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#!/bin/bash

# remastersys script to make an installable livecd/dvd from an (XK)Ubuntu installed 
# and customized system
#
#
#  Created by Tony "Fragadelic" Brijeski
#
#  Copyright 2007,2008 Under the GNU GPL2 License
#
#  Originally Created February 12th, 2007
#
#
#
#  This version is only for grub2 based Ubuntu's and variants like Karmic 9.10 and up
#
#

# checking to make sure script is running with root privileges
. /etc/remastersys/remastersys.version

testroot="`whoami`"

if [ "$testroot" != "root" ]; then
     echo "Usage of remastersys $REMASTERSYSVERSION is as follows:"
     echo " "
     echo "   sudo remastersys backup|clean|dist [cdfs|iso] [filename.iso]"
     echo " "
     echo " "
     echo "Examples:"
     echo " "
     echo "   sudo remastersys backup   (to make a livecd/dvd backup of your system)"
     echo " "
     echo "   sudo remastersys backup custom.iso"
     echo "                             (to make a livecd/dvd backup and call the iso custom.iso)" 
     echo " "
     echo "   sudo remastersys clean    (to clean up temporary files of remastersys)"
     echo " "
     echo "   sudo remastersys dist     (to make a distributable livecd/dvd of your system)"
     echo " "
     echo "   sudo remastersys dist cdfs"
     echo "                             (to make a distributable livecd/dvd filesystem only)"
     echo " "
     echo "   sudo remastersys dist iso custom.iso"
     echo "                             (to make a distributable iso named custom.iso but only"
     echo "                              if the cdfs is already present)"
     echo " "
     echo "   cdfs and iso options should only be used if you wish to modify something on the"
     echo "   cd before the iso is created.  An example of this would be to modify the isolinux"
     echo "   portion of the livecd/dvd"
     echo " "

     exit 1
fi

# load the remastersys.conf file 

. /etc/remastersys.conf

# if the remastersys.conf file is incorrect or missing, make sure to set defaults

if [ "$LIVEUSER" = "" ]; then
#Somebody must have removed the username from the configuration file
echo 
#this is a custom live user
LIVEUSER="custom"
fi

#make sure live user is all lowercase
LIVEUSER="`echo $LIVEUSER | awk '{print tolower ($0)}'`"


if [ "$WORKDIR" = "" ]; then
WORKDIR="/home/remastersys/remastersys"
else
WORKDIR="$WORKDIR/remastersys"
fi

if [ "$LIVECDLABEL" = "" ]; then
LIVECDLABEL="Custom Live CD"
fi

#if [ "$CDBOOTTYPE" != "GRUB" ]; then
CDBOOTTYPE="ISOLINUX"
#fi

if [ "$LIVECDURL" = "" ]; then
  LIVECDURL="http://www.geekconnection.org/remastersys"
fi


if [ "$2" = "cdfs" ]; then
echo "Creating the cd filesystem only"
elif [ "$2" = "iso" ]; then
echo "Creating the iso file only"
elif [ "$2" = "" ]; then
echo " "
else
CUSTOMISO="$2"
fi

if [ "$3" != "" ]; then
CUSTOMISO="$3"
fi

if [ "$CUSTOMISO" = "" ]; then
CUSTOMISO="custom$1.iso"
fi

case $1  in

  backup)
     echo "System Backup Mode Selected"
     ;;

  clean)
     echo "Removing the build directory now..."
     rm -rf $WORKDIR
     echo "Done...Exiting"
     exit 0
     ;;

  dist)
     echo "Distribution Mode Selected"
     ;;


  *)
     echo "Usage of remastersys $REMASTERSYSVERSION is as follows:"
     echo " "
     echo "   sudo remastersys backup|clean|dist [cdfs|iso] [filename.iso]"
     echo " "
     echo " "
     echo "Examples:"
     echo " "
     echo "   sudo remastersys backup   (to make a livecd/dvd backup of your system)"
     echo " "
     echo "   sudo remastersys backup custom.iso"
     echo "                             (to make a livecd/dvd backup and call the iso custom.iso)" 
     echo " "
     echo "   sudo remastersys clean    (to clean up temporary files of remastersys)"
     echo " "
     echo "   sudo remastersys dist     (to make a distributable livecd/dvd of your system)"
     echo " "
     echo "   sudo remastersys dist cdfs"
     echo "                             (to make a distributable livecd/dvd filesystem only)"
     echo " "
     echo "   sudo remastersys dist iso custom.iso"
     echo "                             (to make a distributable iso named custom.iso but only"
     echo "                              if the cdfs is already present)"
     echo " "
     echo "   cdfs and iso options should only be used if you wish to modify something on the"
     echo "   cd before the iso is created.  An example of this would be to modify the isolinux"
     echo "   portion of the livecd/dvd"
     echo " "
     exit 1
     ;;

esac


cdfs (){

#removing popularity-contest as it causes a problem when installing with ubiquity
apt-get -y -q remove popularity-contest

# check whether system is gnome or kde based to load the correct ubiquity frontend

if [ "`cat /etc/X11/default-display-manager`" = "/usr/bin/kdm" ]; then
apt-get -y -q install ubiquity-frontend-kde
apt-get -y -q remove ubiquity-frontend-gtk
else
apt-get -y -q install ubiquity-frontend-gtk
apt-get -y -q remove ubiquity-frontend-kde
apt-get -y -q install metacity
fi

# prevent the installer from changing the apt sources.list

if [ ! -f "/usr/share/ubiquity/apt-setup.saved" ]; then
cp /usr/share/ubiquity/apt-setup /usr/share/ubiquity/apt-setup.saved
fi

sleep 1

# Step 3 - Create the CD tree in $WORKDIR/ISOTMP
echo "Checking if the $WORKDIR folder has been created"
if [ -d "$WORKDIR" ]; then
rm -rf $WORKDIR/dummysys/var/*
rm -rf $WORKDIR/dummysys/etc/*
rm -rf $WORKDIR/ISOTMP/isolinux
rm -rf $WORKDIR/ISOTMP/grub
rm -rf $WORKDIR/ISOTMP/.disk

else
mkdir -p $WORKDIR/ISOTMP/casper
mkdir -p $WORKDIR/ISOTMP/preseed
mkdir -p $WORKDIR/dummysys/dev
mkdir -p $WORKDIR/dummysys/etc
mkdir -p $WORKDIR/dummysys/proc
mkdir -p $WORKDIR/dummysys/tmp
mkdir -p $WORKDIR/dummysys/sys
mkdir -p $WORKDIR/dummysys/mnt
mkdir -p $WORKDIR/dummysys/media/cdrom
mkdir -p $WORKDIR/dummysys/var
chmod ug+rwx,o+rwt $WORKDIR/dummysys/tmp

fi


mkdir -p $WORKDIR/ISOTMP/isolinux

mkdir -p $WORKDIR/ISOTMP/.disk


echo "Copying /var and /etc to temp area and excluding extra files"

if [ "$EXCLUDES" != "" ]; then
for addvar in $EXCLUDES ; do
VAREXCLUDES="$VAREXCLUDES --exclude='$addvar' "
done
fi

rsync --exclude='*.log.*' --exclude='*.pid' --exclude='*.bak' --exclude='*.[0-9].gz' --exclude='*.deb' $VAREXCLUDES-a /var/. $WORKDIR/dummysys/var/.
rsync $VAREXCLUDES-a /etc/. $WORKDIR/dummysys/etc/.

rm -rf $WORKDIR/dummysys/etc/X11/xorg.conf*
rm -rf $WORKDIR/dummysys/etc/resolv.conf
rm -rf $WORKDIR/dummysys/etc/hosts
rm -rf $WORKDIR/dummysys/etc/hostname
rm -rf $WORKDIR/dummysys/etc/timezone
rm -rf $WORKDIR/dummysys/etc/mtab
rm -rf $WORKDIR/dummysys/etc/fstab
rm -rf $WORKDIR/dummysys/etc/udev/rules.d/70-persistent*
rm -rf $WORKDIR/dummysys/etc/cups/ssl/server.crt
rm -rf $WORKDIR/dummysys/etc/cups/ssl/server.key
rm -rf $WORKDIR/dummysys/etc/ssh/ssh_host_rsa_key
rm -rf $WORKDIR/dummysys/etc/ssh/ssh_host_dsa_key.pub
rm -rf $WORKDIR/dummysys/etc/ssh/ssh_host_dsa_key
rm -rf $WORKDIR/dummysys/etc/ssh/ssh_host_rsa_key.pub
rm -rf $WORKDIR/dummysys/etc/gdm/gdm.conf-custom
rm -rf $WORKDIR/dummysys/etc/gdm/custom.conf
ls $WORKDIR/dummysys/var/lib/apt/lists | grep -v ".gpg" | grep -v "lock" | grep -v "partial" | xargs -i rm $WORKDIR/dummysys/var/lib/apt/lists/{} ; 

if [ "$1" = "dist" ]; then

echo "  " > $WORKDIR/dummysys/etc/gdm/gdm.conf-custom
rm -rf $WORKDIR/dummysys/etc/group
rm -rf $WORKDIR/dummysys/etc/passwd
rm -rf $WORKDIR/dummysys/etc/shadow
rm -rf $WORKDIR/dummysys/etc/shadow-
rm -rf $WORKDIR/dummysys/etc/gshadow
rm -rf $WORKDIR/dummysys/etc/gshadow-
rm -rf $WORKDIR/dummysys/etc/wicd/wired-settings.conf
rm -rf $WORKDIR/dummysys/etc/wicd/wireless-settings.conf
ls $WORKDIR/dummysys/etc/NetworkManager/system-connections | xargs -i rm $WORKDIR/dummysys/etc/NetworkManager/system-connections/{} ;
rm -rf $WORKDIR/dummysys/etc/printcap
rm -rf $WORKDIR/dummysys/etc/cups/printers.conf
touch $WORKDIR/dummysys/etc/printcap
touch $WORKDIR/dummysys/etc/cups/printers.conf

find $WORKDIR/dummysys/var/run $WORKDIR/dummysys/var/log $WORKDIR/dummysys/var/mail $WORKDIR/dummysys/var/spool $WORKDIR/dummysys/var/lock $WORKDIR/dummysys/var/backups $WORKDIR/dummysys/var/tmp $WORKDIR/dummysys/var/crash $WORKDIR/dummysys/var/lib/ubiquity -type f -exec rm {} ;

for i in dpkg.log lastlog mail.log syslog auth.log daemon.log faillog lpr.log mail.warn user.log boot debug mail.err messages wtmp bootstrap.log dmesg kern.log mail.info
do
        touch $WORKDIR/dummysys/var/log/${i}
done

# remove the non system users on the passwd and group files and copy them to dummysys

# see if any temp users left over from previous versions of remastersys as the process has now changed

grep '^[^:]*:[^:]*:[5-9][0-9][0-9]:' /etc/passwd | awk -F ":" '{print "/usr/sbin/userdel -f",$1}'> $WORKDIR/cleantmpusers
. $WORKDIR/cleantmpusers

grep '^[^:]*:[^:]*:[0-9]:' /etc/passwd >> $WORKDIR/dummysys/etc/passwd
grep '^[^:]*:[^:]*:[0-9][0-9]:' /etc/passwd >> $WORKDIR/dummysys/etc/passwd
grep '^[^:]*:[^:]*:[0-9][0-9][0-9]:' /etc/passwd >> $WORKDIR/dummysys/etc/passwd
grep '^[^:]*:[^:]*:[3-9][0-9][0-9][0-9][0-9]:' /etc/passwd >> $WORKDIR/dummysys/etc/passwd

grep '^[^:]*:[^:]*:[0-9]:' /etc/group >> $WORKDIR/dummysys/etc/group
grep '^[^:]*:[^:]*:[0-9][0-9]:' /etc/group >> $WORKDIR/dummysys/etc/group
grep '^[^:]*:[^:]*:[0-9][0-9][0-9]:' /etc/group >> $WORKDIR/dummysys/etc/group
grep '^[^:]*:[^:]*:[3-9][0-9][0-9][0-9][0-9]:' /etc/group >> $WORKDIR/dummysys/etc/group

grep '^[^:]*:[^:]*:[5-9][0-9][0-9]:' /etc/passwd | awk -F ":" '{print $1}'> $WORKDIR/tmpusers1
grep '^[^:]*:[^:]*:[1-9][0-9][0-9][0-9]:' /etc/passwd | awk -F ":" '{print $1}'> $WORKDIR/tmpusers2
grep '^[^:]*:[^:]*:[1-2][0-9][0-9][0-9][0-9]:' /etc/passwd | awk -F ":" '{print $1}'> $WORKDIR/tmpusers3

cat $WORKDIR/tmpusers1 $WORKDIR/tmpusers2 $WORKDIR/tmpusers3 > $WORKDIR/tmpusers

cat $WORKDIR/tmpusers | while read LINE ;do

echo $LINE | xargs -i sed -e 's/,{}//g' $WORKDIR/dummysys/etc/group > $WORKDIR/dummysys/etc/group.new1
echo $LINE | xargs -i sed -e 's/{},//g' $WORKDIR/dummysys/etc/group.new1 > $WORKDIR/dummysys/etc/group.new2
echo $LINE | xargs -i sed -e 's/{}//g' $WORKDIR/dummysys/etc/group.new2 > $WORKDIR/dummysys/etc/group

rm -rf $WORKDIR/dummysys/etc/group.new1 $WORKDIR/dummysys/etc/group.new2

done

fi


# make sure the adduser and autologin functions of casper as set according to the mode

[ "$1" = "dist" ] && [ ! -d $WORKDIR/dummysys/home ] && mkdir $WORKDIR/dummysys/home
[ "$1" = "dist" ] && chmod 755 /usr/share/initramfs-tools/scripts/casper-bottom/*adduser /usr/share/initramfs-tools/scripts/casper-bottom/*autologin 
[ "$1" = "backup" ] && [ -d $WORKDIR/dummysys/home ] && rm -rf $WORKDIR/dummysys/home
[ "$1" = "backup" ] && chmod 644 /usr/share/initramfs-tools/scripts/casper-bottom/*adduser /usr/share/initramfs-tools/scripts/casper-bottom/*autologin

# copy over some of the necessary stuff for the livecd

#copy any preseed files
cp /etc/remastersys/preseed/* $WORKDIR/ISOTMP/preseed/


#BOOT Type is isolinux

cp /boot/memtest86+.bin $WORKDIR/ISOTMP/isolinux/memtest

# check and see if they have a custom isolinux already setup. eg. they copied over the isolinux folder from their original livecd or made a custom one for their distro

if [ ! -f /etc/remastersys/customisolinux/isolinux.cfg ]; then

find /usr -name 'isolinux.bin' -exec cp {} $WORKDIR/ISOTMP/isolinux/ ;
find /usr -name 'vesamenu.c32' -exec cp {} $WORKDIR/ISOTMP/isolinux/ ;

# setup isolinux for the livecd

VERSION=`lsb_release -r | awk '{print $2}' | awk -F "." '{print $1}'`

sed -e 's/__LIVECDLABEL__/'"$LIVECDLABEL"'/g' /etc/remastersys/isolinux/isolinux.cfg.vesamenu > $WORKDIR/ISOTMP/isolinux/isolinux.cfg
cp /etc/remastersys/isolinux/splash.png $WORKDIR/ISOTMP/isolinux/splash.png

else

cp /etc/remastersys/customisolinux/* $WORKDIR/ISOTMP/isolinux/

fi


ARCH=`archdetect | awk -F "/" '{print $1}'`

cat > $WORKDIR/ISOTMP/README.diskdefines <<FOO
#define DISKNAME  $LIVECDLABEL
#define TYPE  binary
#define TYPEbinary  1
#define ARCH  $ARCH
#define ARCH$ARCH  1
#define DISKNUM  1
#define DISKNUM1  1
#define TOTALNUM  0
#define TOTALNUM0  1
FOO
cp $WORKDIR/ISOTMP/README.diskdefines $WORKDIR/ISOTMP/casper/README.diskdefines

sleep 1

# Step 4 - Make the filesystem.manifest and filesystem.manifest-desktop
echo "Creating filesystem.manifest and filesystem.manifest-desktop"

dpkg-query -W --showformat='${Package} ${Version}\\n' 
        > $WORKDIR/ISOTMP/casper/filesystem.manifest


cp $WORKDIR/ISOTMP/casper/filesystem.manifest $WORKDIR/ISOTMP/casper/filesystem.manifest-desktop

sleep 1

# Step 5 - Prepare casper.conf depending on whether this is a backup or dist

if [ "$1" = "backup" ]; then
LIVEUSER="`grep '^[^:]*:[^:]*:1000:' /etc/passwd | awk -F ":" '{ print $1 }'`"
fi

echo "# This file should go in /etc/casper.conf" > /etc/casper.conf
echo "# Supported variables are:" >> /etc/casper.conf
echo "# USERNAME, USERFULLNAME, HOST, BUILD_SYSTEM" >> /etc/casper.conf
echo " " >> /etc/casper.conf
echo "export USERNAME="$LIVEUSER"" >> /etc/casper.conf
echo "export USERFULLNAME="Live session user"" >> /etc/casper.conf
echo "export HOST="$LIVEUSER"" >> /etc/casper.conf
echo "export BUILD_SYSTEM="Ubuntu"" >> /etc/casper.conf

cp /etc/casper.conf $WORKDIR/dummysys/etc/

sleep 1


# if the mode is dist then renumber the uid's for any user with a uid greater than 1000
# and make the passwdrestore file so the uid's are restored before the script finishes
# if this is not done, the livecd user will not be created properly

if [ "$1" = "dist" ]; then

# make sure user-setup-apply is present in case backup mode was last used

if [ -f /usr/lib/ubiquity/user-setup/user-setup-apply.orig ]; then
cp /usr/lib/ubiquity/user-setup/user-setup-apply.orig /usr/lib/ubiquity/user-setup/user-setup-apply
fi

else

# since this is backup mode, prevent user-setup-apply from running during install
if [ ! -f /usr/lib/ubiquity/user-setup/user-setup-apply.orig ]; then
mv /usr/lib/ubiquity/user-setup/user-setup-apply /usr/lib/ubiquity/user-setup/user-setup-apply.orig
fi
echo "exit 0"> /usr/lib/ubiquity/user-setup/user-setup-apply
chmod 755 /usr/lib/ubiquity/user-setup/user-setup-apply

# copy the install icon to the sudo users desktop

cp `find /usr -name ubiquity*.desktop` /home/`grep '^[^:]*:[^:]*:1000:' /etc/passwd | awk -F ":" '{ print $1 }'`/Desktop

fi


sleep 1

echo "Setting up casper and ubiquity options for $1 mode"

rm -f /usr/share/ubiquity/apt-setup
echo "#do nothing" > /usr/share/ubiquity/apt-setup
chmod 755 /usr/share/ubiquity/apt-setup

# make a new initial ramdisk including the casper scripts

mkinitramfs -o /boot/initrd.img-`uname -r` `uname -r`

echo "Copying your kernel and initrd for the livecd"
cp /boot/vmlinuz-`uname -r` $WORKDIR/ISOTMP/casper/vmlinuz
cp /boot/initrd.img-`uname -r` $WORKDIR/ISOTMP/casper/initrd.gz

# Step 6 - Make filesystem.squashfs

if [ -f $WORKDIR/remastersys.log ]; then
rm -f $WORKDIR/remastersys.log
touch $WORKDIR/remastersys.log
fi


if [ -f $WORKDIR/ISOTMP/casper/filesystem.squashfs ]; then
rm -f $WORKDIR/ISOTMP/casper/filesystem.squashfs
fi

echo "Creating filesystem.squashfs   ... this will take a while so be patient"

SQUASHFSOPTSHIGH="-no-recovery -always-use-fragments"

echo "Adding stage 1 files/folders that the livecd requires."

# add the blank folders and trimmed down /var to the cd filesystem

mksquashfs $WORKDIR/dummysys/ $WORKDIR/ISOTMP/casper/filesystem.squashfs -b 1M -no-duplicates $SQUASHFSOPTSHIGH 2>>$WORKDIR/remastersys.log

sleep 1

echo "Adding stage 2 files/folders that the livecd requires."

# add the rest of the system depending on the mode selected

if [ "$1" = "backup" ]; then
mksquashfs / $WORKDIR/ISOTMP/casper/filesystem.squashfs -b 1M -no-duplicates $SQUASHFSOPTSHIGH -e 
.thumbnails 
.cache 
.bash_history 
Cache 
boot/grub 
dev 
etc 
media 
mnt 
proc 
sys 
tmp 
var 
$WORKDIR $EXCLUDES 2>>$WORKDIR/remastersys.log

else
mksquashfs / $WORKDIR/ISOTMP/casper/filesystem.squashfs -b 1M -no-duplicates $SQUASHFSOPTSHIGH -e 
.thumbnails 
.cache 
.bash_history 
Cache 
boot/grub 
dev 
etc 
home 
media 
mnt 
proc 
sys 
tmp 
var 
$WORKDIR $EXCLUDES 2>>$WORKDIR/remastersys.log

fi

sleep 1


#add some stuff the log in case of problems so I can troubleshoot it easier
echo "------------------------------------------------------" >>$WORKDIR/remastersys.log
echo "Mount information" >>$WORKDIR/remastersys.log
mount >>$WORKDIR/remastersys.log
echo "------------------------------------------------------" >>$WORKDIR/remastersys.log
echo "Casper Script info" >>$WORKDIR/remastersys.log
ls -l /usr/share/initramfs-tools/scripts/casper-bottom/ >>$WORKDIR/remastersys.log
echo "------------------------------------------------------" >>$WORKDIR/remastersys.log
echo "/etc/remastersys.conf info" >>$WORKDIR/remastersys.log
cat /etc/remastersys.conf >>$WORKDIR/remastersys.log
echo "------------------------------------------------------" >>$WORKDIR/remastersys.log
echo "/etc/casper.conf info" >>$WORKDIR/remastersys.log
cat /etc/casper.conf >>$WORKDIR/remastersys.log
echo "------------------------------------------------------" >>$WORKDIR/remastersys.log
echo "/etc/passwd info" >>$WORKDIR/remastersys.log
cat $WORKDIR/dummysys/etc/passwd >>$WORKDIR/remastersys.log
echo "------------------------------------------------------" >>$WORKDIR/remastersys.log
echo "/etc/group info" >>$WORKDIR/remastersys.log
cat $WORKDIR/dummysys/etc/group >>$WORKDIR/remastersys.log
echo "------------------------------------------------------" >>$WORKDIR/remastersys.log
echo "Command-line options = $@" >>$WORKDIR/remastersys.log
echo "------------------------------------------------------" >>$WORKDIR/remastersys.log


# cleanup the install icons as they aren't needed on the current system

if [ "$1" = "backup" ]; then
rm -rf /home/`grep '^[^:]*:[^:]*:1000:' /etc/passwd | awk -F ":" '{ print $1 }'`/Desktop/ubiquity*.desktop
fi

sleep 1

#checking the size of the compressed filesystem to ensure it meets the iso9660 spec for a single file" 
SQUASHFSSIZE=`ls -s $WORKDIR/ISOTMP/casper/filesystem.squashfs | awk -F " " '{print $1}'`
if [ "$SQUASHFSSIZE" -gt "3999999" ]; then
echo " The compressed filesystem is larger than the iso9660 specification allows for a single file. You must try to reduce the amount of data you are backing up and try again."
echo " The compressed filesystem is larger than the iso9660 specification allows for a single file. You must try to reduce the amount of data you are backing up and try again.">>$WORKDIR/remastersys.log

exit 1
fi

#add filesystem size for lucid
echo " Calculating the installed filesystem size for the installer"
echo " Calculating the installed filesystem size for the installer">>$WORKDIR/remastersys.log

unsquashfs -lls $WORKDIR/ISOTMP/casper/filesystem.squashfs | grep -v " inodes " | grep -v "unsquashfs:" | awk '{print $3}' | grep -v "," > /tmp/size.tmp
for i in `cat /tmp/size.tmp`; do a=$(($a+$i)); done
echo $a > $WORKDIR/ISOTMP/casper/filesystem.size


}

iso (){

CREATEISO="`which mkisofs`"
if [ "$CREATEISO" = "" ]; then
CREATEISO="`which genisoimage`"
fi

# check to see if the cd filesystem exists

if [ ! -f "$WORKDIR/ISOTMP/casper/filesystem.squashfs" ]; then
echo "The cd filesystem is missing.  Either there was a problem creating the compressed filesystem or you are trying to run sudo remastersys dist iso before sudo remastersys dist cdfs"
echo "The cd filesystem is missing.  Either there was a problem creating the compressed filesystem or you are trying to run sudo remastersys dist iso before sudo remastersys dist cdfs" >>$WORKDIR/remastersys.log

exit 1
fi

#checking the size of the compressed filesystem to ensure it meets the iso9660 spec for a single file 
SQUASHFSSIZE=`ls -s $WORKDIR/ISOTMP/casper/filesystem.squashfs | awk -F " " '{print $1}'`
if [ "$SQUASHFSSIZE" -gt "3999999" ]; then
echo " The compressed filesystem is larger than the iso9660 specification allows for a single file. You must try to reduce the amount of data you are backing up and try again."
echo " The compressed filesystem is larger than the iso9660 specification allows for a single file. You must try to reduce the amount of data you are backing up and try again.">>$WORKDIR/remastersys.log

exit 1
fi

#Step 6.5 - Added by Tim Farley. Make ISO compatible with Ubuntu Startup Disk Creator (Karmic).
echo "Making disk compatible with Ubuntu Startup Disk Creator."
touch $WORKDIR/ISOTMP/ubuntu
touch $WORKDIR/ISOTMP/.disk/base_installable
echo "full_cd/single" > $WORKDIR/ISOTMP/.disk/cd_type
ARCH=`archdetect | awk -F "/" '{print $1}'`
echo $LIVECDLABEL - Release $ARCH > $WORKDIR/ISOTMP/.disk/info
echo $LIVECDURL > $WORKDIR/ISOTMP/.disk/release_notes_url

# Step 7 - Make md5sum.txt for the files on the livecd - this is used during the
# checking function of the livecd
echo "Creating md5sum.txt for the livecd/dvd"
cd $WORKDIR/ISOTMP && find . -type f -print0 | xargs -0 md5sum > md5sum.txt

#isolinux mode

# remove files that change and cause problems with checking the disk
sed -e '/isolinux/d' md5sum.txt > md5sum.txt.new
sed -e '/md5sum/d' md5sum.txt.new > md5sum.txt
rm -f md5sum.txt.new

sleep 1

# Step 8 - Make the ISO file
echo "Creating $CUSTOMISO in $WORKDIR"
$CREATEISO    
 -quiet 
 -r    
 -V "$LIVECDLABEL"    
 -cache-inodes    
 -J    
 -l    
 -b isolinux/isolinux.bin    
 -c isolinux/boot.cat    
 -no-emul-boot    
 -boot-load-size 4    
 -boot-info-table    
 -o $WORKDIR/$CUSTOMISO "$WORKDIR/ISOTMP" 2>>$WORKDIR/remastersys.log 1>>$WORKDIR/remastersys.log

# create the md5 sum file so the user doesn't have to - this is good so the iso file can later be tested to ensure it hasn't become corrupted


echo "Creating $CUSTOMISO.md5 in $WORKDIR"

cd $WORKDIR
md5sum $CUSTOMISO > $CUSTOMISO.md5

sleep 1


echo "$WORKDIR/$CUSTOMISO is ready to be burned or tested in a virtual machine."
echo " "
echo "Check the size and if it is larger than 700MB you will need to burn it to a dvd"
echo " "
ls -hs $WORKDIR/$CUSTOMISO
echo " " 
echo "It is recommended to run 'sudo remastersys clean' once you have burned and tested the $CUSTOMISO"
echo " "


}

# check to see if either iso or cdfs options have been invoked and proceed accordingly

if [ "$2" = "iso" ]; then
iso $@
elif [ "$2" = "cdfs" ]; then
cdfs $@
else
cdfs $@
iso $@
fi


exit 0