red hat替换centos yum源

jydg

　　1.删除redhat原有的yum
　　rpm -aq|grep yum|xargs rpm -e --nodeps
　　2.下载yum安装文件
　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-[3.2.27-14.el6].centos.noarch.rpm
　　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
　　3.进行安装yum
　　rpm -ivh --nodeps python-iniparse-[0.3.1-2.1.el6].noarch.rpm
　　rpm -ivh --nodeps yum-metadata-parser-[1.1.2-14.1.el6.x86_64].rpm
　　rpm -ivh --nodeps yum-[3.2.27-14.el6].centos.noarch.rpm
　　rpm -ivh --nodeps yum-plugin-fastestmirror-[1.1.26-11.el6].noarch.rpm
　　#注：【】表示变化内容，具体版本根据镜像源内容进行替换
　　4.更新repo文件
　　mv /etc/yum.repos.d/rhel-source.repo   /etc/yum.repos.d/rhel-source.repo.bak
　　vi /etc/yum.repos.d/CentOS-Base.repo
　　内容为：

[base]

　　name=CentOS-$releasever - Base
　　baseurl=http://mirrors.163.com/centos/6/os/$basearch/
　　gpgcheck=1
　　gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
　　#released updates

[updates]

　　name=CentOS-$releasever - Updates
　　baseurl=http://mirrors.163.com/centos/6/updates/$basearch/
　　gpgcheck=1
　　gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6

　　#packages used/produced in the build but not>　　#[addons]
　　#name=CentOS-$releasever - Addons
　　#baseurl=http://mirrors.163.com/centos/$releasever/addons/$basearch/
　　#gpgcheck=1
　　#gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
　　#additional packages that may be useful

[extras]

　　name=CentOS-$releasever - Extras
　　baseurl=http://mirrors.163.com/centos/6/extras/$basearch/
　　gpgcheck=1
　　gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
　　#additional packages that extend functionality of existing packages

[centosplus]

　　name=CentOS-$releasever - Plus
　　baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/
　　gpgcheck=1
　　enabled=0
　　5.
　　yum clean all
　　yum install vim #测试一下可不可以用
　　---------------------------------------------------------
　　安装EPEL源
　　1.https://fedoraproject.org/wiki/EPEL/zh-cn

　　进去之后下载epel-release-6-8.noarch

　　2.安装epel
　　rpm -ivh epel-release-6-8.noarch.rpm
　　3.执行  yum clean all  清理yum缓存
　　4. 执行       yum repolist

　　上面可以看到EPEL源已经成功添加到源列表中去了，并且显示已经提供了上万个软件包！
　　如果出现这样的错误：
　　Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again
　　编辑：vi /etc/yum.repos.d/epel.repo  将baseurl启用，mirrorlist注释
　　如下：
　　baseurl=http://download.fedoraproject.org/pub/epel/6/$basearch
　　#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
　　再执行       yum repolist
　　…… OK!……