博客

备份原有的yum源

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

下载阿里的yum源

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
或者
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo

清除系统所有的yum缓存

yum clean all

生成yum缓存

yum makecache

epel源安装和配置

查看可用的epel源

yum list | grep epel-release

安装 epel

yum install -y epel-release

配置阿里镜像提供的epel源

wget -O /etc/yum.repos.d/epel-7.repo  http://mirrors.aliyun.com/repo/epel-7.repo

清除系统所有的yum缓存

yum clean all

生成yum缓存

yum makecache

查看所有的yum源

yum repolist all

查看可用的yum源

yum repolist enabled