centos8换下载源
bash
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo
sed -i -e"s|mirrors.cloud.aliyuncs.com|mirrors.aliyun.com|g " /etc/yum.repos.d/CentOS-*
sed -i -e "s|releasever|releasever-stream|g" /etc/yum.repos.d/CentOS-*
yum clean all && yum makecache