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#Scientific Linux 5.5 LiveCD image creating script
#Written by Sean Bae
#For ISS-CREAM Project of Cosmic Ray Physics Group of University of Maryland, College Park

LIVE=/scratch/livecd
mkdir -p $LIVE
cd $LIVE
mkdir dev proc sys etc tmp
touch etc/fstab etc/mtab
mount --bind /dev dev
mount null -t proc proc
mount null -t sysfs sys
cp -a /etc/yum.conf $LIVE/etc 
cp -a /etc/yum.repos.d $LIVE/etc/
mkdir -p $LIVE/var/lock/rpm

#List of Packages
yum -c $LIVE/etc/yum.conf --installroot=$LIVE -y install yum rootfiles shadow-utils \
bind-utils gnupg vim-minimal vixie-cron crontabs passwd which kudzu dhclient \
pciutils eject mkisofs wget kernel grub

cd $LIVE
sed -i "s|\*|x|" etc/passwd
sed -i "s|^root::|root:x:|" etc/passwd
cat etc/passwd | cut -d":" -f 1 | while read u; do echo "$u:*:12345:0:99999:1:::"; done >> etc/shadow
chmod 600 etc/shadow
cp -a etc/group etc/gshadow
sed -i "s|:x:|::|" etc/gshadow
sed -i "s|:[0-9]\+:|::|" etc/gshadow
chmod 600 etc/gshadow
yum -c $LIVE/etc/yum.conf --installroot=$LIVE -y install openssh-clients
cp /etc/resolv.conf $LIVE/etc
cp /etc/sysconfig/network $LIVE/etc/sysconfig/
cp /etc/sysconfig/i18n $LIVE/etc/sysconfig/
cp /etc/sysconfig/authconfig $LIVE/etc/sysconfig/
cp /etc/sysconfig/kernel $LIVE/etc/sysconfig/
cp /etc/sysconfig/clock $LIVE/etc/sysconfig/
umount $LIVE/proc
yum -c $LIVE/etc/yum.conf --installroot=$LIVE -y install squashfs-tools aufs
mkdir $LIVE/build
cd $LIVE/build
wget www.livecd.ethz.ch/download/build/livecd-3.1.0.tar.gz
tar xfvz livecd-3.1.0.tar.gz
cd $LIVE/build/livecd-3.1.0
KERNELVERSION=$(cut -c 15-32 /proc/version)
sed "s/2.6.18-194.3.1.el5/$KERNELVERSION/" livecd.conf > livecd1.conf
rm -f livecd.conf
mv livecd1.conf livecd.conf
###Manually execute the following two lines of command###
#chroot /scratch/livecd/
#/build/livecd/livecd-3.1.0/build-livecd.sh