运行个复杂的，比如 gnome-session，这个是 GNOME 的启动命令，如果想打开 KDE 就是 startkde
root@carlo-cloud:~# xlogo
The program 'xlogo' is currently not installed. You can install it by typing:
apt-get install x11-apps
root@carlo-cloud:~# apt-get install x11-apps
root@carlo-cloud:~# gnome-session
The program 'gnome-session' is currently not installed. You can install it by typing:
apt-get install gnome-session-bin
sudo apt-get install gnome-shell
sudo apt-get install gnome-session-fallback
sudo apt-get install gnome-panel
sudo apt-get install gdm
sudo apt-get install xinit
sudo apt-get install kubuntu-desktop
sudo apt-get install nautilus
sudo apt-get install gnome-settings-daemon