虚拟机上使用CentOS，不想网上下载rpm，于是想本地搞个rpm的yum源，但是官方的是两个iso，于是就想合并，但是网上的教程基本上都不全，有的甚至误导，所以自己综合一下吧，记录我制作的过程。如果你要看这篇文章来制作，请看完一遍后再开始，谢谢，而且虚拟机的盘的大小稍微大一点，否则制作到一半就废了。。。
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准备：
- 在/mnt下创建三个文件夹：
mkdir -p /mnt/centos1 /mnt/centos2 /mnt/centos-
centos1：用于挂载CentOS的第一张光盘 -
centos2：用于挂载CentOS的第二张光盘 -
centos：用于存放要生成启动盘内容
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- 上传iso文件
- 这个方式太多，我用的是SecureCRT自带的SFTP，速度比较快
- 在/mnt下创建三个文件夹：
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挂载 Centos 镜像文件，注意：根据自己iso位置
mount -o loop ./CentOS-6.10-x86_64-bin-DVD1.iso /mnt/centos1 mount -o loop ./CentOS-6.10-x86_64-bin-DVD2.iso /mnt/centos2 -
拷贝文件
- 首先, 拷贝
CentOS-6.10-x86_64-bin-DVD1.iso中的所有文件到/mnt/centos目录下 - 拷贝
CentOS-6.10-x86_64-bin-DVD2.iso中 Packages 目录下的所有RPM文件到 /mnt/centos/Packages 目录下：cp -rv /mnt/centos1/. /mnt/centos/ cp -v /mnt/centos2/Packages/*.rpm /mnt/centos/Packages/-
注意：使用
.，而不是*，因为第一张光盘中有两个隐藏文件，我们平常的拷贝会胡烈隐藏文件
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注意：使用
- 首先, 拷贝
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合并TRANS.TBL
- 将centos2中TRANS.TBL的信息追加到centos1中TRANS.TBL后面, 并排序保存
cat /mnt/centos2/Packages/TRANS.TBL >> /mnt/centos/Packages/TRANS.TBL mv /mnt/centos/Packages/{TRANS.TBL,TRANS.TBL.BAK} sort /mnt/centos/Packages/TRANS.TBL.BAK > /mnt/centos/Packages/TRANS.TBL rm -f /mnt/centos/Packages/TRANS.TBL.BAK -
/mnt/centos中的内容已经是合并后的内容了，即可以用作本地源和做成ISO使用。
- 将centos2中TRANS.TBL的信息追加到centos1中TRANS.TBL后面, 并排序保存
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更新Yum列表
cd /etc/yum.repos.d rename .repo .repo.bak *.repo cp CentOS-Media.repo.bak CentOS-ISO.repo vi CentOS-ISO.repo- 参考内容：
[c6-iso] name=CentOS-ISO baseurl=file:///mnt/centos gpgcheck=0 enabled=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
yum clean all - 参考内容：
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安装依赖包
yum install -y createrepo yum install -y isomd5sum yum install -y genisoimage*- 注意这个命令需要自己找一下机型对应的安装包：
yum whatprovides mkisofs，然后根据搜索结果进行安装
- 注意这个命令需要自己找一下机型对应的安装包：
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借助mkdvdiso.sh制作可启动ISO：
#!/bin/bash # by Chris Kloiber <ckloiber@redhat.com> # Mods under CentOS by Phil Schaffner <pschaff2@verizon.net> # 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. OS_VER=\ $((test -e /etc/fedora-release && rpm -qf /etc/fedora-release --qf "FC%{VERSION}") \ || (test -e /etc/redhat-release && rpm -qf /etc/redhat-release --qf "EL%{VERSION}") \ || echo OS_unknown) case "$OS_VER" in EL[45]*|FC?) IMPLANT=/usr/lib/anaconda-runtime/implantisomd5 if [ ! -f $IMPLANT ]; then echo "Error: $IMPLANT Not Found!" echo "Please install anaconda-runtime and try again." exit 1 fi ;; EL6*|FC1?) IMPLANT=/usr/bin/implantisomd5 if [ ! -f $IMPLANT ]; then echo "Error: $IMPLANT Not Found!" echo "Please install isomd5sum and try again." exit 1 fi ;; OS_unknown) echo "Unknown OS." exit 1 ;; *) echo "Fix this script for $OS_VER" exit 1 esac 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 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..." # $IMPLANT --force $2 # Don't like forced mediacheck? Try this instead. $IMPLANT --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 -
添加执行权限
chmod u+x ./mkdvdiso.sh -
开始制作：
./mkdvdiso.sh /mnt/centos /root/CentOS-6.10-x86_64-bin-DVD-Everything.iso- 执行最后的内容：
Total translation table size: 1689614 Total rockridge attributes bytes: 743397 Total directory bytes: 1122430 Path table size(bytes): 112 Done with: The File(s) Block(s) 3037927 Writing: Ending Padblock Start Block 3038884 Done with: Ending Padblock Block(s) 150 Max brk space used 6d3000 3039034 extents written (5935 MB) Image complete, create md5sum... Inserting md5sum into iso image... md5 = ce84ea6fef4bf7cc2562c2fde851837d Inserting fragment md5sums into iso image... fragmd5 = c184edd1d8aa25e682503338b127e4665da5eea9e223943214b813f5e348 frags = 20 Setting supported flag to 1 Start cleanup... Process Complete! Wrote DVD ISO image to /root/CentOS-6.10-x86_64-bin-DVD-Everything.iso
- 执行最后的内容：
