How to install Virtual Guest Additions for Ubuntu 9.10 and other linux Distro Video.

Guest additions in Virtualbox let host Operating System in VirtualBox have improve resolution, and performance. Plus, better mouse capture and uncapture integration.

All you do is go to devices on the top of your Virtual Machine Window and pick Install Guest Additions.

Install Guest Additions

The Guest Additions CD will automatically mount on your desktop in Ubuntu. You need to open the CD and double click on Autorun.sh. A pop-up window will appear with a list of options. Click on the "run in terminal option and type in your administrator password.

Run autorun.sh in terminal

Wait for terminal to  finish installing Guest additions.

 Terminal installing Guest Additions

Lastly, restart Ubuntu, and you will get a pop-up. Read it and click OK. You will now notice that you have a bigger display window/screen resolution in Virtualbox.