Centos7 최소설치에서 그놈설치하는 방법입니다.

# yum groupinstall "X Window System"

#  yum install gnome-classic-session gnome-terminal nautilus-open-terminal control-center liberation-mono-fonts

# unlink /etc/systemd/system/default.target

# ln -sf /lib/systemd/system/graphical.target /etc/systemd/system/default.target

# reboot