配置Centos7.6 yum镜像源

阿里云官网

1. 备份

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

2. 获取镜像仓库

curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

3. 清除缓存

yum clean all
yum makecache