VBoxLinuxAdditions have various use in Virtual System but basically we use it to Full Screen our Distro.
We can Add VBoxLinuxAdditions directly from Menu section of your Virtualbox.
Devices –> Insert Guest Additions CD image…
But Something this process through error.
Hence we have to manually run the VBoxLinuxAdditions using Terminal.So Let’s see how ?
Follow the following command in your Terminal.
chmod +x VBoxLinuxAdditions.run
./VBoxLinuxAdditions.run
Finally Reboot your System using following Command.
reboot
Your Guest Addition must be added to your system.