Redhat 5使用contos yum源（保证可以实现）

窝窝插件

　　Redhat 5使用contos yum源
　　首先我们通过rpm -qa | grep yum看一下目前的的RHEL上面的YUM的安装包
　　删除如下三个包，其它的可不用理，事实上理了会出现相关问题
　　rpm -e yum-updatesd-3.0.1-5.el5
rpm -e yum-rhn-plugin-0.4.3-1.el5
rpm -e yum-3.0.1-5.el5
　　删除了以后下载centos的源安装包，如下：
　　wget http://centos.ustc.edu.cn/centos/5/os/i386/CentOS/yum-3.2.22-26.el5.centos.noarch.rpm
　　（第一个包可能下载会报错。自己在其他网站下载吧。下面三个都没有问题的）
　　wget http://centos.ustc.edu.cn/centos/5/os/i386/CentOS/yum-metadata-parser-1.1.2-3.el5.centos.i386.rpm
wget http://centos.ustc.edu.cn/centos/5/os/i386/CentOS/yum-fastestmirror-1.1.16-14.el5.centos.1.noarch.rpm
wget http://centos.ustc.edu.cn/centos/5/os/i386/CentOS/python-iniparse-0.2.3-4.el5.noarch.rpm
　　
　　通过rpm -ivh 安装以上四个包文件，完成以后
　　touch /etc/yum.repos.d/Centos-Base.repo
　　vim /etc/yum.repos.d/Centos-Base.repo
　　以下是上海交大的yum源：（保证可以实现哦）
[base]

name=CentOS-5 - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever5&arch=$basearch&
repo=os
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
baseurl=http://ftp.sjtu.edu.cn/centos/5.5/os/$basearch/
gpgcheck=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#released updates
[update]
name=CentOS-5 - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=updates
baseurl=http://ftp.sjtu.edu.cn/centos/5.5/updates/$basearch/
gpgcheck=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#packages used/produced in the build but not released
[addons]
name=CentOS-5 - Addons
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=addons

baseurl=http://ftp.sjtu.edu.cn/centos/5.5/addons/$basearch/
gpgcheck=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#additional packages that may be useful
[extras]
name=CentOS-5 - Extras
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=extras

baseurl=http://ftp.sjtu.edu.cn/centos/5.5/extras/$basearch/
gpgcheck=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-5 - Plus
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=centosplus
baseurl=http://ftp.sjtu.edu.cn/centos/5.5/centosplus/$basearch/
gpgcheck=0
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#contrib - packages by Centos Users
[contrib]
name=CentOS-5 - Contrib
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=contrib
baseurl=http://ftp.sjtu.edu.cn/centos/5.5/contrib/$basearch/
gpgcheck=0
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

　　完成以后运行yum update