开发环境——RHEL7更换yum源

一、删除RHN注册和订阅提示

查找subscription-manager相关组件:

rpm -qa|grep subscription-manager删除subscription-manager相关组件：sudo yum remove subscription-manager查找rhn相关组件:rpm -qa|grep rhn删除rhn相关组件:sudo yum remove rhn-check

二、yum安装

1、yum卸载

查询当前RHEL7.3的yum安装包：

rpm -qa |grep yum强制删除当前yum：sudo rpm -qa|grep yum|xargs rpm -e --nodeps再次查询yum是否删除：rpm -qa |grep yum

2、更新rpm

由于最新的yum安装包依赖rpm-4.11.3-32.el7.x86_64.rpm，所以必须升级rpm到rpm-4.11.3-32.el7.x86_64.rpm

在http://mirrors.163.com/centos/7/os/x86_64/Packages/ 下载如下rpm安装包：

rpm-4.11.3-32.el7.x86_64.rpmrpm-build-4.11.3-32.el7.x86_64.rpmrpm-build-libs-4.11.3-32.el7.x86_64.rpmrpm-libs-4.11.3-32.el7.x86_64.rpmrpm-devel-4.11.3-32.el7.x86_64.rpm

强制安装所有的rpm安装包：

sudo rpm -ivh rpm-* --force

3、安装yum

在http://mirrors.163.com/centos/7/os/x86_64/Packages/ 下载如下yum安装包：

yum-3.4.3-158.el7.centos.noarch.rpmyum-utils-1.1.31-45.el7.noarch.rpmyum-metadata-parser-1.1.4-10.el7.x86_64.rpmpython-urlgrabber-3.10-8.el7.noarch.rpmyum-updateonboot-1.1.31-45.el7.noarch.rpmyum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm

安装：

sudo rpm -ivh python-urlgrabber-3.10-8.el7.noarch.rpm sudo rpm -ivh yum-*

安装成功，查询yum版本

yum --version

4、更新yum源为阿里云源

下载源仓库文件：

sudo wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo将CentOS-Base.repo文件中的$releasever全部替换为版本号7更新仓库：

yum clean allyum makecachesudo yum update