
else
  # Test whether the local squashfs-tools support the compressor:
  if ! mksquashfs 2>&1 | grep -Ewq "^[[:space:]]*${SQ_COMP}" ; then
    echo "-- Compressor '${SQ_COMP}' not supported by your 'mksquashfs'!"
    echo "-- Select another one from '${SQ_COMP_AVAIL}'"
    exit 1
  fi
fi
 
# What compression parameters to use?
# For our lean XFCE image we try to achieve max compression,
# at the expense of runtime latency:
if [ "$LIVEDE" = "XFCE" ] ; then
  SQ_COMP_PARAMS=${SQ_COMP_PARAMS:-"${SQ_COMP_PARAMS_OPT[${SQ_COMP}]}"}
else
  SQ_COMP_PARAMS=${SQ_COMP_PARAMS:-"${SQ_COMP_PARAMS_DEF[${SQ_COMP}]}"}
fi

# Check rsync progress report capability:
if [ -z "$(rsync  --info=progress2 2>&1 |grep "unknown option")" ]; then
  # Use recent rsync to display some progress:
  RSYNCREP="--no-inc-recursive --info=progress2"
else
  # Remain silent if we have an older rsync:
  RSYNCREP=" "
fi

# Create output directory for image file:
mkdir -p "${OUTPUT}"
if [ $? -ne 0 ]; then
  echo "-- Creation of output directory '${OUTPUT}' failed! Exiting."
  exit 1
fi

# If so requested, we generate the ISO image and immediately exit.
if [ "$ONLY_ISO" = "YES" -a -n "${LIVE_STAGING}" ]; then
  create_iso ${LIVE_STAGING}
  cleanup
  exit 0
else
  # Remove ./boot - it will be created from scratch later:
  rm -rf ${LIVE_STAGING}/boot
fi

# Cleanup if we are FORCEd to rebuild from scratch:
if [ "$FORCE" = "YES" ]; then
  echo "-- Removing old files and directories!"
  umount ${LIVE_ROOTDIR}/{proc,sys,dev} 2>${DBGOUT} || true
  umount ${LIVE_ROOTDIR} 2>${DBGOUT} || true
  rm -rf ${LIVE_STAGING}/${LIVEMAIN} ${LIVE_WORK} ${LIVE_ROOTDIR}
fi

# Create temporary directories for building the live filesystem:
for LTEMP in $LIVE_OVLDIR $LIVE_BOOT $LIVE_MOD_SYS $LIVE_MOD_ADD $LIVE_MOD_OPT ; do
  umount ${LTEMP} 2>${DBGOUT} || true
  mkdir -p ${LTEMP}
  if [ $? -ne 0 ]; then
    echo "-- Creation of temporary directory '${LTEMP}' failed! Exiting."
    exit 1
  fi
done

# Create the mount point for our Slackware filesystem:
if [ ! -d ${LIVE_ROOTDIR} ]; then
  mkdir -p ${LIVE_ROOTDIR}
  if [ $? -ne 0 ]; then
    echo "-- Creation of moint point '${LIVE_ROOTDIR}' failed! Exiting."
    exit 1
  fi
  chmod 775 ${LIVE_ROOTDIR}
else
  echo "-- Found an existing live root directory at '${LIVE_ROOTDIR}'".
  echo "-- Check the content and deal with it, then remove that directory."
  echo "-- Exiting now."
  exit 1
fi

# ----------------------------------------------------------------------------
# Install package series:
# ----------------------------------------------------------------------------

unset INSTDIR
RODIRS="${LIVE_BOOT}"
# Create the verification file for the install_pkgs function:
echo "${THEDATE} (${BUILDER})" > ${LIVE_BOOT}/${MARKER}

# Determine which module sequence we have to build:
case "$LIVEDE" in
  SLACKWARE) MSEQ="${SEQ_SLACKWARE}" ;;
       XFCE) MSEQ="${SEQ_XFCEBASE}" ;;
       KDE4) MSEQ="${SEQ_KDE4BASE}" ;;
    PLASMA5) MSEQ="${SEQ_PLASMA5}" ;;
       MATE) MSEQ="${SEQ_MSB}" ;;
   CINNAMON) MSEQ="${SEQ_CIN}" ;;
      DLACK) MSEQ="${SEQ_DLACK}" ;;
 STUDIOWARE) MSEQ="${SEQ_STUDW}" ;;
          *) if [ -n "${SEQ_CUSTOM}" ]; then
               # Custom distribution with a predefined package list:
               MSEQ="${SEQ_CUSTOM}"              
             else
               echo "** Unsupported configuration '$LIVEDE'"; exit 1
             fi
             ;;
esac

# Do we need to create/include additional module(s) defined by a pkglist:
if [ -n "$SEQ_ADDMOD" ]; then
  echo "-- Adding ${SEQ_ADDMOD}."
  MSEQ="${MSEQ} pkglist:${SEQ_ADDMOD}"
fi

# Do we need to include multilib?
# Add these last so we can easily distribute the module separately.
if [ "$MULTILIB" = "YES" ]; then
  echo "-- Adding multilib."
  MSEQ="${MSEQ} pkglist:multilib"
fi

echo "-- Creating liveslak ${VERSION} '${LIVEDE}' image (based on ${DISTRO^}-${SL_VERSION} ${SL_ARCH})."

# Module sequence can be composed of multiple sub-sequences:
for MSUBSEQ in ${MSEQ} ; do

  SL_SERIES="$(echo ${MSUBSEQ} |cut -d: -f2 |tr , ' ')"
  # MTYPE can be "tagfile", "local" or "pkglist"
  # If MTYPE was not specified, by default it is "pkglist":
  MTYPE="$(echo ${MSUBSEQ} |cut -d: -f1 |tr , ' ')"
  if [ "${MTYPE}" = "${SL_SERIES}" ]; then MTYPE="pkglist" ; fi

  # We prefix our own modules based on the source of the package list:
  case "$MTYPE" in
    tagfile) MNUM="0010" ;;
    pkglist) MNUM="0020" ;;
      local) MNUM="0030" ;;
          *) echo "** Unknown package source '$MTYPE'"; exit 1 ;;
  esac

for SPS in ${SL_SERIES} ; do

  INSTDIR=${LIVE_WORK}/${SPS}_$$
  mkdir -p ${INSTDIR}

  if [ "$FORCE" = "YES" -o $(echo ${REFRESH} |grep -wq ${SPS} ; echo $?) -eq 0 -o ! -f ${LIVE_MOD_SYS}/${MNUM}-${DISTRO}_${SPS}-${SL_VERSION}-${SL_ARCH}.sxz ]; then

    # Following conditions trigger creation of the squashed module:
    # - commandline switch '-f' was used, or;
    # - the module was mentioned in the '-r' commandline switch, or;
    # - the module does not yet exist.

    # Create the verification file for the install_pkgs function:
    echo "${THEDATE} (${BUILDER})" > ${INSTDIR}/${MARKER}

    echo "-- Installing the '${SPS}' series."
    umount ${LIVE_ROOTDIR} 2>${DBGOUT} || true
    mount -t overlay -o lowerdir=${RODIRS},upperdir=${INSTDIR},workdir=${LIVE_OVLDIR} overlay ${LIVE_ROOTDIR}

    # Install the package series:
    install_pkgs ${SPS} ${LIVE_ROOTDIR} ${MTYPE}
    umount ${LIVE_ROOTDIR} || true

    if [ "$SPS" = "a" -o "$SPS" = "${MINLIST}" ]; then

      # We need to take care of a few things first: 
#if [ -z "$KVER" ]; then
      if [ "$SL_ARCH" = "x86_64" -o "$SMP32" = "NO" ]; then
        KGEN=$(ls --indicator-style=none ${INSTDIR}/var/log/packages/kernel*modules* |grep -v smp |head -1 |rev | cut -d- -f3 |tr _ - |rev)
        KVER=$(ls --indicator-style=none ${INSTDIR}/lib/modules/ |grep -v smp |head -1)
      else
        KGEN=$(ls --indicator-style=none ${INSTDIR}/var/log/packages/kernel*modules* |grep smp |head -1 |rev | cut -d- -f3 |tr _ - |rev)
        KVER=$(ls --indicator-style=none ${INSTDIR}/lib/modules/ |grep smp |head -1)
      fi
#	fi

      if [ -z "$KVER" ]; then
        echo "-- Could not find installed kernel $KVER in '${INSTDIR}'! Exiting."
        cleanup
        exit 1
      else
        # Move the content of the /boot directory out of the minimal system,
        # this will be joined again using overlay:
        rm -rf ${LIVE_BOOT}/boot
        mv ${INSTDIR}/boot ${LIVE_BOOT}/
        # Squash the boot files into a module as a safeguard:
        mksquashfs ${LIVE_BOOT} ${LIVE_MOD_SYS}/0000-${DISTRO}_boot-${SL_VERSION}-${SL_ARCH}.sxz -noappend -comp ${SQ_COMP} ${SQ_COMP_PARAMS}
      fi

    fi

    # Squash the installed package series into a module:
    mksquashfs ${INSTDIR} ${LIVE_MOD_SYS}/${MNUM}-${DISTRO}_${SPS}-${SL_VERSION}-${SL_ARCH}.sxz -noappend -comp ${SQ_COMP} ${SQ_COMP_PARAMS}
    rm -rf ${INSTDIR}/*

    # End result: we have our .sxz file and the INSTDIR is empty again,
    # Next step is to loop-mount the squashfs file onto INSTDIR.

  elif [ "$SPS" = "a" -o "$SPS" = "${MINLIST}" ]; then

    # We need to do a bit more if we skipped creation of 'a' or 'min' module:
    # Extract the content of the /boot directory out of the boot module,
    # else we don't have a /boot ready when we create the ISO.
    # We can not just loop-mount it because we need to write into /boot later:
    rm -rf ${LIVE_BOOT}/boot
    unsquashfs -dest ${LIVE_BOOT}/boottemp ${LIVE_MOD_SYS}/0000-${DISTRO}_boot-${SL_VERSION}-${SL_ARCH}.sxz
    mv ${LIVE_BOOT}/boottemp/* ${LIVE_BOOT}/
    rmdir ${LIVE_BOOT}/boottemp

  fi

  # Add the package series tree to the readonly lowerdirs for the overlay:
  RODIRS="${INSTDIR}:${RODIRS}"

  # Mount the modules for use in the final assembly of the ISO:
  mount -t squashfs -o loop ${LIVE_MOD_SYS}/${MNUM}-${DISTRO}_${SPS}-${SL_VERSION}-${SL_ARCH}.sxz ${INSTDIR}

done
done

# ----------------------------------------------------------------------------
# Modules for all package series are created and loop-mounted.
# Next: system configuration.
# ----------------------------------------------------------------------------

# Configuration mudule will always be created from scratch:
INSTDIR=${LIVE_WORK}/zzzconf_$$
mkdir -p ${INSTDIR}

# -------------------------------------------------------------------------- #
echo "-- Configuring the base system."
# -------------------------------------------------------------------------- #

umount ${LIVE_ROOTDIR} 2>${DBGOUT} || true
mount -t overlay -o lowerdir=${RODIRS},upperdir=${INSTDIR},workdir=${LIVE_OVLDIR} overlay ${LIVE_ROOTDIR}

# Determine the kernel version in the Live OS:
#if [ -z "$KVER" ];then
if [ "$SL_ARCH" = "x86_64" -o "$SMP32" = "NO" ]; then
  KGEN=$(ls --indicator-style=none ${LIVE_ROOTDIR}/var/log/packages/kernel*modules* |grep -v smp |head -1 |rev | cut -d- -f3 |tr _ - |rev)
  KVER=$(ls --indicator-style=none ${LIVE_ROOTDIR}/lib/modules/ |grep -v smp |head -1)
else
  KGEN=$(ls --indicator-style=none ${LIVE_ROOTDIR}/var/log/packages/kernel*modules* |grep smp |head -1 |rev | cut -d- -f3 |tr _ - |rev)
  KVER=$(ls --indicator-style=none ${LIVE_ROOTDIR}/lib/modules/ |grep smp |head -1)
fi
#fi

# Configure hostname and network:
echo "${LIVE_HOSTNAME}" > ${LIVE_ROOTDIR}/etc/HOSTNAME
if [ -f ${LIVE_ROOTDIR}/etc/NetworkManager/NetworkManager.conf ]; then
  sed -i -e "s/^hostname=.*/hostname=${LIVE_HOSTNAME}/" \
    ${LIVE_ROOTDIR}/etc/NetworkManager/NetworkManager.conf
fi
sed -e "s/^\(127.0.0.1\t*\)darkstar.*/\1${LIVE_HOSTNAME} ${LIVE_HOSTNAME}/" \
  -i ${LIVE_ROOTDIR}/etc/hosts

# Make sure we can access DNS straight away:
cat <<EOT >> ${LIVE_ROOTDIR}/etc/resolv.conf
nameserver 1.1.1.1
nameserver 8.8.8.8

EOT

# Configure default locale (script-default is 'en_US.utf8). Note that there
# is 'UTF-8' versus 'utf8' and while the former has a preference, there is
# no functional difference between the two when using Linux glibc.
# This setting can be overridden on boot:
if grep -q "^ *export LANG=" ${LIVE_ROOTDIR}/etc/profile.d/lang.sh ; then
  sed -e "s/^ *export LANG=.*/export LANG=${DEF_LOCALE}/" -i ${LIVE_ROOTDIR}/etc/profile.d/lang.sh
else
  echo "export LANG=${DEF_LOCALE}" >> ${LIVE_ROOTDIR}/etc/profile.d/lang.sh
fi
# Does not hurt to also add systemd compatible configuration:
echo "LANG=${DEF_LOCALE}" > ${LIVE_ROOTDIR}/etc/locale.conf
echo "KEYMAP=${DEF_KBD}" > ${LIVE_ROOTDIR}/etc/vconsole.conf

# Set timezone to UTC, mimicking the 'timeconfig' script in Slackware:
cp -a ${LIVE_ROOTDIR}/usr/share/zoneinfo/UTC ${LIVE_ROOTDIR}/etc/localtime
# Could be absent so 'rm -f' to avoid script aborts:
rm -f ${LIVE_ROOTDIR}/etc/localtime-copied-from
ln -s /usr/share/zoneinfo/UTC ${LIVE_ROOTDIR}/etc/localtime-copied-from

# Qt5 expects '/etc/localtime' to be a symlink, but in Slackware this is a
# real file.  This causes Qt5 timezone detection to fail so that "UTC"
# will be returned always.  However if a file '/etc/timezone' exists, Qt5
# will use that.  Until this is fixed (either in Slackware or in Qt5) we
# add the file and update the 'timeconfig' script accordingly:
echo "UTC" > ${LIVE_ROOTDIR}/etc/timezone
sed -i -n "p;s/^\( *\)rm -f localtime$/\1echo \$TZ > timezone/p" \
  ${LIVE_ROOTDIR}/usr/sbin/timeconfig

# Configure the hardware clock to be interpreted as UTC as well:
cat <<EOT > ${LIVE_ROOTDIR}/etc/hardwareclock 
# /etc/hardwareclock
#
# Tells how the hardware clock time is stored.
# You should run timeconfig to edit this file.

UTC
EOT

# Configure a nice default console font that can handle Unicode:
cat <<EOT >${LIVE_ROOTDIR}/etc/rc.d/rc.font
#!/bin/sh
#
# This selects your default screen font from among the ones in
# /usr/share/kbd/consolefonts.
#
#setfont -v

# Use Terminus font to work better with the Unicode-enabled console
# (configured in /etc/lilo.conf)
setfont -v Lat2-Terminus16.psfu.gz
EOT
chmod a+x ${LIVE_ROOTDIR}/etc/rc.d/rc.font

# Enable mouse support in runlevel 3:
cat <<"EOM" > ${LIVE_ROOTDIR}/etc/rc.d/rc.gpm
#!/bin/sh
# Start/stop/restart the GPM mouse server:
[ ! -x /usr/sbin/gpm ] && return
MTYPE="imps2"
if [ "$1" = "stop" ]; then
  echo "Stopping gpm..."
  /usr/sbin/gpm -k
elif [ "$1" = "restart" ]; then
  echo "Restarting gpm..."
  /usr/sbin/gpm -k
  sleep 1
  /usr/sbin/gpm -m /dev/mouse -t ${MTYPE}
else # assume $1 = start:
  echo "Starting gpm:  /usr/sbin/gpm -m /dev/mouse -t ${MTYPE}"
  /usr/sbin/gpm -m /dev/mouse -t ${MTYPE}
fi
EOM
chmod a+x ${LIVE_ROOTDIR}/etc/rc.d/rc.gpm

# Remove ssh server keys - new unique keys will be generated
# at first boot of the live system: 
rm -f ${LIVE_ROOTDIR}/etc/ssh/*key*

# Sanitize /etc/fstab :
cat <<EOT > ${LIVE_ROOTDIR}/etc/fstab
proc      /proc       proc        defaults   0   0
sysfs     /sys        sysfs       defaults   0   0
tmpfs     /tmp        tmpfs       defaults,nodev,nosuid,mode=1777  0   0
tmpfs     /var/tmp    tmpfs       defaults,nodev,nosuid,mode=1777  0   0
tmpfs     /dev/shm    tmpfs       defaults,nodev,nosuid,mode=1777  0   0
devpts    /dev/pts    devpts      gid=5,mode=620   0   0
none      /           tmpfs       defaults   1   1

EOT

# Prevent loop devices (sxz modules) from appearing in filemanagers:
mkdir -p ${LIVE_ROOTDIR}/etc/udev/rules.d
cat <<EOL > ${LIVE_ROOTDIR}/etc/udev/rules.d/11-local.rules
# Prevent loop devices (mounted sxz modules) from appearing in
# filemanager panels - http://www.seguridadwireless.net

# Hidden loops for udisks:
KERNEL=="loop*", ENV{UDISKS_PRESENTATION_HIDE}="1"

# Hidden loops for udisks2:
KERNEL=="loop*", ENV{UDISKS_IGNORE}="1"
EOL

# Set a root password.
echo "root:${ROOTPW}" | chroot ${LIVE_ROOTDIR} /usr/sbin/chpasswd

# Create a nonprivileged user account (called "live" by default):
chroot ${LIVE_ROOTDIR} /usr/sbin/useradd -c "${VERSION}" -g users -G wheel,audio,cdrom,floppy,plugdev,video,power,netdev,lp,scanner,kmem,dialout,games,disk,input -u 1000 -d /home/${LIVEUID} -m -s /bin/zsh ${LIVEUID}
echo "${LIVEUID}:${LIVEPW}" | chroot ${LIVE_ROOTDIR} /usr/sbin/chpasswd

# Configure suauth:
cat <<EOT >${LIVE_ROOTDIR}/etc/suauth
root:${LIVEUID}:OWNPASS
root:ALL EXCEPT GROUP wheel:DENY
EOT
chmod 600 ${LIVE_ROOTDIR}/etc/suauth

# Configure sudoers (but not modifying it):
chmod 640 ${LIVE_ROOTDIR}/etc/sudoers
#sed -i ${LIVE_ROOTDIR}/etc/sudoers -e 's/# *\(%wheel\sALL=(ALL)\sALL\)/\1/'
chmod 440 ${LIVE_ROOTDIR}/etc/sudoers{,.dist}
chown -R root:root ${LIVE_ROOTDIR}/etc/sudoers.d/

# Enable a Slackware mirror for slackpkg:
cat <<EOT >> ${LIVE_ROOTDIR}/etc/slackpkg/mirrors
#http://mirrors.slackware.com/slackware/slackware${DIRSUFFIX}-${SL_VERSION}/
http://ftp.osuosl.org/.2/slackware/slackware${DIRSUFFIX}-${SL_VERSION}/
EOT

## Blacklist the l10n packages;
cat << EOT >> ${LIVE_ROOTDIR}/etc/slackpkg/blacklist

# Blacklist the l10n packages;
calligra-l10n-
kde-l10n-

EOT

# If we added slackpkg+ for easier system management, let's configure it too.
# Update the cache for slackpkg:
#XXX
# echo "-- Creating slackpkg cache, takes a few seconds..."
# chroot "${LIVE_ROOTDIR}" /bin/bash <<EOSL 2>${DBGOUT}
# 
# if [ -f var/log/packages/slackpkg+-* ] ; then
#   cat <<EOPL > etc/slackpkg/slackpkgplus.conf
# SLACKPKGPLUS=on
# VERBOSE=1
# ALLOW32BIT=off
# USEBL=1
# WGETOPTS="--timeout=20 --tries=2"
# GREYLIST=on
# PKGS_PRIORITY=( restricted alienbob ktown mate )
# REPOPLUS=( slackpkgplus restricted alienbob ktown mate )
# MIRRORPLUS['slackpkgplus']=http://slakfinder.org/slackpkg+/
# MIRRORPLUS['restricted']=http://slackware.nl/people/alien/restricted_sbrepos/${SL_VERSION}/${SL_ARCH}/
# MIRRORPLUS['alienbob']=http://slackware.nl/people/alien/sbrepos/${SL_VERSION}/${SL_ARCH}/
# MIRRORPLUS['mate']=http://slackware.uk/msb/${SL_VERSION}/latest/${SL_ARCH}/ 
# #MIRRORPLUS['studioware']=http://slackware.uk/studioware/${SL_VERSION}/ 
# EOPL
#   # Use the appropriate ktown variant:
#   eval $( grep "^ *VARIANT=" ${LIVE_TOOLDIR}/pkglists/plasma5.conf)
#   if [ "$VARIANT" = "latest" ]; then
#     cat <<EOPL >> etc/slackpkg/slackpkgplus.conf
# #MIRRORPLUS['ktown']=http://slackware.nl/alien-kde/${SL_VERSION}/testing/${SL_ARCH}/
# MIRRORPLUS['ktown']=http://slackware.nl/alien-kde/${SL_VERSION}/latest/${SL_ARCH}/
# EOPL
#   else
#     cat <<EOPL >> etc/slackpkg/slackpkgplus.conf
# #MIRRORPLUS['ktown']=http://slackware.nl/alien-kde/${SL_VERSION}/latest/${SL_ARCH}/
# MIRRORPLUS['ktown']=http://slackware.nl/alien-kde/${SL_VERSION}/testing/${SL_ARCH}/
# EOPL
#   fi
# fi
# 
# # Slackpkg wants you to opt-in on slackware-current:
# if [ "${SL_VERSION}" = "current" ]; then
#   mkdir -p /var/lib/slackpkg
#   touch /var/lib/slackpkg/current
# fi
# 
# ARCH=${SL_ARCH} /usr/sbin/slackpkg -batch=on update gpg
# ARCH=${SL_ARCH} /usr/sbin/slackpkg -batch=on update
# # Let any lingering .new files replace their originals:
# yes o | ARCH=${SL_ARCH} /usr/sbin/slackpkg new-config
# 
# EOSL

if [ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.networkmanager ]; then
  # Enable NetworkManager if present:
  chmod a+x ${LIVE_ROOTDIR}/etc/rc.d/rc.networkmanager
  # And disable Slackware's own way of configuring eth0:
  cat <<EOT > ${LIVE_ROOTDIR}/etc/rc.d/rc.inet1.conf
IFNAME[0]="eth0"
IPADDR[0]=""
NETMASK[0]=""
USE_DHCP[0]=""
DHCP_HOSTNAME[0]=""

GATEWAY=""
DEBUG_ETH_UP="no"
EOT

  # Ensure that NetworkManager uses its internal DHCP client - seems to give
  # better compliancy:
  sed -e "s/^dhcp=dhcpcd/#&/" -e "s/^#\(dhcp=internal\)/\1/" \
      -i ${LIVE_ROOTDIR}/etc/NetworkManager/NetworkManager.conf

else
  # Use Slackware's own network configurion routing for eth0 in the base image:
  cat <<EOT > ${LIVE_ROOTDIR}/etc/rc.d/rc.inet1.conf
IFNAME[0]="eth0"
IPADDR[0]=""
NETMASK[0]=""
USE_DHCP[0]="yes"
DHCP_HOSTNAME[0]="${LIVE_HOSTNAME}"

GATEWAY=""
DEBUG_ETH_UP="no"
EOT
fi

# Add our scripts to the Live OS:
mkdir -p  ${LIVE_ROOTDIR}/usr/local/sbin
install -m0755 ${LIVE_TOOLDIR}/makemod ${LIVE_TOOLDIR}/iso2usb.sh ${LIVE_TOOLDIR}/upslak.sh ${LIVE_ROOTDIR}/usr/local/sbin/

# Add PXE Server infrastructure:
mkdir -p ${LIVE_ROOTDIR}/var/lib/tftpboot/pxelinux.cfg
cp -ia /usr/share/syslinux/pxelinux.0 ${LIVE_ROOTDIR}/var/lib/tftpboot/
ln -s /mnt/livemedia/boot/generic ${LIVE_ROOTDIR}/var/lib/tftpboot/
ln -s /mnt/livemedia/boot/initrd.img ${LIVE_ROOTDIR}/var/lib/tftpboot/
cat ${LIVE_TOOLDIR}/pxeserver.tpl | sed \
  -e "s/@DIRSUFFIX@/$DIRSUFFIX/g" \
  -e "s/@DISTRO@/$DISTRO/g" \
  -e "s/@CDISTRO@/${DISTRO^}/g" \
  -e "s/@UDISTRO@/${DISTRO^^}/g" \
  -e "s/@KVER@/$KVER/g" \
  -e "s/@LIVEDE@/$LIVEDE/g" \
  -e "s/@LIVEMAIN@/$LIVEMAIN/g" \
  -e "s/@MARKER@/$MARKER/g" \
  -e "s/@SL_VERSION@/$SL_VERSION/g" \
  -e "s/@VERSION@/$VERSION/g" \
  > ${LIVE_ROOTDIR}/usr/local/sbin/pxeserver
chmod 755 ${LIVE_ROOTDIR}/usr/local/sbin/pxeserver

# Only when we find a huge kernel, we will add a harddisk installer
# to the ISO.  The huge kernel does not require an initrd and installation
# to the hard drive will not be complicated.  add the installer anyway.
# if ls ${LIVE_ROOTDIR}/boot/vmlinuz-huge-* 1>/dev/null 2>/dev/null; then
 if [ -f ${DEF_SL_PKGROOT}/../isolinux/initrd.img ]; then
  # Extract the 'setup' files we need from the Slackware installer
  # and move them to a single directory in the ISO:
  mkdir -p  ${LIVE_ROOTDIR}/usr/share/${LIVEMAIN}
  cd  ${LIVE_ROOTDIR}/usr/share/${LIVEMAIN}
    uncompressfs ${DEF_SL_PKGROOT}/../isolinux/initrd.img | cpio -i -d -H newc --no-absolute-filenames usr/lib/setup/* sbin/probe sbin/fixdate
    mv -i usr/lib/setup/* sbin/probe sbin/fixdate .
    rm -r usr sbin
    rm -f setup
  cd - 1>/dev/null
  # Fix some occurrences of '/mnt' that should not be used in the Live ISO
  # (this was applied in Slackware > 14.2 but does not harm to do this anyway):
  sed -i ${LIVE_ROOTDIR}/usr/share/${LIVEMAIN}/* \
    -e 's,T_PX=/mnt,T_PX="`cat $TMP/SeTT_PX`",g' \
    -e 's, /mnt, ${T_PX},g' \
    -e 's,=/mnt$,=${T_PX},g' \
    -e 's,=/mnt/,=${T_PX}/,g'
  # If T_PX is used in a script, it should be defined first:
  for FILE in ${LIVE_ROOTDIR}/usr/share/${LIVEMAIN}/* ; do
    if grep -q T_PX $FILE ; then
      if ! grep -q "^T_PX=" $FILE ; then
        if ! grep -q "^TMP=" $FILE ; then
          sed -e '/#!/a T_PX="`cat $TMP/SeTT_PX`"' -i $FILE
          sed -e '/#!/a TMP=/var/log/setup/tmp' -i $FILE
        else
          sed -e '/^TMP=/a T_PX="`cat $TMP/SeTT_PX`"' -i $FILE
        fi
      fi
    fi
  done
  if [ -f ${LIVE_ROOTDIR}/sbin/liloconfig ]; then
    if [ -f ${LIVE_TOOLDIR}/patches/liloconfig_${SL_VERSION}.patch ]; then
      LILOPATCH=liloconfig_${SL_VERSION}.patch
    elif [ -f ${LIVE_TOOLDIR}/patches/liloconfig.patch ]; then
      LILOPATCH=liloconfig.patch
    else
      LILOPATCH=""
    fi
    if [ -n "${LILOPATCH}" ]; then
      patch ${LIVE_ROOTDIR}/sbin/liloconfig ${LIVE_TOOLDIR}/patches/${LILOPATCH}
    fi
  fi
  if [ -f ${LIVE_ROOTDIR}/usr/sbin/eliloconfig ]; then
    if [ -f ${LIVE_TOOLDIR}/patches/eliloconfig_${SL_VERSION}.patch ]; then
      ELILOPATCH=eliloconfig_${SL_VERSION}.patch
    elif  [ -f ${LIVE_TOOLDIR}/patches/eliloconfig.patch ]; then
      ELILOPATCH=eliloconfig.patch
    else
      ELILOPATCH=""
    fi
    if [ -n "${ELILOPATCH}" ]; then
      patch ${LIVE_ROOTDIR}/usr/sbin/eliloconfig ${LIVE_TOOLDIR}/patches/${ELILOPATCH}
    fi
  fi
  # Fix some occurrences of '/usr/lib/setup/' that are covered by $PATH:
  sed -i -e 's,/usr/lib/setup/,,g' -e 's,:/usr/lib/setup,:/usr/share/${LIVEMAIN},g' ${LIVE_ROOTDIR}/usr/share/${LIVEMAIN}/*
  # Add the Slackware Live HD installer:
  mkdir -p ${LIVE_ROOTDIR}/usr/local/sbin
  cat ${LIVE_TOOLDIR}/setup2hd.tpl | sed \
    -e "s/@DIRSUFFIX@/$DIRSUFFIX/g" \
    -e "s/@DISTRO@/$DISTRO/g" \
    -e "s/@CDISTRO@/${DISTRO^}/g" \
    -e "s/@UDISTRO@/${DISTRO^^}/g" \
    -e "s/@KVER@/$KVER/g" \
    -e "s/@LIVEDE@/$LIVEDE/g" \
    -e "s/@LIVEMAIN@/$LIVEMAIN/g" \
    -e "s/@MARKER@/$MARKER/g" \
    -e "s/@SL_VERSION@/$SL_VERSION/g" \
    -e "s/@VERSION@/$VERSION/g" \
    > ${LIVE_ROOTDIR}/usr/local/sbin/setup2hd
  chmod 755 ${LIVE_ROOTDIR}/usr/local/sbin/setup2hd
  # Slackware Live HD post-install customization hook:
  if [ -f ${LIVE_TOOLDIR}/setup2hd.local ]; then
    # The '.local' suffix means: install it as a sample file only:
    HOOK_SRC="${LIVE_TOOLDIR}/setup2hd.local"
    HOOK_DST="${LIVE_ROOTDIR}/usr/share/${LIVEMAIN}/setup2hd.$DISTRO.sample"
  elif [ -f ${LIVE_TOOLDIR}/setup2hd.$DISTRO ]; then
    # Install the hook; the file will be sourced by "setup2hd".
    HOOK_SRC="${LIVE_TOOLDIR}/setup2hd.$DISTRO"
    HOOK_DST="${LIVE_ROOTDIR}/usr/share/${LIVEMAIN}/setup2hd.$DISTRO"
  fi
  cat ${HOOK_SRC} | sed \
    -e "s/@DIRSUFFIX@/$DIRSUFFIX/g" \
    -e "s/@DISTRO@/$DISTRO/g" \
    -e "s/@CDISTRO@/${DISTRO^}/g" \
    -e "s/@UDISTRO@/${DISTRO^^}/g" \
    -e "s/@KVER@/$KVER/g" \
    -e "s/@LIVEDE@/$LIVEDE/g" \
    -e "s/@LIVEMAIN@/$LIVEMAIN/g" \
    -e "s/@MARKER@/$MARKER/g" \
    -e "s/@SL_VERSION@/$SL_VERSION/g" \
    -e "s/@VERSION@/$VERSION/g" \
    > ${HOOK_DST}
  chmod 644 ${HOOK_DST}
 else
  echo "-- Could not find ${DEF_SL_PKGROOT}/../isolinux/initrd.img - not adding 'setup2hd'!"
 fi
# fi

# Add the documentation:
#mkdir -p  ${LIVE_ROOTDIR}/usr/doc/liveslak-${VERSION}
#install -m0644 ${LIVE_TOOLDIR}/README* ${LIVE_ROOTDIR}/usr/doc/liveslak-${VERSION}/
#mkdir -p  ${LIVE_ROOTDIR}/usr/doc/${DISTRO}${DIRSUFFIX}-${SL_VERSION}
#install -m0644 \
#  ${DEF_SL_PKGROOT}/../{CHANGES_AND_HINTS,COPY,README,RELEASE_NOTES,*HOWTO}* \
#  ${DEF_SL_PKGROOT}/../usb-and-pxe-installers/README* \
#  ${LIVE_ROOTDIR}/usr/doc/${DISTRO}${DIRSUFFIX}-${SL_VERSION}/

# -------------------------------------------------------------------------- #
echo "-- Configuring the X base system."
# -------------------------------------------------------------------------- #

# Reduce the number of local consoles, two should be enough:
sed -i -e '/^c3\|^c4\|^c5\|^c6/s/^/# /' ${LIVE_ROOTDIR}/etc/inittab

# Give the 'live' user a face:
cp ${LIVE_TOOLDIR}/blueSW-64px.png ${LIVE_ROOTDIR}/home/${LIVEUID}/.face.icon
chown --reference=${LIVE_ROOTDIR}/home/${LIVEUID} ${LIVE_ROOTDIR}/home/${LIVEUID}/.face.icon
( cd ${LIVE_ROOTDIR}/home/${LIVEUID}/ ; ln .face.icon .face )
mkdir -p ${LIVE_ROOTDIR}/usr/share/apps/kdm/pics/users
cp ${LIVE_TOOLDIR}/blueSW-64px.png ${LIVE_ROOTDIR}/usr/share/apps/kdm/pics/users/blues.icon

# Add some convenience to the bash shell:
mkdir -p  ${LIVE_ROOTDIR}/etc/skel/
cat << "EOT" > ${LIVE_ROOTDIR}/etc/skel/.profile
# Source a .bashrc if it exists:
[[ -r ~/.bashrc ]] && . ~/.bashrc

# Define some useful aliases:
alias ll="ls -la $LS_OPTIONS"
lsp() { basename $(ls -1 "/var/log/packages/$@"*) ; }
alias md="mkdir"
alias tarview="tar -tvf"
# GREP_OPTIONS="--color=auto" is deprecated, use alias to enable colored output:
alias grep="grep --color=auto"
alias fgrep="fgrep --color=auto"
alias egrep="egrep --color=auto"

#umask 027

# Ctrl-D should not log us off immediately; now it needs 10 times:
set -o ignoreeof
EOT

# Do the root account the same favor:
cat ${LIVE_ROOTDIR}/etc/skel/.profile > ${LIVE_ROOTDIR}/root/.profile
chown root:root ${LIVE_ROOTDIR}/root/.profile

# Give XDM a nicer look:
mkdir -p ${LIVE_ROOTDIR}/etc/X11/xdm/liveslak-xdm
cp -a ${LIVE_TOOLDIR}/xdm/* ${LIVE_ROOTDIR}/etc/X11/xdm/liveslak-xdm/
# Point xdm to the custom /etc/X11/xdm/liveslak-xdm/xdm-config:
sed -i ${LIVE_ROOTDIR}/etc/rc.d/rc.4 -e 's,bin/xdm -nodaemon,& -config /etc/X11/xdm/liveslak-xdm/xdm-config,'
# Adapt xdm configuration to target architecture:
sed -i "s/@LIBDIR@/lib${DIRSUFFIX}/g" ${LIVE_ROOTDIR}/etc/X11/xdm/liveslak-xdm/xdm-config

# The Xscreensaver should show a blank screen only, to prevent errors about
# missing modules:
echo "mode:           blank" > ${LIVE_ROOTDIR}/home/${LIVEUID}/.xscreensaver

# -------------------------------------------------------------------------- #
echo "-- Configuring XFCE."
# -------------------------------------------------------------------------- #

# Prepare some XFCE defaults for the 'live' user and any new users.
# (don't show icons on the desktop for irrelevant stuff).
# Also, allow other people to add their own custom skel*.txz archives:
mkdir -p ${LIVE_ROOTDIR}/etc/skel/
for SKEL in ${LIVE_TOOLDIR}/skel/skel*.txz ; do
  tar -xf ${SKEL} -C ${LIVE_ROOTDIR}/etc/skel/
done

# Remove those LIVEDE I dont use.

# You can define the function 'custom_config()' by uncommenting it in
# the configuration file 'make_slackware_live.conf'.
if type custom_config 1>/dev/null 2>/dev/null ; then

  # -------------------------------------------------------------------------- #
  echo "-- Configuring ${LIVEDE} by calling 'custom_config()'."
  # -------------------------------------------------------------------------- #

  # This is particularly useful if you defined a non-standard "LIVEDE"
  # in 'make_slackware_live.conf', in which case you must specify your custom
  # package sequence in the variable "SEQ_CUSTOM" in that same .conf file.
  custom_config

fi

# Workaround a bug where our Xkbconfig is not loaded sometimes:
echo "setxkbmap" > ${LIVE_ROOTDIR}/home/${LIVEUID}/.xprofile

# Give the live user a copy of our XFCE (and more) skeleton configuration:
cd ${LIVE_ROOTDIR}/etc/skel/
  find . -exec cp -a --parents "{}" ${LIVE_ROOTDIR}/home/${LIVEUID}/ \;
  find ${LIVE_ROOTDIR}/home/${LIVEUID}/ -type f -exec sed -i -e "s,/home/live,/home/${LIVEUID}," "{}" \;
cd - 1>/dev/null

# "-- Importing CACert root certificates into OS and browsers."
if [ "${ADD_CACERT}" = "YES" -o "${ADD_CACERT}" = "yes" ]; then
  echo "-- Importing CACert root certificates into OS and browsers."
  # Import CACert root certificates into the OS:
  ( mkdir -p ${LIVE_ROOTDIR}/etc/ssl/certs
    cd ${LIVE_ROOTDIR}/etc/ssl/certs
    wget -q -O cacert-root.crt http://www.cacert.org/certs/root.crt
    wget -q -O cacert-class3.crt http://www.cacert.org/certs/class3.crt
    ln -s cacert-root.crt \
      $(openssl x509 -noout -hash -in cacert-root.crt).0
    ln -s cacert-class3.crt \
      $(openssl x509 -noout -hash -in cacert-class3.crt).0
  )
fi # End ADD_CACERT

  # Create Mozilla Firefox profile:
  mkdir -p ${LIVE_ROOTDIR}/home/${LIVEUID}/.mozilla/firefox/${LIVEUID}_profile.default
  cat << EOT > ${LIVE_ROOTDIR}/home/${LIVEUID}/.mozilla/firefox/profiles.ini
[General]
StartWithLastProfile=1

[Profile0]
Name=default
IsRelative=1
Path=${LIVEUID}_profile.default
Default=1
EOT

  # Create hardened user.js for Firefox:
  cat /home/user/repo/LiveSlak/skel/user.js > ${LIVE_ROOTDIR}/home/${LIVEUID}/.mozilla/firefox/${LIVEUID}_profile.default/user.js

  # Create Mozilla Seamonkey profile: 

  # Import CACert root certificates into the browsers:
#  (
#    # Mozilla Firefox:
#    certutil -N --empty-password -d ${LIVE_ROOTDIR}/home/${LIVEUID}/.mozilla/firefox/${LIVEUID}_profile.default
#    certutil -d ${LIVE_ROOTDIR}/home/${LIVEUID}/.mozilla/firefox/${LIVEUID}_profile.default \
#      -A -t TC -n "CAcert.org" -i ${LIVE_ROOTDIR}/etc/ssl/certs/cacert-root.crt
#    certutil -d ${LIVE_ROOTDIR}/home/${LIVEUID}/.mozilla/firefox/${LIVEUID}_profile.default \
#      -A -t TC -n "CAcert.org Class 3" -i ${LIVE_ROOTDIR}/etc/ssl/certs/cacert-class3.crt

#    # Seamonkey and Pale Moon (can just be a copy of the Firefox files):
#    cp -a \
#      ${LIVE_ROOTDIR}/home/${LIVEUID}/.mozilla/firefox/${LIVEUID}_profile.default/* \
#      ${LIVE_ROOTDIR}/home/${LIVEUID}/.mozilla/seamonkey/${LIVEUID}_profile.default/
#    cp -a \
#      ${LIVE_ROOTDIR}/home/${LIVEUID}/.mozilla/firefox/${LIVEUID}_profile.default/* \
#      ${LIVE_ROOTDIR}/home/${LIVEUID}/.moonchild\ productions/pale\ moon/${LIVEUID}_profile.default/
#    # NSS databases for Chrome based browsers have a different format (sql)
#    # than Mozilla based browsers:
#    mkdir -p ${LIVE_ROOTDIR}/home/${LIVEUID}/.pki/nssdb
#    certutil -N --empty-password -d ${LIVE_ROOTDIR}/home/${LIVEUID}/.pki/nssdb
#    certutil -d sql:${LIVE_ROOTDIR}/home/${LIVEUID}/.pki/nssdb \
#      -A -t TC -n "CAcert.org" -i ${LIVE_ROOTDIR}/etc/ssl/certs/cacert-root.crt
#    certutil -d sql:${LIVE_ROOTDIR}/home/${LIVEUID}/.pki/nssdb \
#      -A -t TC -n "CAcert.org Class 3" -i ${LIVE_ROOTDIR}/etc/ssl/certs/cacert-class3.crt
#  )
  #  find out how to configure KDE with additional Root CA's.
#fi # End ADD_CACERT

# Make sure that user 'live' owns her own files:
chroot ${LIVE_ROOTDIR} chown -R ${LIVEUID}:users home/${LIVEUID}
chroot ${LIVE_ROOTDIR} chmod 700  home/${LIVEUID}

# -------------------------------------------------------------------------- #
echo "-- Tweaking system startup."
# -------------------------------------------------------------------------- #

# Configure the default DE when running startx:
if [ "$LIVEDE" = "SLACKWARE" ]; then
  ln -sf xinitrc.kde ${LIVE_ROOTDIR}/etc/X11/xinit/xinitrc
elif [ "$LIVEDE" = "KDE4" ]; then
  ln -sf xinitrc.kde ${LIVE_ROOTDIR}/etc/X11/xinit/xinitrc
elif [ "$LIVEDE" = "PLASMA5" ]; then
  ln -sf xinitrc.plasma ${LIVE_ROOTDIR}/etc/X11/xinit/xinitrc
elif [ "$LIVEDE" = "MATE" ]; then
  ln -sf xinitrc.mate-session ${LIVE_ROOTDIR}/etc/X11/xinit/xinitrc
elif [ "$LIVEDE" = "CINNAMON" ]; then
  ln -sf xinitrc.cinnamon-session ${LIVE_ROOTDIR}/etc/X11/xinit/xinitrc
elif [ "$LIVEDE" = "DLACK" ]; then
  ln -sf xinitrc.gnome ${LIVE_ROOTDIR}/etc/X11/xinit/xinitrc
elif [ -f ${LIVE_ROOTDIR}/etc/X11/xinit/xinitrc.xfce ]; then
  ln -sf xinitrc.xfce ${LIVE_ROOTDIR}/etc/X11/xinit/xinitrc
fi

# Configure the default runlevel:
sed -i ${LIVE_ROOTDIR}/etc/inittab -e "s/\(id:\).\(:initdefault:\)/\1${RUNLEVEL}\2/"

# Disable unneeded/unwanted services:
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.acpid ] && chmod a-x ${LIVE_ROOTDIR}/etc/rc.d/rc.acpid
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.pcmcia ] && chmod a-x ${LIVE_ROOTDIR}/etc/rc.d/rc.pcmcia
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.pulseaudio ] && chmod a-x ${LIVE_ROOTDIR}/etc/rc.d/rc.pulseaudio
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.yp ] && chmod a-x ${LIVE_ROOTDIR}/etc/rc.d/rc.yp
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.sshd ] && chmod a-x ${LIVE_ROOTDIR}/etc/rc.d/rc.sshd
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.rpc ] && chmod a-x ${LIVE_ROOTDIR}/etc/rc.d/rc.rpc
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.cups ] && chmod a-x ${LIVE_ROOTDIR}/etc/rc.d/rc.cups
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.cups-browsed ] && chmod a-x ${LIVE_ROOTDIR}/etc/rc.d/rc.cups-browsed
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.bluetooth ] && chmod a-x ${LIVE_ROOTDIR}/etc/rc.d/rc.bluetooth

# Enable my stuff (but not autostarted):
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.firewall ] && chmod a+x ${LIVE_ROOTDIR}/etc/rc.d/rc.firewall
[ -f ${LIVE_ROOTDIR}/etc/rc.d/rc.docker ] && chmod a+x ${LIVE_ROOTDIR}/etc/rc.d/rc.docker

# Add a softvol pre-amp to ALSA - some computers have too low volumes.
# If etc/asound.conf exists it's configuring ALSA to use Pulse,
# so in that case the pre-amp is not needed:
if [ ! -f ${LIVE_ROOTDIR}/etc/asound.conf ]; then
  cat <<EOAL > ${LIVE_ROOTDIR}/etc/asound.conf
pcm.!default {
  type asym
  playback.pcm "plug:softvol"
  capture.pcm "plug:dsnoop"
}

pcm.softvol {
  type softvol
  slave.pcm "dmix"
  control { name "PCM"; card 0; }
  max_dB 32.0
}
EOAL
else
  if ! grep -q sysdefault ${LIVE_ROOTDIR}/etc/asound.conf ; then
    # If pulse is used, configure a fallback to use the system default
    # or else there will not be sound on first boot:
    sed -i ${LIVE_ROOTDIR}/etc/asound.conf \
        -e '/type pulse/ a \ \ fallback "sysdefault"'
  fi
fi

# Skip all filesystem checks at boot:
touch ${LIVE_ROOTDIR}/etc/fastboot

# Disable the root filesystem check altogether:
sed -i -e '/^if \[ ! \$READWRITE = yes/,/^fi # Done checking root filesystem/s/^/#/' ${LIVE_ROOTDIR}/etc/rc.d/rc.S

# We will not write to the hardware clock:
sed -i -e '/systohc/s/^/# /' ${LIVE_ROOTDIR}/etc/rc.d/rc.6

# Run some package setup scripts (usually run by the slackware installer),
# as well as some of the delaying commands in rc.M and rc.modules:
chroot ${LIVE_ROOTDIR} /bin/bash <<EOCR
# Rebuild SSL certificate database:
/usr/sbin/update-ca-certificates --fresh 1>/dev/null 2>${DBGOUT}

# Run bits from rc.M so we won't need to run them again in the live system:
/sbin/depmod $KVER
/sbin/ldconfig
EOCR

chroot ${LIVE_ROOTDIR} /bin/bash <<EOCR
# Update the desktop database:
if [ -x /usr/bin/update-desktop-database ]; then
  /usr/bin/update-desktop-database /usr/share/applications > /dev/null 2>${DBGOUT}
fi

# Update hicolor theme cache:
if [ -d /usr/share/icons/hicolor ]; then
  if [ -x /usr/bin/gtk-update-icon-cache ]; then
    /usr/bin/gtk-update-icon-cache -f -t /usr/share/icons/hicolor 1>/dev/null 2>${DBGOUT}
  fi
fi

# Update the mime database:
if [ -x /usr/bin/update-mime-database ]; then
  /usr/bin/update-mime-database /usr/share/mime >/dev/null 2>${DBGOUT}
fi

# Font configuration:
if [ -x /usr/bin/fc-cache ]; then
  for fontdir in 100dpi 75dpi OTF Speedo TTF Type1 cyrillic ; do
    if [ -d /usr/share/fonts/\$fontdir ]; then
      mkfontscale /usr/share/fonts/\$fontdir 1>/dev/null 2>${DBGOUT}
      mkfontdir /usr/share/fonts/\$fontdir 1>/dev/null 2>${DBGOUT}
    fi
  done
  if [ -d /usr/share/fonts/misc ]; then
    mkfontscale /usr/share/fonts/misc  1>/dev/null 2>${DBGOUT}
    mkfontdir -e /usr/share/fonts/encodings -e /usr/share/fonts/encodings/large /usr/share/fonts/misc 1>/dev/null 2>${DBGOUT}
  fi
  /usr/bin/fc-cache -f 1>/dev/null 2>${DBGOUT}
fi

if [ -x /usr/bin/update-gtk-immodules ]; then
  /usr/bin/update-gtk-immodules
fi
if [ -x /usr/bin/update-gdk-pixbuf-loaders ]; then
  /usr/bin/update-gdk-pixbuf-loaders
fi
if [ -x /usr/bin/update-pango-querymodules ]; then
  /usr/bin/update-pango-querymodules
fi

if [ -x /usr/bin/glib-compile-schemas ]; then
  /usr/bin/glib-compile-schemas /usr/share/glib-2.0/schemas >/dev/null 2>${DBGOUT}
fi

# Delete unwanted cache files:
if [ -d usr/share/icons ]; then
  find usr/share/icons -name icon-theme.cache -exec rm "{}" \;
fi
EOCR

# Disable above commands in rc.M and rc.modules:  #XXX
#sed -e "s% /usr/bin/update.*verbose%#&%" -i ${LIVE_ROOTDIR}/etc/rc.d/rc.M 
sed -e '/^ *\/usr\/bin\/glib-c/ s, /usr/bin/glib-c,#&,' -i ${LIVE_ROOTDIR}/etc/rc.d/rc.M
sed -e "s% /sbin/depmod -%#&%" -i ${LIVE_ROOTDIR}/etc/rc.d/rc.modules 

# If we detect a NVIDIA driver, then run the nvidia install routine:
#cat <<EOT >> ${LIVE_ROOTDIR}/etc/rc.d/rc.local
#
## Deal with the presence of NVIDIA drivers:
#if [ -x /usr/sbin/nvidia-switch ]; then
#  if [ -f /usr/lib${DIRSUFFIX}/xorg/modules/extensions/libglx.so.*-nvidia -a -f /usr/lib${DIRSUFFIX}/xorg/modules/drivers/nvidia_drv.so ]; then
#    echo "-- Installing binary Nvidia drivers:  /usr/sbin/nvidia-switch --install"
#    /usr/sbin/nvidia-switch --install
#  fi
#  # For CUDA/OpenCL to work after reboot, create missing nvidia device nodes:
#  /usr/bin/nvidia-modprobe -c 0 -u
#else
#  # Take care of a reboot where nvidia drivers disappeared
#  # afer being used earlier, by restoring the original libraries:
#  if ls /usr/lib${DIRSUFFIX}/xorg/modules/extensions/libglx.so-xorg 1>/dev/null 2>/dev/null ; then
#    mv /usr/lib${DIRSUFFIX}/xorg/modules/extensions/libglx.so{-xorg,} 2>/dev/null
#    mv /usr/lib${DIRSUFFIX}/xorg/modules/extensions/libglx.la{-xorg,} 2>/dev/null
#  fi
#  if ls /usr/lib${DIRSUFFIX}/libGL.so.*-xorg 1>/dev/null 2>/dev/null ; then
#    LIBGL=\$(ls -1 /usr/lib${DIRSUFFIX}/libGL.so.*-xorg |rev |cut -d/ -f1 |cut -d- -f2- |rev)
#    mv /usr/lib${DIRSUFFIX}/\${LIBGL}-xorg /usr/lib${DIRSUFFIX}/\${LIBGL} 2>/dev/null
#    ln -sf \${LIBGL} /usr/lib${DIRSUFFIX}/libGL.so.1 2>/dev/null
#    ln -sf \${LIBGL} /usr/lib${DIRSUFFIX}/libGL.so 2>/dev/null
#    mv /usr/lib${DIRSUFFIX}/libGL.la-xorg /usr/lib${DIRSUFFIX}/libGL.la 2>/dev/null
#  fi
#  if ls /usr/lib${DIRSUFFIX}/libEGL.so.*-xorg 1>/dev/null 2>/dev/null   ; then
#    LIBEGL=\$(ls -1 /usr/lib${DIRSUFFIX}/libEGL.so.*-xorg |rev |cut -d/ -f1 |cut -d- -f2- |rev)
#    mv /usr/lib${DIRSUFFIX}/\${LIBEGL}-xorg /usr/lib${DIRSUFFIX}/\${LIBEGL} 2>/dev/null
#    ln -sf \${LIBEGL} /usr/lib${DIRSUFFIX}/libEGL.so.1 2>/dev/null
#    ln -sf \${LIBEGL} /usr/lib${DIRSUFFIX}/libEGL.so 2>/dev/null
#  fi
#fi
#EOT

# Clean out the unneeded stuff:
# Note: this will fail when a directory is encountered. This failure points
# to a packaging issue; find and fix the responsible package.
rm -f ${LIVE_ROOTDIR}/tmp/[A-Za-z]*
rm -f ${LIVE_ROOTDIR}/var/mail/*
rm -f ${LIVE_ROOTDIR}/root/.bash*

# Create a locate cache:
echo "-- Creating locate cache, takes a few seconds..."
if [ -x ${LIVE_ROOTDIR}/etc/cron.daily/mlocate ]; then
  LOCATE_BIN=mlocate
else
  LOCATE_BIN=slocate
fi
chroot ${LIVE_ROOTDIR} /etc/cron.daily/${LOCATE_BIN} 2>${DBGOUT}

# -----------------------------------------------------------------------------
# Done with configuring the live system!
# -----------------------------------------------------------------------------

# Squash the configuration into its own module:
umount ${LIVE_ROOTDIR} 2>${DBGOUT} || true
mksquashfs ${INSTDIR} ${LIVE_MOD_SYS}/0099-${DISTRO}_zzzconf-${SL_VERSION}-${SL_ARCH}.sxz -noappend -comp ${SQ_COMP} ${SQ_COMP_PARAMS}
rm -rf ${INSTDIR}/*

# End result: we have our .sxz file and the INSTDIR is empty again,
# Next step is to loop-mount the squashfs file onto INSTDIR.

# Add the system configuration tree to the readonly lowerdirs for the overlay:
RODIRS="${INSTDIR}:${RODIRS}"

# Mount the module for use in the final assembly of the ISO:
mount -t squashfs -o loop ${LIVE_MOD_SYS}/0099-${DISTRO}_zzzconf-${SL_VERSION}-${SL_ARCH}.sxz ${INSTDIR}

unset INSTDIR

# -----------------------------------------------------------------------------
# Prepare the system for live booting.
# -----------------------------------------------------------------------------

echo "-- Preparing the system for live booting."
umount ${LIVE_ROOTDIR} 2>${DBGOUT} || true
mount -t overlay -o lowerdir=${RODIRS%:*},upperdir=${LIVE_BOOT},workdir=${LIVE_OVLDIR} overlay ${LIVE_ROOTDIR}

mount --bind /proc ${LIVE_ROOTDIR}/proc
mount --bind /sys ${LIVE_ROOTDIR}/sys
mount --bind /dev ${LIVE_ROOTDIR}/dev

# Determine the installed kernel version:
#if [ -z "$KVER" ]; then
if [ "$SL_ARCH" = "x86_64" -o "$SMP32" = "NO" ]; then
  KGEN=$(ls --indicator-style=none ${LIVE_ROOTDIR}/var/log/packages/kernel*modules* |grep -v smp |head -1 |rev | cut -d- -f3 |tr _ - |rev)
  KVER=$(ls --indicator-style=none ${LIVE_ROOTDIR}/lib/modules/ |grep -v smp |head -1)
else
  KGEN=$(ls --indicator-style=none ${LIVE_ROOTDIR}/var/log/packages/kernel*modules* |grep smp |head -1 |rev | cut -d- -f3 |tr _ - |rev)
  KVER=$(ls --indicator-style=none ${LIVE_ROOTDIR}/lib/modules/ |grep smp |head -1)
fi
#fi

# Create an initrd for the generic kernel, using a modified init script:
echo "-- Creating initrd for kernel-generic $KVER ..."
chroot ${LIVE_ROOTDIR} /sbin/mkinitrd -c -w ${WAIT} -l us -o /boot/initrd_${KVER}.img -k ${KVER} -m ${KMODS} -L -C dummy 1>${DBGOUT} 2>${DBGOUT}
# Modify the initrd content for the Live OS:
cat $LIVE_TOOLDIR/liveinit.tpl | sed \
  -e "s/@LIVEMAIN@/$LIVEMAIN/g" \
  -e "s/@MARKER@/$MARKER/g" \
  -e "s/@MEDIALABEL@/$MEDIALABEL/g" \
  -e "s/@PERSISTENCE@/$PERSISTENCE/g" \
  -e "s/@DARKSTAR@/$LIVE_HOSTNAME/g" \
  -e "s/@LIVEUID@/$LIVEUID/g" \
  -e "s/@DISTRO@/$DISTRO/g" \
  -e "s/@CDISTRO@/${DISTRO^}/g" \
  -e "s/@UDISTRO@/${DISTRO^^}/g" \
  -e "s/@VERSION@/$VERSION/g" \
  -e "s/@SQ_EXT_AVAIL@/${SQ_EXT_AVAIL}/g" \
  -e "s,@DEF_KBD@,${DEF_KBD},g" \
  -e "s,@DEF_LOCALE@,${DEF_LOCALE},g" \
  -e "s,@DEF_TZ@,${DEF_TZ},g" \
  > ${LIVE_ROOTDIR}/boot/initrd-tree/init
cat /dev/null > ${LIVE_ROOTDIR}/boot/initrd-tree/luksdev
# We do not add openobex to the initrd and don't want to see irrelevant errors:
rm ${LIVE_ROOTDIR}/boot/initrd-tree/lib/udev/rules.d/*openobex*rules 2>${DBGOUT} || true
# Add dhcpcd for NFS root support (just to have it - even if we won't need it):
DHCPD_PKG=$(find ${DEF_SL_PKGROOT}/../ -name "dhcpcd-*.t?z" |head -1)
tar -C ${LIVE_ROOTDIR}/boot/initrd-tree/ -xf ${DHCPD_PKG} \
  var/lib/dhcpcd lib/dhcpcd sbin/dhcpcd usr/lib${DIRSUFFIX}/dhcpcd \
  etc/dhcpcd.conf.new
mv ${LIVE_ROOTDIR}/boot/initrd-tree/etc/dhcpcd.conf{.new,}

if [ "$NFSROOTSUP" = "YES" ]; then
  # Add just the right kernel network modules by pruning unneeded stuff:
  if [ "$SL_ARCH" = "x86_64" -o "$SMP32" = "NO" ]; then
    KMODS_PKG=$(find ${DEF_SL_PKGROOT}/../ -name "kernel-modules-*$(echo $KGEN |tr - _)*.t?z" |grep -v smp |head -1)
  else
    KMODS_PKG=$(find ${DEF_SL_PKGROOT}/../ -name "kernel-modules-*$(echo $KGEN |tr - _)*.t?z" |grep smp |head -1)
  fi
  KMODS_TEMP=$(mktemp -d -p /mnt -t liveslak.XXXXXX)
  if [ ! -d $KMODS_TEMP ]; then
    echo "*** Failed to create a temporary extraction directory for the initrd!"
    cleanup
    exit 1
  fi

  # We need to extract the full kernel-modules package for deps resolving:
  tar -C ${KMODS_TEMP} -xf ${KMODS_PKG}
  # Get the kernel modules:
  echo "Get the kernel modules:"
  cd ${KMODS_TEMP}
    cp -a --parents lib/modules/${KVER}/${NETMODS} \
      ${LIVE_ROOTDIR}/boot/initrd-tree/
  cd - 1>/dev/null
  # Prune the ones we do not need:
  for KNETRM in ${NETEXCL} ; do
    find ${LIVE_ROOTDIR}/boot/initrd-tree/lib/modules/${KVER}/${NETMODS} \
      -name $KNETRM -depth -exec rm -rf {} \;
  done
  # Add any dependency modules:
  for MODULE in $(find ${LIVE_ROOTDIR}/boot/initrd-tree/lib/modules/${KVER}/${NETMODS} -type f -exec basename {} .ko \;) ; do
    /sbin/modprobe --dirname ${KMODS_TEMP} --set-version $KVER --show-depends --ignore-install $MODULE 2>/dev/null |grep "^insmod " |cut -f 2 -d ' ' |while read SRCMOD; do
      if [ "$(basename $SRCMOD .ko)" != "$MODULE" ]; then
        cd ${KMODS_TEMP}
          # Need to strip ${KMODS_TEMP} from the start of ${SRCMOD}:
          cp -a --parents $(echo $SRCMOD |sed 's|'${KMODS_TEMP}'/|./|' ) \
            ${LIVE_ROOTDIR}/boot/initrd-tree/
        cd - 1>/dev/null
      fi
    done
  done
  # Remove the temporary tree:
  rm -rf ${KMODS_TEMP}
  # We added extra modules to the initrd, so we run depmod again:
  chroot ${LIVE_ROOTDIR}/boot/initrd-tree /sbin/depmod $KVER
  # Add the firmware for network cards that need them:
  KFW_PKG=$(find ${DEF_SL_PKGROOT}/../ -name "kernel-firmware-*.t?z" |head -1)
  tar tf ${KFW_PKG} |grep -E "($(echo $NETFIRMWARE |tr ' ' '|'))" \
    |xargs tar -C ${LIVE_ROOTDIR}/boot/initrd-tree/ -xf ${KFW_PKG} \
    2>/dev/null || true
fi
# Wrap up the initrd.img again:
( cd ${LIVE_ROOTDIR}/boot/initrd-tree
  find . | cpio -o -H newc | $COMPR >${LIVE_ROOTDIR}/boot/initrd_${KVER}.img 2>${DBGOUT}
)
rm -rf ${LIVE_ROOTDIR}/boot/initrd-tree

# ... and cleanup these mounts again:
umount ${LIVE_ROOTDIR}/{proc,sys,dev} || true
umount ${LIVE_ROOTDIR} || true
# Paranoia:
[ ! -z "${LIVE_BOOT}" ] && rm -rf ${LIVE_BOOT}/{etc,tmp,usr,var} 1>${DBGOUT} 2>${DBGOUT}

# Copy kernel and move the modified initrd (we do not need it in the Live OS).
# Note to self: syslinux does not 'see' files unless they are DOS 8.3 names?
rm -rf ${LIVE_STAGING}/boot
mkdir -p ${LIVE_STAGING}/boot
cp -a ${LIVE_BOOT}/boot/vmlinuz-generic*-$KGEN ${LIVE_STAGING}/boot/generic
mv ${LIVE_BOOT}/boot/initrd_${KVER}.img ${LIVE_STAGING}/boot/initrd.img

# Squash the boot directory into its own module:
mksquashfs ${LIVE_BOOT} ${LIVE_MOD_SYS}/0000-${DISTRO}_boot-${SL_VERSION}-${SL_ARCH}.sxz -noappend -comp ${SQ_COMP} ${SQ_COMP_PARAMS}

# Determine additional boot parameters to be added:
if [ -z ${KAPPEND} ]; then
  eval KAPPEND=\$KAPPEND_${LIVEDE}
fi

# Copy the syslinux configuration.
# The next block checks here for a possible UEFI grub boot image:
cp -a ${LIVE_TOOLDIR}/syslinux ${LIVE_STAGING}/boot/

# EFI support always for 64bit architecture, but conditional for 32bit.
if [ "$SL_ARCH" = "x86_64" -o "$EFI32" = "YES" ]; then
  # Copy the UEFI boot directory structure:
  mkdir -p ${LIVE_STAGING}/EFI/BOOT
  cp -a ${LIVE_TOOLDIR}/EFI/BOOT/{grub-embedded.cfg,make-grub.sh,*.txt,theme} ${LIVE_STAGING}/EFI/BOOT/
  if [ "$LIVEDE" = "XFCE" ]; then
    # We do not use the unicode font, so it can be removed to save space:
    rm -f ${LIVE_STAGING}/EFI/BOOT/theme/unicode.pf2
  fi

  # Create the grub fonts used in the theme:
  for FSIZE in 5 10 12; do
    grub-mkfont -s ${FSIZE} -av \
      -o ${LIVE_STAGING}/EFI/BOOT/theme/dejavusansmono${FSIZE}.pf2 \
      /usr/share/fonts/TTF/DejaVuSansMono.ttf \
      | grep "^Font name: "
  done

  # The grub-embedded.cfg in the bootx64.efi/bootia32.efi looks for this file:
  touch ${LIVE_STAGING}/EFI/BOOT/${MARKER}

  # Generate the UEFI grub boot image if needed:
  if [ ! -f ${LIVE_STAGING}/EFI/BOOT/boot${EFISUFF}.efi -o ! -f ${LIVE_STAGING}/boot/syslinux/efiboot.img ]; then
    ( cd ${LIVE_STAGING}/EFI/BOOT
      sed -i -e "s/SLACKWARELIVE/${MARKER}/g" grub-embedded.cfg
      sh make-grub.sh EFIFORM=${EFIFORM} EFISUFF=${EFISUFF}
    )
  fi

  # Generate the grub configuration for UEFI boot:
  gen_uefimenu ${LIVE_STAGING}/EFI/BOOT
fi # End EFI support menu.

if [ "$SYSMENU" = "NO" ]; then
  # Simple isolinux choices, no UEFI support.
  echo "include syslinux.cfg" > ${LIVE_STAGING}/boot/syslinux/isolinux.cfg
else
  # NOTE: Convert a PNG image to VESA bitmap before using it with vesamenu:
  # $ convert -depth 16 -colors 65536 in.png out.png
  cp -a /usr/share/syslinux/vesamenu.c32 ${LIVE_STAGING}/boot/syslinux/
  echo "include menu/vesamenu.cfg" > ${LIVE_STAGING}/boot/syslinux/isolinux.cfg
  # Generate the multi-language menu:
  gen_bootmenu ${LIVE_STAGING}/boot/syslinux
fi
for SLFILE in message.txt f2.txt syslinux.cfg lang.cfg ; do
  if [ -f ${LIVE_STAGING}/boot/syslinux/${SLFILE} ]; then
    sed -i ${LIVE_STAGING}/boot/syslinux/${SLFILE} \
      -e "s/@DIRSUFFIX@/$DIRSUFFIX/g" \
      -e "s/@DISTRO@/$DISTRO/g" \
      -e "s/@CDISTRO@/${DISTRO^}/g" \
      -e "s/@UDISTRO@/${DISTRO^^}/g" \
      -e "s/@KVER@/$KVER/g" \
      -e "s/@LIVEMAIN@/$LIVEMAIN/g" \
      -e "s/@MEDIALABEL@/$MEDIALABEL/g" \
      -e "s/@LIVEDE@/$(echo $LIVEDE |sed 's/BASE//')/g" \
      -e "s/@SL_VERSION@/$SL_VERSION/g"
  fi
done
# The iso2usb.sh script can use this copy of a MBR file as fallback:
cp -a /usr/share/syslinux/gptmbr.bin ${LIVE_STAGING}/boot/syslinux/
# We have memtest in the syslinux bootmenu:
mv ${LIVE_STAGING}/boot/syslinux/memtest ${LIVE_STAGING}/boot/

# Make use of proper console font if we have it available:
if [ -f /usr/share/kbd/consolefonts/${CONSFONT}.gz ]; then
  gunzip -cd /usr/share/kbd/consolefonts/${CONSFONT}.gz > ${LIVE_STAGING}/boot/syslinux/${CONSFONT}
elif [ ! -f ${LIVE_STAGING}/boot/syslinux/${CONSFONT} ]; then
  sed -i -e "s/^font .*/#&/" ${LIVE_STAGING}/boot/syslinux/menu/*menu*.cfg
fi

# -----------------------------------------------------------------------------
# Assemble the ISO
# -----------------------------------------------------------------------------

echo "-- Assemble the ISO image."

# We keep strict size requirements for the XFCE ISO:
# addons/optional modules will not be added.
#if [ "$LIVEDE" != "XFCE"  ]; then
if [ ! -z "$LIVEDE" ]; then
  # Copy our stockpile of add-on modules into place:
  if ls ${LIVE_TOOLDIR}/addons/*.sxz 1>/dev/null 2>&1 ; then
    cp ${LIVE_TOOLDIR}/addons/*.sxz ${LIVE_MOD_ADD}/
  fi
  # If we have optionals, copy those too:
  if ls ${LIVE_TOOLDIR}/optional/*.sxz 1>/dev/null 2>&1 ; then
    cp ${LIVE_TOOLDIR}/optional/*.sxz ${LIVE_MOD_OPT}/
  fi
fi

if [ "$LIVEDE" != "XFCE" -a "$LIVEDE" != "SLACKWARE" ]; then
  # KDE/PLASMA etc will profit from accelerated graphics support;
  # however the SLACKWARE ISO should not have any non-Slackware content.
  # You can 'cheat' when building the SLACKWARE ISO by copying the graphics
  # drivers into the 'optional' directory yourself.
  if ls ${LIVE_TOOLDIR}/graphics/*${KVER}-${SL_VERSION}-${SL_ARCH}.sxz 1>/dev/null 2>&1 ; then
    # Add custom (proprietary) graphics drivers:
    echo "-- Adding binary GPU drivers supporting kernel ${KVER}."
    cp ${LIVE_TOOLDIR}/graphics/*${KVER}-${SL_VERSION}-${SL_ARCH}.sxz ${LIVE_MOD_OPT}/
  fi
fi

# Directory for rootcopy files (everything placed here will be copied
# verbatim into the overlay root):
mkdir -p ${LIVE_STAGING}/${LIVEMAIN}/rootcopy

# Create an ISO file from the directories found below ${LIVE_STAGING}:
create_iso ${LIVE_STAGING}

# Clean out the mounts etc:
cleanup

