Installign ICEWM on Ubuntu Server
IceWM is a window manager for the X Window System (freedesktop, XFree86). The goal of IceWM is speed, simplicity.
Login to your ubuntu system.
Also install xinit - X server initilization tool
Ubuntu desktop will already have the X windows system install.
If you would like to install gnome-terminal and xterm then run the following command.
Run the command below to satrt icewm
Now icewm desktop should be up and running.