1、centos7.4安装图形界面
yum check-update && yum install epel-release && yum groupinstall "GNOME Desktop" "Graphical Administration Tools" && yum groups mark convert && ln -sf /lib/systemd/system/runlevel5.target /etc/systemd/system/default.target && init 5 && rebootyum check-update && yum inst
