Creating a RHEL bootable DVD ISO with script code at the last...

Creating a RHEL bootable DVD ISO
As of this writing, the current RHEL release (4) is only available on CDs, not DVD. It is possible to create a bootable DVD ISO from these CDs using Chris Kloiber's mkdvdiso.sh script.

1. Download mkdvdiso.sh.
http://mirror.centos.org/centos/build/mkdvdiso.sh

2. Install the anaconda-runtime prerequisite package and its dependencies.
# rpm -q anaconda-runtime || yum -y install anaconda-runtime

3. Place the CD ISO files and mkdvdiso.sh in a directory, and run the mkdvdiso.sh script.
# ls -1
mkdvdiso.sh
RHEL4-U4-i386-AS-disc1.iso
RHEL4-U4-i386-AS-disc2.iso
RHEL4-U4-i386-AS-disc3.iso
RHEL4-U4-i386-AS-disc4.iso
RHEL4-U4-i386-AS-disc5.iso

The following command creates a RHEL bootable DVD ISO named RHEL-U4-i386-AS-dvd.iso.
# ./mkdvdiso.sh . $(pwd)/RHEL-U4-i386-AS-dvd.iso

______________________________________________
### Many many thanks to Chris Kloiber
##source of mkdvdiso.sh
###
#!/bin/bash

# by Chris Kloiber

# A quick hack that will create a bootable DVD iso of a Red Hat Linux
# Distribution. Feed it either a directory containing the downloaded
# iso files of a distribution, or point it at a directory containing
# the "RedHat", "isolinux", and "images" directories.

# This version only works with "isolinux" based Red Hat Linux versions.

# Lots of disk space required to work, 3X the distribution size at least.

# GPL version 2 applies. No warranties, yadda, yadda. Have fun.


if [ $# -lt 2 ]; then
echo "Usage: `basename $0` source /destination/DVD.iso"
echo ""
echo " The 'source' can be either a directory containing a single"
echo " set of isos, or an exploded tree like an ftp site."
exit 1
fi

cleanup() {
[ ${LOOP:=/tmp/loop} = "/" ] && echo "LOOP mount point = \/, dying!" && exit
[ -d $LOOP ] && rm -rf $LOOP
[ ${DVD:=~/mkrhdvd} = "/" ] && echo "DVD data location is \/, dying!" && exit
[ -d $DVD ] && rm -rf $DVD
}

cleanup
mkdir -p $LOOP
mkdir -p $DVD

if [ !`ls $1/*.iso 2>&1>/dev/null ; echo $?` ]; then
echo "Found ISO CD images..."
CDS=`expr 0`
DISKS="1"

for f in `ls $1/*.iso`; do
mount -o loop $f $LOOP
cp -av $LOOP/* $DVD
if [ -f $LOOP/.discinfo ]; then
cp -av $LOOP/.discinfo $DVD
CDS=`expr $CDS + 1`
if [ $CDS != 1 ] ; then
DISKS=`echo ${DISKS},${CDS}`
fi
fi
umount $LOOP
done
if [ -e $DVD/.discinfo ]; then
awk '{ if ( NR == 4 ) { print disks } else { print ; } }' disks="$DISKS" $DVD/.discinfo > $DVD/.discinfo.new
mv $DVD/.discinfo.new $DVD/.discinfo
fi
else
echo "Found FTP-like tree..."
cp -av $1/* $DVD
[ -e $1/.discinfo ] && cp -av $1/.discinfo $DVD
fi

rm -rf $DVD/isolinux/boot.cat
find $DVD -name TRANS.TBL | xargs rm -f

cd $DVD
mkisofs -J -R -v -T -o $2 -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table .
/usr/lib/anaconda-runtime/implantisomd5 --force $2

cleanup
echo ""
echo "Process Complete!"
echo ""