Centos7 yum源更换

yum源更换

阿里云yum源

 mkdir /etc/yum.repos.d.bak
 mv /etc/yum.repos.d/* /etc/yum.repos.d.bak
 curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
 curl -o wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
 yum clean all
 yum makecache