下载CentOS-6.4-x86_64-minimal.iso
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http://mirrors.163.com/centos/6.4/isos/x86_64/CentOS-6.4-x86_64-minimal.iso
定制步骤：
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1、安装一个干净的操作系统.包括基本的系统和所需要的工具等.
比如:对于http,mysql等软件,建议使用编译的方式安装, 然后打包放进去,可以减少许多依赖包的麻烦.
2、安装系统后,收集系统已安装的软件包,使用脚本统一转存到一个目录中.
3、在安装光盘复制images镜像,从光盘启动centos安装所需的文件等.
4、定义自己的kickstart安装脚本.
5、按照之前转存的软件(rpm)包, 重新生成光盘的report信息.
6、打包生成ISO文件，及MD5效验码.
光盘结构介绍：
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* isolinux目录存放光盘启动时的安装界面信息
* images目录包括了必要的启动映像文件
* CentOS目录存放安装软件包及信息
* .discinfo文件是安装价质的识别信息
安装时默认第一项是text自动安装，也可以选择第二项进行手动安装...
安装完成后的ISO：
IP地址：192.168.7.110
root密码：nopassword
操作过程记录：
(一)挂载光盘，使用脚本拷贝相关软件包到/ISO/Packages目录下
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[root@CentOS ~]# mkdir /mnt/cdrom
[root@CentOS ~]# mount /dev/cdrom /mnt/cdrom
[root@CentOS~]# /usr/bin/rsync -a --exclude=Packages/ --exclude=repodata/ /mnt/cdrom/ /ISO/
[root@CentOS ~]# mkdir -p /ISO/{Packages,repodata}
[root@CentOS ~]# vi copy.sh
#!/bin/bash
cd /root
awk '/Installing/{print $2}' install.log | sed 's/^*://g' >package.txt
DVD='/mnt/cdrom/Packages'
PACKDIR='/root/package.txt'
NEW_DVD='/ISO/Packages'
while read LINE
do
cp ${DVD}/${LINE}*.rpm /${NEW_DVD} || echo "$LINE don't cp......."
done < package.txt
rm -f package.txt
[root@CentOS ~]# chmod +x copy.sh
[root@CentOS ~]# ./copy.sh
[root@CentOS ~]# ll /ISO/Packages/ |wc -l
285
（二）定制kickstart安装脚本ks.cfg，并修改/ISO/isolinux/isolinux.cfg文件，默认isolinux.cfg的权限为444，只能读，无法修改
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[root@CentOS ~]# cd /ISO
[root@CentOS ISO]# cp ~/anaconda-ks.cfg isolinux/ks.cfg
[root@CentOS ISO]# vi isolinux/ks.cfg
[root@CentOS ISO]# chmod 644 isolinux/isolinux.cfg
[root@CentOS ISO]# vi isolinux/isolinux.cfg
[root@CentOS ISO]# chmod 444 isolinux/isolinux.cfg
（三）安装anaconda repodata createrepo mkisofs等工具，执行createrepo程序生成repodata下的comps.xml文件
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[root@CentOS ISO]# yum -y install anaconda repodata createrepo mkisofs rsync
[root@CentOS ISO]# cp /mnt/cdrom/repodata/*-minimal-x86_64.xml /ISO/repodata/minimal-x86_64.xml
[root@CentOS ISO]# createrepo -g repodata/minimal-x86_64.xml ./
285/285 - Packages/audit-libs-2.2-2.el6.x86_64.rpm
Saving Primary metadata
Saving file lists metadata
Saving other metadata
[root@CentOS ISO]# declare -x discinfo=`head -1 .discinfo`
[root@CentOS ISO]# echo $discinfo
1341569670.539525
[root@CentOS ISO]# createrepo -u "media://$discinfo" -g repodata/minimal-x86_64.xml .
285/285 - Packages/audit-libs-2.2-2.el6.x86_64.rpm
Saving Primary metadata
Saving file lists metadata
Saving other metadata
[root@CentOS ISO]# ll repodata/
total 724
-rw-r--r--. 1 root root 266266 Jul 17 02:30 filelists.xml.gz
-rw-r--r--. 1 root root 11334 Jul 17 02:30 minimal-x86_64.xml
-rw-r--r--. 1 root root 1387 Jul 17 02:30 minimal-x86_64.xml.gz
-rw-r--r--. 1 root root 183083 Jul 17 02:30 other.xml.gz
-rw-r--r--. 1 root root 265795 Jul 17 02:30 primary.xml.gz
-rw-r--r--. 1 root root 2125 Jul 17 02:30 repomd.xml
（四）使用mkisofs命令生成ISO文件
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[root@CentOS ISO]# mkisofs -o CentOS-6.4_64.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -J -v -T /ISO/
I: -input-charset not specified, using utf-8 (detected in locale settings)
genisoimage 1.1.9 (Linux)
Scanning /ISO/
Scanning /ISO/EFI
Scanning /ISO/EFI/BOOT
Excluded: /ISO/EFI/BOOT/TRANS.TBL
Excluded: /ISO/EFI/TRANS.TBL
Scanning /ISO/repodata
Scanning /ISO/images
Excluded: /ISO/images/TRANS.TBL
Scanning /ISO/isolinux
Excluded: /ISO/isolinux/TRANS.TBL
Excluded by match: /ISO/isolinux/boot.cat
………………………………………….
98.05% done, estimate finish Tue Jul 17 02:43:01 2012
Total translation table size: 81205
Total rockridge attributes bytes: 35197
Total directory bytes: 59644
Path table size(bytes): 96
Done with: The File(s) Block(s) 203755
Writing: Ending Padblock Start Block 203836
Done with: Ending Padblock Block(s) 150
Max brk space used 65000
203986 extents written (398 MB)
（五）生成ISO文件MD5值
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[root@CentOS ISO]# /usr/bin/implantisomd5 /ISO/CentOS-6.4_64.iso
Inserting md5sum into iso image...
md5 = 1355f3a08334162777e6ad867c448d2e
Inserting fragment md5sums into iso image...
fragmd5 = a832435cd7aeb593363287aa551476c9dd21be459aada4c29e9f3475da1e
frags = 20
Setting supported flag to 0
[root@CentOS ISO]#
isolinux.cfg文件内容如下：
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default vesamenu.c32
#prompt 1
timeout 100 ###10秒钟
display boot.msg
menu background splash.jpg
menu title Welcome to use CentOS 6.4!
menu color border 0 #ffffffff #00000000
menu color sel 7 #ffffffff #ff000000
menu color title 0 #ffffffff #00000000
menu color tabmsg 0 #ffffffff #00000000
menu color unsel 0 #ffffffff #00000000
menu color hotsel 0 #ff000000 #ffffffff
menu color hotkey 7 #ffffffff #ff000000
menu color scrollbar 0 #ffffffff #00000000
label linux
menu label ^Auto Install Xlogin Linux System
menu default
kernel vmlinuz
append ks=cdrom:/isolinux/ks.cfg initrd=initrd.img ###ks文件路径
label vesa
menu label Install system with ^basic video driver
kernel vmlinuz
append initrd=initrd.img xdriver=vesa nomodeset
label rescue
menu label ^Rescue installed system
kernel vmlinuz
append initrd=initrd.img rescue
label local
menu label Boot from ^local drive
localboot 0xffff
label memtest86
menu label ^Memory test
kernel memtest
append -
以上是整个ISO的制作所有的操作过程，看起来绝对够简单吧！附件中是ks文件，希望这篇文章能够帮到你哦！
最后找个例如winscp之类的工具将ISO文件传输到本机，就可以刻盘安装了...
