FYI: script to remaster Clonezilla iso file

[ggsf]

According to Clonezilla FAQ/Q&A, question "40. How can I remaster Clonezilla iso file ?" I have been using the script provided by Casual J. Programmer
http://www.freewebs.com/casualprogrammer/Downloads/editCZCD
to remaster Clonezilla iso file.

This very useful script ,is for previous versions of Clonezilla that used the /pkg/opt_drbl.tgz file for the Clonezilla related files.

Since version 1.2.0-1, a squashfs filesystem is used, so a modified version of the script must be used.

I did not find an option to attach the file so i add it "inline" to this text (following the script there are same instructions to use it)

--- Begin script ---

    #!/bin/sh

    # editCZCD version Fr 11. Jan 18:02:48 CET 2008

    # Use the editCzCD script to modify clonezilla live cd content and burn a CD from it.

    # Copyright (C) Casual J. Programmer <cprogrammer@users.sourceforge.net> partially

    # based on script ocs-iso by Steven Shiau <steven _at_ nchc org tw>

    # The script is provided as is under GPL, no responsibilty taken for any damage caused using it.

    # Suggestions and Feedback welcome, have a lot of fun …

    # Maybe freely used and copied provided this header remains intact.

    # Tecnología de la Información <ti@imm.gub.uy>

    # Modified to handle new versions of Clonezilla (since 1.2.0-1) which use squashfs

    # Use genisoimage instead of mkisofs. genisoimage is a fork of mkisofs

    # Details on mkisofs with man mkisofs. Parameters used here:

    #

    # -A Application ID written to Volume Header

    # -b Eltorito boot image

    # -boot-load-size Load # sectors on boot

    # -c Boot catalog, required for eltorito CD

    # -J Generate Joliet directory records

    # -r Files and directories are globally readable on the client.

    # -l Allow full 31-character filenames

    # -no-emul-boot No disk emulation for boot

    # -o Filename of the iso image to generate

    # -p Preparer

    # -publisher

    # -V Volume label-V $VOLUME

    #CZVERSION="clonezilla-live-1.0.9-1.iso"

    CZVERSION="clonezilla-live-1.2.2-31.iso"

    #Set to the version you want to use, for details see http://clonezilla.sourceforge.net/

    PREFIX="cjp-"

    ISO_FILE="${PREFIX}${CZVERSION}"

    APPLICATION="Clonezilla Live CD"

    PUBLISHER="DRBL/Clonezilla http://drbl.name http://clonezilla.org"

    #Leave application and publisher alone

    VOLUME="CJP's special CZCD"

    PREPARER="Casual J. Programmer <cprogrammer@users.sourceforge.net>"

    #Set volume to your liking, preparer to your name and email or leave blank

    DLFROM="http://mesh.dl.sourceforge.net/sourceforge/clonezilla"

    # http://puzzle.dl.sourceforge.net/sourceforge/clonezilla

    # The download host that suits you best

    BASEDIR=/tmp

    TMPDIRO=$BASEDIR/clonezilla

    TMPDIRN=$BASEDIR/clonezillan

    MAKE="-makeiso"

    ##OUTPUTDEV=$(cdrecord -devices | grep 0 | cut -characters=10-18)

    #may be /dev/scd0 or other on your system, use cdrecord -devices to identify

    # use wodim instead of cdrecord. wodim is a fork of cdrecord

    # identify devices only when -b is specified

    #OUTPUTDEV=$(wodim -devices | grep 0 | cut -delimiter=\' -fields=2)

    if ; then

      echo "$0 should be run as root!"

      exit 1

    fi

    if ! type genisoimage &>/dev/null; then

      echo "Program genisoimage is not available! You have to install it."

      exit 1

    fi

    if ; then

      if ! type wodim &>/dev/null; then

        echo "Program wodim is not available! You have to install it."

        exit 1

      fi

      OUTPUTDEV=$(wodim -devices | grep 0 | cut -delimiter=\' -fields=2)

       && echo "-b option specified but no drive found!" && exit 1

    fi

    if ! type unsquashfs &>/dev/null; then

      echo "Program unsquashfs is not available! You have to install it."

      exit 1

    fi

    if ! type mksquashfs &>/dev/null; then

      echo "Program mksquashfs is not available! You have to install it."

      exit 1

    fi

    rm -rf $TMPDIRO

    rm -rf $TMPDIRN

    if ; then

        wget -P $BASEDIR $DLFROM/$CZVERSION

    fi

    mkdir $TMPDIRO

    mkdir $TMPDIRN

    echo "Preparing to decompress filesystem.squashfs…"

    mount -o loop $BASEDIR/$CZVERSION $TMPDIRO

    cp -a $TMPDIRO/* $TMPDIRN

    ##chmod -R 755 $TMPDIRN

    umount $TMPDIRO

    ##cd $TMPDIRN/pkg

    ##tar xzf opt_drbl.tgz

    cd $TMPDIRN/live

    unsquashfs filesystem.squashfs

    echo "Now edit any part of clonezilla live-cd in ${TMPDIRN}/live/squashfs-root/opt/drbl/"

    echo "when finished leave this shell by typing exit, if called with -b option"

    echo "place an empty CD or CD/RW in the drive."

    ##cd $TMPDIRN/pkg/opt/drbl

    cd $TMPDIRN/live/squashfs-root/opt/drbl

    sh

    echo "modified on $(date) by $PREPARER" >> $TMPDIRN/"Clonezilla-Live-Version"

    ##cd $TMPDIRN/pkg

    ##tar czf opt_drbl.tgz opt

    ##rm -rf opt

    echo "Creating new filesystem.squashfs…"

    cd $TMPDIRN/live/

    #

    blocksize=$(unsquashfs -s filesystem.squashfs | grep "Block size" | awk '{print $3}')

    b=""

    if

    then

      b="-b $blocksize"

    fi

    rm -f filesystem.squashfs

    mksquashfs squashfs-root filesystem.squashfs $b

    rm -rf squashfs-root

    cd $BASEDIR

    echo "Creating $BASEDIR/$ISO_FILE…"

    # use genisoimage instead of mkisofs. genisoimage is a fork of mkisofs

    genisoimage \

     -A "$APPLICATION" \

     -V "$VOLUME" \

     -p "$PREPARER" -publisher "$PUBLISHER" \

     -b isolinux/isolinux.bin -c isolinux/boot.cat \

     -no-emul-boot -boot-load-size 4 -boot-info-table \

      -r -J -l -input-charset iso8859-1 $TMPDIRN | \

      (

       case "$1" in

        "-b")

           umount $OUTPUTDEV 2>/dev/null

           ##cdrecord -dev=$OUTPUTDEV blank=fast

           ##cdrecord dev=$OUTPUTDEV -data -eject -v -

           wodim dev=$OUTPUTDEV blank=fast

           wodim dev=$OUTPUTDEV -data -eject -v -

           echo "Created $VOLUME"

           ;;

        *)

           # use /dev/stdout as the bridge

           cat - > $BASEDIR/$ISO_FILE

           echo "Created $BASEDIR/$ISO_FILE"

           ;;

       esac

      )

    if type isohybrid &>/dev/null; then

      if ; then

        echo -n "Isohybriding $BASEDIR/$ISO_FILE… "

        isohybrid $BASEDIR/$ISO_FILE

        echo "done!"

      fi

    fi

    # end editCZCD

--- End script ---

Instructions to use the script

1- Copy the code to a file, for example  editCZCDsquashfs.sh
2- Give it execute permissions:
    chmox +x  editCZCDsquashfs.sh
3- Set the variable CZVERSION to the version you want to remaster
4- Copy the version of Clonezilla you want to remaster to /tmp/ (otherwise the file will be downloaded form Internet, by default from the host defined in the variable DLFROM)
5- run the script as root, make any necesary changes and when done leave by typing exit, if called with -b option" place an empty CD or CD/RW in the drive. (this was not tested)

Prerequisites:

The following software must be installed for the script to work

syslinux (at least version 3.80)
genisoimage (Tested with version 1.1.9)
wodim (version 1.1.6. Used with version -b, not tested)
squashfs-tools (for unsquashfs and mksquashfs)
isohybrid (optional, for "Isohybriding" the iso file)

I installed a virtual machine (using VirtualBox) with Debian lenny, kernel 2.6.29, squashfs-tools 4.0 and syslinux 3.80 from backports.undebian.org

The squashfs filesystem with the Clonezilla files is version 4.0 so the 2.6.29 kernel was used.

To add the backports repository:

For the kernel:

Add the following line to your /etc/apt/sources.list:

deb http://backports.undebian.org/repositories/backports-kernel/ ./

Add the key:

wget -q -O - http://backports.undebian.org/repositories/backports-kernel/archive-key.asc | apt-key add -

for syslinux

deb http://backports.undebian.org/repositories/backports-other/ ./

It is not necessary to add the key from /backports-other/archive-key.asc, it is the same that the key added for the kernel from /backports-kernel/archive-key.asc

Best regards

[ggsf]

Sorry, but by using "Markdown syntax" for the code, there are characters that make it useless as a script

Sending it without pretty formating, but since i can't (do not know how to) preview it i do not know what th result may be…

--- Begin script ---

#!/bin/sh
# editCZCD version Fr 11. Jan 18:02:48 CET 2008
# Use the editCzCD script to modify clonezilla live cd content and burn a CD from it.
# Copyright (C) Casual J. Programmer <cprogrammer@users.sourceforge.net> partially
# based on script ocs-iso by Steven Shiau <steven _at_ nchc org tw>
# The script is provided as is under GPL, no responsibilty taken for any damage caused using it.
# Suggestions and Feedback welcome, have a lot of fun …
# Maybe freely used and copied provided this header remains intact.

# Tecnología de la Información <ti@imm.gub.uy>
# Modified to handle new versions of Clonezilla (since 1.2.0-1) which use squashfs

# Use genisoimage instead of mkisofs. genisoimage is a fork of mkisofs
# Details on mkisofs with man mkisofs. Parameters used here:
#
# -A Application ID written to Volume Header
# -b Eltorito boot image
# -boot-load-size Load # sectors on boot
# -c Boot catalog, required for eltorito CD
# -J Generate Joliet directory records
# -r Files and directories are globally readable on the client.
# -l Allow full 31-character filenames
# -no-emul-boot No disk emulation for boot
# -o Filename of the iso image to generate
# -p Preparer
# -publisher
# -V Volume label-V $VOLUME

#CZVERSION="clonezilla-live-1.0.9-1.iso"
CZVERSION="clonezilla-live-1.2.2-31.iso"
#clonezilla-live-1.0.7-18.iso
#Set to the version you want to use, for details see http://clonezilla.sourceforge.net/

PREFIX="cjp-"
ISO_FILE="${PREFIX}${CZVERSION}"

APPLICATION="Clonezilla Live CD"
PUBLISHER="DRBL/Clonezilla http://drbl.name http://clonezilla.org"
#Leave application and publisher alone

VOLUME="CJP's special CZCD"
PREPARER="Casual J. Programmer <cprogrammer@users.sourceforge.net>"
#Set volume to your liking, preparer to your name and email or leave blank

DLFROM="http://mesh.dl.sourceforge.net/sourceforge/clonezilla"
# http://puzzle.dl.sourceforge.net/sourceforge/clonezilla
# The download host that suits you best

BASEDIR=/tmp
TMPDIRO=$BASEDIR/clonezilla
TMPDIRN=$BASEDIR/clonezillan
MAKE="-makeiso"
##OUTPUTDEV=$(cdrecord -devices | grep 0 | cut -characters=10-18)
#may be /dev/scd0 or other on your system, use cdrecord -devices to identify

# use wodim instead of cdrecord. wodim is a fork of cdrecord
# identify devices only when -b is specified
#OUTPUTDEV=$(wodim -devices | grep 0 | cut -delimiter=\' -fields=2)

if ; then
  echo "$0 should be run as root!"
  exit 1
fi

if ! type genisoimage &>/dev/null; then
  echo "Program genisoimage is not available! You have to install it."
  exit 1
fi

if ; then
  if ! type wodim &>/dev/null; then
    echo "Program wodim is not available! You have to install it."
    exit 1
  fi
  OUTPUTDEV=$(wodim -devices | grep 0 | cut -delimiter=\' -fields=2)
   && echo "-b option specified but no drive found!" && exit 1
fi

if ! type unsquashfs &>/dev/null; then
  echo "Program unsquashfs is not available! You have to install it."
  exit 1
fi

if ! type mksquashfs &>/dev/null; then
  echo "Program mksquashfs is not available! You have to install it."
  exit 1
fi

rm -rf $TMPDIRO
rm -rf $TMPDIRN

if ; then
        wget -P $BASEDIR $DLFROM/$CZVERSION
fi

mkdir $TMPDIRO
mkdir $TMPDIRN

echo "Preparing to decompress filesystem.squashfs…"
mount -o loop $BASEDIR/$CZVERSION $TMPDIRO

cp -a $TMPDIRO/* $TMPDIRN
##chmod -R 755 $TMPDIRN

umount $TMPDIRO

##cd $TMPDIRN/pkg
##tar xzf opt_drbl.tgz

cd $TMPDIRN/live
unsquashfs filesystem.squashfs

echo "Now edit any part of clonezilla live-cd in ${TMPDIRN}/live/squashfs-root/opt/drbl/"
echo "when finished leave this shell by typing exit, if called with -b option"
echo "place an empty CD or CD/RW in the drive."

##cd $TMPDIRN/pkg/opt/drbl
cd $TMPDIRN/live/squashfs-root/opt/drbl

sh

echo "modified on $(date) by $PREPARER" >> $TMPDIRN/"Clonezilla-Live-Version"
##cd $TMPDIRN/pkg
##tar czf opt_drbl.tgz opt
##rm -rf opt

echo "Creating new filesystem.squashfs…"
cd $TMPDIRN/live/
#
blocksize=$(unsquashfs -s filesystem.squashfs | grep "Block size" | awk '{print $3}')
b=""
if
then
  b="-b $blocksize"
fi
rm -f filesystem.squashfs
mksquashfs squashfs-root filesystem.squashfs $b
rm -rf squashfs-root
cd $BASEDIR

echo "Creating $BASEDIR/$ISO_FILE…"
# use genisoimage instead of mkisofs. genisoimage is a fork of mkisofs
genisoimage \
-A "$APPLICATION" \
-V "$VOLUME" \
-p "$PREPARER" -publisher "$PUBLISHER" \
-b isolinux/isolinux.bin -c isolinux/boot.cat \
-no-emul-boot -boot-load-size 4 -boot-info-table \
  -r -J -l -input-charset iso8859-1 $TMPDIRN | \
  (
   case "$1" in
    "-b")
       umount $OUTPUTDEV 2>/dev/null
       ##cdrecord -dev=$OUTPUTDEV blank=fast
       ##cdrecord dev=$OUTPUTDEV -data -eject -v -
       wodim dev=$OUTPUTDEV blank=fast
       wodim dev=$OUTPUTDEV -data -eject -v -
       echo "Created $VOLUME"
       ;;
    *)
       # use /dev/stdout as the bridge
       cat - > $BASEDIR/$ISO_FILE
       echo "Created $BASEDIR/$ISO_FILE"
       ;;
   esac
  )

if type isohybrid &>/dev/null; then
  if ; then
    echo -n "Isohybriding $BASEDIR/$ISO_FILE… "
    isohybrid $BASEDIR/$ISO_FILE
    echo "done!"
  fi
fi

# end editCZCD

--- End script ---

[ggsf]

useless too, what a shame…

In the first, formatted script it's necessary to convert those HTML entities…

[Steven Shiau]

Gsusterman,

Could you please send that to me (steven _at_ nchc org tw)

BTW, I have suggested to sourceforge that we should have a way to escape the "Markdown syntax", i.e. we should be able to choose not to use that for the whole post, not just a few lines. However, looks like it's not accepted…

Steven.

[ggsf]

I have sent the script.

This reply is only to confirm that i read your reply and i sent the script.
Just in case the mail does not arrive you do not have to wonder whether the mail was sent or not. 

[ggsf]

The formatting in the original message appears to have been "magically" fixed

i would be very interested to know how

[Steven Shiau]

OK, I have put the file on the FAQ:

  
    http://drbl.sourceforge.net/faq/fine-print.php?path=./2_System/39_remaster_clonezilla_iso.faq#39_remaster_clonezilla_iso.faq

Thanks for sharing that.

Steven.