redhat6更改centos yum源

用cat  /proc/version查看的Linux版本：1.2.6.32-71.el6.i686 ([email protected]) (gcc version 4.4.4 20100726 (Red Hat 4.4.4-13) (GCC) ) #1 SMP Wed Sep 1 01:26:34 EDT 2010  ，32位系统。

1.用rpm -aq|grep yum|xargs rpm -e --nodeps 删除原有yum

2.wget下载四个包

wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-14.1.el6.x86_64.rpm 

wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.26-11.el6.noarch.rpm 

wget http://mirrors.163.com/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm 

wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-30.el6.noarch.rpm

注：因为是32位系统，所有x86_64替换为i386，包名也替换为相应的

    3先安装python-iniparse-0.3.1-2.1.el6.noarch.rpm 再安装yum-metadata-parser-1.1.2-14.1.el6.x86_64.rpm 然后

yum-3.2.29-30.el6.noarch.rpm和yum-plugin-fastestmirror-1.1.26-11.el6.noarch.rpm同时安装

如rpm -ivh yum-3.2.29-30.el6.noarch.rpm yum-plugin-fastestmirror-1.1.26-11.el6.noarch.rpm

4下载163yum源wget http://mirrors.163.com/.help/wget http://mirrors.163.com/.help/CentOS6-Base-163.repo，此步骤下载的

文件保存到当前目录下了。然后拷贝该文件到/etc/yum.repos.d/下

5vim打开CentOS6-Base-163.repo替换$releasever位版本号6命令为：%s/$releasever/6/g(注意冒号后无空格)保存退出

6清理yum缓存

#yum clean all

将服务器软件包信息缓存至本地，提高搜索安装效率

#yum makecache（完）