rhel7和centos7安装163 yum源 && 顺便安装epel yum源

1、首先删除原有的yum 。
rpm -qa | grep yum | xargs rpm -e --nodeps
rpm -qa | grep python-iniparse | xargs rpm -e --nodeps

2、下载163的yum 安装包
http://vault.centos.org/7.2.1511/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm
http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-3.4.3-132.el7.centos.0.1.noarch.rpm
http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpm

3、安装下载的rpm包
rpm -ivh yum-metadata-parser-1.1.4-10.el7.x86_64.rpm yum-3.4.3-132.el7.centos.0.1.noarch.rpm yum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpm python-iniparse-0.4-9.el7.noarch.rpm

5.下载163repo配置文件
wget http://mirrors.163.com/.help/CentOS7-Base-163.repo

6.修改配置文件
将CentOS7-Base-163.repo文件拷贝致/etc/yum.repos.d
将CentOS7-Base-163.repo字段$releasever替换为7.
vi /etc/yum.repos.d/CentOS7-Base-163.repo
输入:s/$releasever/7/g，然后：wq保存

7、yum clean all && yum makecache

8、安装epel yum源
yum install -y epel-release