CentOS7 配置阿里云yum源

备份旧的 yum 源mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup 下载阿里云 repowget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo清除缓存yum clean...