好处：少占用3G左右空间
坏处：umount了 要重新mount iso到mnt目录
当然你也可以把iso里面的东西拷到系统目录下面，再创建repo，再删除iso文件，我就是比较懒
1.把安装盘iso 挂载到mnt目录
mount -t loop /root/rhel-server-5.8-x86_64-dvd.iso /mnt
2.创建存储repoxml的目录
mkdir /yum
3.安装createrepo rpm包
rpm -ivh /mnt/Server/createrepo-0.4.11-3.el5.noarch.rpm
4.生成repo 相应文件
createrepo -o /yum/ -u /mnt/ /mnt/
3414/3414 - VT/xen-devel-3.0.3-135.el5.x86_64.rpm pm6_64.rpm
Saving Primary metadata
Saving file lists metadata
Saving other metadata
5.修改yum repo配置文件，添加
[rhel]
name=Red Hat Enterprise Linux $releasever - $basearch - Debug
baseurl=file:///yum
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
6.yum clean all 后yum list
[root@node1 yum.repos.d]# yum list|more
Loaded plugins: katello, product-id, security, subscription-manager
Updating certificate-based repositories.
Unable to read consumer identity
Installed Packages
Deployment_Guide-en-US.noarch 5.8-1.el5 installed
Deployment_Guide-zh-CN.noarch 5.8-1.el5 installed
Deployment_Guide-zh-TW.noarch 5.8-1.el5 installed
GConf2.i386 2.14.0-9.el5 installed
GConf2.x86_64 2.14.0-9.el5 installed
GConf2-devel.x86_64 2.14.0-9.el5 installed
ImageMagick.i386 6.2.8.0-12.el5 installed
ImageMagick.x86_64 6.2.8.0-12.el5 installed
MAKEDEV.x86_64 3.23-1.2 installed
NetworkManager.i386 1:0.7.0-13.el5 installed
NetworkManager.x86_64 1:0.7.0-13.el5 installed
NetworkManager-glib.i386 1:0.7.0-13.el5 installed
NetworkManager-glib.x86_64 1:0.7.0-13.el5 installed
NetworkManager-gnome.x86_64 1:0.7.0-13.el5 installed
ORBit2.i386 2.14.3-5.el5 installed
ORBit2.x86_64 2.14.3-5.el5 installed
ORBit2-devel.x86_64 2.14.3-5.el5 installed
OpenIPMI.x86_64 2.0.16-12.el5 installed
OpenIPMI-libs.x86_64 2.0.16-12.el5 installed
OpenIPMI-tools.x86_64 2.0.16-12.el5 installed
PyQt.x86_64 3.16-4 installed
PyXML.x86_64 0.8.4-6.el5 installed
SysVinit.x86_64 2.86-17.el5 installed
