Centos 7 更换yum源

Centos 7 更换源

1 yum clean all
2 
3 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo 或者
4 
5 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo
6 
7 yum makecache
8 
9 yum update -y