Redhat 4（光驱生成ISO）

第一步：先准备一个较大的硬盘空间，大约4.5G，有条件最好大一点；

第二步：建立一个目录，存放CD的ISO文件；

mkdir /mnt/iso

第三步：制作CD的ISO文件；

分别将RedHatEL4的四张光盘，放入光驱，进行光盘镜像，制作ISO格式文件；
dd if=/dev/hdc of=/mnt/iso/disk1.iso

dd if=/dev/hdc of=/mnt/iso/disk2.iso

dd if=/dev/hdc of=/mnt/iso/disk3.iso

dd if=/dev/hdc of=/mnt/iso/disk4.iso

第四步：建立目录，以便mount刚才的镜像文件；
mkdir /mnt/el4_iso

mkdir /mnt/el4_iso/disk{1,2,3,4} /mnt/el4_iso/docs

第五步:挂载上面制作的ISO文件
mount -o loop /mnt/iso/disk1.iso /mnt/el4_iso/disk1

mount -o loop /mnt/iso/disk2.iso /mnt/el4_iso/disk2

mount -o loop /mnt/iso/disk3.iso /mnt/el4_iso/disk3

mount -o loop /mnt/iso/disk4.iso /mnt/el4_iso/disk4

第五步：拷贝isolinux及.discinfo文件；
cd /mnt/el4_iso

cp -av disk1/isolinux disk1/.discinfo ./

第六步：编辑.discinfo文件，将第4行的1换成1,2,3,4，以表示要用这四4个ISO文件；

第七步：制作DVD的ISO文件；
mkisofs -o dvd.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot

-boot-load-size 4 -boot-info-table -R -m TRANS.TBL -x disk1/.discinfo -x disk1/isolinux

-graft-points disk1 .discinfo=.discinfo isolinux/=isolinux RedHat/=disk2/RedHat

RedHat/=disk3/RedHat RedHat/=disk4/RedHat docs/=docs/
mkisofs -o dvd.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -m TRANS.TBL -x disk1/.discinfo -x disk1/isolinux -graft-points disk1 .discinfo=.discinfo isolinux/=isolinux RedHat/=disk2/RedHat RedHat/=disk3/RedHat RedHat/=disk4/RedHat docs/=docs/

OK，到此为止，已经成功将4张CD制作成一张DVD了！将其刻录到DVD盘上，以后安装RedHat就不用做那令人厌烦的换盘的事情 了！
如果想把extra那张盘上的程序包制作到DVD中，可以把Extras这张盘mount到disk5目录下，mkisofs命令中加入 -x disk5/RedHat/base RedHat=cd5/RedHat/

Redhat 5（mount镜像）

mkdir disk{1,2,3,4,5}
mkdir docs
mount -o loop rhel-5-server-i386-disc1.iso disk1/
mount -o loop rhel-5-server-i386-disc2.iso disk2/
mount -o loop rhel-5-server-i386-disc3.iso disk3/
mount -o loop rhel-5-server-i386-disc4.iso disk4/
mount -o loop rhel-5-server-i386-disc5.iso disk5/
cp -av disk1/isolinuxdisk1/.discinfo ./
vi .discinfo
#将第4行的1改为1，2，3，4，5
mkisofs -o RHEL5dvd.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 5 -boot-info-table -R -m TRANS.TBL -x disk1/.discinfo -x disk1/isolinux -graft-points disk1 .discinfo=.discinfo isolinux/=isolinux Server/=disk2/Server/ Server/=disk3/Server/ Server/=disk4/Server/ Server/=disk5/Server/ Cluster/=disk5/Cluster ClusterStorage/=disk5/ClusterStorage/ VT/=disk5/VT/ docs/=docs/

如何通过media test
生成dvdiso镜像后, 运行/usr/sbin/implantisomd5 --force RHEL5dvd.iso, 就可以通过media test了.

另, 如果系统没有implantisomd5, 可以从http://www.rocklinux.net/sources/misc/isomd5sum/下 载源码,
先make, 然后 mv implantisomd5 checkisomd5 /usr/sbin.

注意事项：
可能会出现如下错误
Using BOOT000.CAT;1 for isolinux/boot.cat (boot.cat)
mkisofs: Error: '(NULL POINTER)' and 'isolinux/boot.cat' have the same Rock Ridge name 'boot.cat'.
mkisofs: Unable to sort directory isolinux

删除boot.cat文件
cd isolinux
rm boot.cat

改进制作的iso镜像
按以上方法制作的镜像文件在windows下直接读取的话文件名全部遵循iso09660规范，而且没有加入Joliet文件系统，给我们的使用带来了很大的不方便。添加J、D、U、T参数后，除了光盘的名称为默认的”CDROM“外，基本和Redhat官方的DVD iso格式一致。

mkisofs -o dvd.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -JRDUT -m TRANS.TBL -x disk1/.discinfo -x disk1/isolinux -graft-points disk1 .discinfo=.discinfo isolinux/=isolinux RedHat/=disk2/RedHat RedHat/=disk3/RedHat RedHat/=disk4/RedHat

-J 创建Joliet文件系统（windows）

-R 创建Rock Ridge文件系统（unix/linux，保留权限信息）

-r This is like the -R option, but file ownership and modes are
set to more useful values. The uid and gid are set to zero,
because they are usually only useful on the author’s system,
and not useful to the client. All the file read bits are set
true, so that files and directories are globally readable on
the client. If any execute bit is set for a file, set all of
the execute bits, so that executables are globally executable
on the client. If any search bit is set for a directory, set
all of the search bits, so that directories are globally
searchable on the client. All write bits are cleared, because
the CD-Rom will be mounted read-only in any case. If any of
the special mode bits are set, clear them, because file locks
are not useful on a read-only file system, and set-id bits are
not desirable for uid 0 or gid 0. When used on Win32, the exe-
cute bit is set on all files. This is a result of the lack of
file permissions on Win32 and the Cygwin POSIX emulation layer.
See also -uid -gid, -dir-mode, -file-mode and -new-dir-mode.

-D 彻底隐藏rr_moved目录 -disable-deep-relocation Disable deep directory relocation (violates ISO9660)

-U 不转换文件名 -untranslated-filenames Allow Untranslated filenames (for HPUX & AIX - violates ISO9660). Forces -l, -d, -N, -allow-leading-dots, -relaxed-filenames, -allow-lowercase, -allow-multidot

-T 产生TRANS.TBL文件 Generate translation tables for systems that don't understand long filenames

-graft-points
Allow to use graft points for filenames. If this option is used, all filenames are checked for graft points. The filename is divided at the first unescaped equal sign. All occurrences of ’\\’ and ’=’ characters must be escaped with
’\\’ if -graft-points has been specified.

按钮拖动效果今天做的最终版