Hello Linux Geeksters. As you may know, Virtualbox is a popular virtualization software, being available for both Linux and Windows systems. In order to get more features, like shared folders and clipboard, video acceleration and window integration, we have to also install the Virtualbox Guest Additions.

In this article I will show you how to install Virtualbox Guest Additions on Fedora 20, Fedora 19 and Fedora 18.
If you don’t have Virtualbox already installed on your Fedora system, follow the instructions from this article and install Virtualbox.
Now, let’s install the Virtualbox Guest Additions. Follow the instructions exactly, in order to get a successful installation:
Install the needed dependencies:
$ sudo yum install gcc dkms make
Next, from the Menu, go to Devices and select Install Guest Additions.
Now, open a terminal and do the following:
$ sudo mkdir /media/VirtualBoxGuestAdditions
$ sudo mount -r /dev/cdrom /media/VirtualBoxGuestAdditions
$ cd /media/VirtualBoxGuestAdditions
$ sudo ./VBoxLinuxAdditions.run
If the installation goes well, reboot the system and you are done.
via lffl.org