Rocky 9.3 - xWindow_install

yum update
yum groupinstall "GNOME Desktop" "Graphical Administration Tools"
ln -sf /lib/systemd/system/runlevel5.target /etc/systemd/system/default.target
systemctl get-default
systemctl set-default graphical.target
systemctl get-default
reboot

* nVidia 그래픽 카드의 경우 BIOS UPDATE를 해야 한다고 함.