多个centos安装cd合成一个dvd

CDtoDVDMedia

The following script (mkdvdiso.sh) has been tested for CentOS 4 and 5 i386 to create DVD ISO images from CD images, or from an installation tree. If the installation tree does not contain a .discinfo file, one must be obtained from the top level of a CD.

Usage: mkdvdiso.sh source /destination/DVD.iso

* The 'source' can be either a directory containing a single set of isos, or an exploded tree like an ftp site.

#!/bin/bash

# by Chris Kloiber
# Mods under CentOS by Phil Schaffner

# 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.

# Modified to add sanity checks and fix CentOS4 syntax errors

# TODO:
# Add checks for available disk space on devices holding output and
# temp files.
# Add optional 3rd parameter to specify location of temp directory.
# Create .discinfo if not present.

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

if [ ! -f /usr/lib/anaconda-runtime/implantisomd5 ]; then
echo "Error: /usr/lib/anaconda-runtime/implantisomd5 Not Found!"
echo "Please install anaconda-runtime and try again."
exit 1
fi

DVD_DIR=`dirname $2`
DVD_FILE=`basename $2`

echo "DVD directory is $DVD_DIR"
echo "ISO file is $DVD_FILE"

if [ "$DVD_DIR" = "." ]; then
echo "Destinaton Directory $DVD_DIR does not exist"
exit 1
else
if [ ! -d "/$DVD_DIR" ]; then
echo "Destinaton Directory $DVD_DIR must be an absolute path"
exit 1
else
if [ "$DVD_FILE" = "" ] || [ -d "$DVD_DIR/$DVD_FILE" ]; then
echo "Null ISO file name."
exit 1
fi
fi
fi

which mkisofs >&/dev/null
if [ "$?" != 0 ]; then
echo "mkisofs Not Found"
echo "yum install mkisofs"
fi

which createrepo >&/dev/null
if [ "$?" != 0 ]; then
echo "createrepo Not Found"
echo "yum install createrepo"
fi

if [ -f $2 ]; then
echo "DVD ISO destination $2 already exists. Remove first to recreate."
exit 1
fi

# Make sure there is enough free space to hold the DVD image on the filesystem
# where the home directory resides, otherwise change ~/mkrhdvd to point to
# a filesystem with sufficient free space.

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

ls $1/*.iso &>/dev/null
if [ "$?" = 0 ]; then

echo "Found ISO CD images..."

CDS=`expr 0`
DISKS="1"

[ -w / ] || { # Very portable, but perhaps not perfect, test for superuser.
echo "Only 'root' may use this script for loopback mounts" 1>&2
exit 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
else
if [ -f $1/isolinux/isolinux.bin ]; then

echo "Found FTP-like tree..."

if [ -e $1/.discinfo ]; then
cp -av $1/.discinfo $DVD
else
# How does one construct a legal .discinfo file if none is found?
echo "Error: No .discinfo file found in $1"
cleanup
exit 1
fi
cp -av $1/* $DVD
else
echo "Error: No CD images nor FTP-like tree found in $1"
cleanup
exit 1
fi
fi

if [ -e $DVD/.discinfo ]; then
awk '{ if ( NR == 4 ) { print disks } else { print ; } }' disks="ALL" $DVD/.discinfo > $DVD/.discinfo.new
mv $DVD/.discinfo.new $DVD/.discinfo
else
echo "Error: No .discinfo file found in $DVD"
cleanup
exit 1
fi

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

cd $DVD
createrepo -g repodata/comps.xml ./
mkisofs -J -R -v -T -o $2 -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 8 -boot-info-table $DVD
if [ "$?" = 0 ]; then

echo ""
echo "Image complete, create md5sum..."

# /usr/lib/anaconda-runtime/implantisomd5 --force $2
# Don't like forced mediacheck? Try this instead.
/usr/lib/anaconda-runtime/implantisomd5 --supported-iso --force $2

echo "Start cleanup..."

cleanup

echo ""
echo "Process Complete!"
echo "Wrote DVD ISO image to $DVD_DIR/$DVD_FILE"
echo ""
else
echo "ERROR: Image creation failed, start cleanup..."

cleanup

echo ""
echo "Failed to create ISO image $DVD_DIR/$DVD_FILE"
echo ""
fi