Installing fluxbox is really quite simple. First you will want to make sure that you’ve enabled the universe repository.
To install Fluxbox, open up a terminal window and type in the following command:
You will be prompted for your password, and the installation will continue. Once you are done installing, you will need to exit XWindows by using Ctrl+Alt+Backspace or just rebooting the computer.
At the Ubuntu Login prompt, click the Options button in the bottom left hand corner:
You will be prompted to choose from a list of Window Managers that are installed on your system. Select Fluxbox and continue to login.
Fluxbox is really simple. The main menu can be seen by right-clicking on the desktop:
At the bottom of the screen, you will see a taskbar that shows you the running programs and lets you switch between workspaces:
The Fluxbox window style is a lot different than you may be used to. Here’s a screenshot for your enjoyment:
Fluxbox is definitely not for everybody, but it’s about as lightweight as you can get, so it’s probably useful for low memory systems.