First, install the GNOME desktop
1, the installation command: yum groupinstall "GNOME Desktop" -y // install command CentOS6 is: yum groupinstall "X Window System" "Desktop Platform" Desktop
2, after the installation, restart the system will come out following interface:
Press "1" and press Enter
Press "2", Enter
Press the "q", carriage return
Press "yes", press Enter to enter the system
3, into the system, you need to set the desktop as your default startup setting command: systemctl set-default graphical.target
Second, install a KDE desktop
1, the install command: yum groupinstall "KDE Plasma Workspaces" // CentOS installation method 6: yum groupinstall "X Window System" "KDE Desktop" Desktop
Other operations above ......