Sun Microsystem, which later was acquired by Oracle, with its specialized Java Language has created a Virtualization Machine called "Virtual Box". Recently I was trying to install Ubuntu in Virtual Box and to my surprise, after installing Ubuntu, I found that after pressing Right Ctrl + F, Ubuntu was not going to full screen covering all the area of your monitor.
A screenshot of the Ubuntu after pressing Right Ctrl + F.
The screenshot clearly shows the Black spaces in the full screen mode of Ubuntu in Virtual Box along its right and left sides.
If you need to make Ubuntu Full Screen then all we need to do is Install the Guest Additions CD Image by going to Devices->Install Guest Additions CD Image. Find the screenshot below.
Then Click on Run and followed by that the password. See the screenshot below to find how to do.
Provide the password into the box.
After that wait for
1 minute to see the installation getting finished..
Now press Return and power down Ubuntu and the again start Ubuntu to find Ubuntu coming full screen, now your Ubuntu will be coming to full screen.
Very simple and humble steps to make Ubuntu coming full screen in Oracle Virtual box.
Thank you for reading.