CentOS 8 64bit一键更新YUM源命令如下:
sudo sed -i 's|^mirrorlist=|#mirrorlist=|' /etc/yum.repos.d/CentOS-* && sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|' /etc/yum.repos.d/CentOS-* && sudo dnf clean all && sudo yum -y update && sudo yum -y upgrade && reboot