我有來插花一下   國外看到的
#/bin/bash
# by Chris Kloiber <
ckloiber@redhat.com>
# 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.
##Roll your own DVD isos using my script. Get the latest CD isos into one directory, then run:
# mkdvdiso.sh /path/to/the/cd/isos /location/and/name/of/dvd.iso
# growisofs -Z /dev/scd0=/location/and/name/of/dvd.iso
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..."
       rsync -avP --exclude SRPMS $1/* $DVD
#       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
# My thanks to Mubashir Cheema for suggesting this fix.
# cd $DVD
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
/usr/lib/anaconda-runtime/implantisomd5 --force $2
# Don't like forced mediacheck? Try this instead.
# /usr/lib/anaconda-runtime/implantisomd5 --supported-iso --force $2
cleanup
echo ""
echo "Process Complete!"
echo ""