yum换源

备份

cd /etc/yum.repos.d
Centos-Base.repo Centos-Base.repo.bak

下载阿里源

wget -O Centos-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

缓存

yum makecache

更新

yum -y install update

标签：Centos,mirrors,repo,Base,yum,换源
来源： https://www.cnblogs.com/theodoric008/p/16651190.html