Installing VBox Guest Additions in Fedora

You need a few extra bits before you can install Guest Additions in Fedora:

$ yum install kernel-headers kernel-devel gcc

Then go for it:

 $ cd /run/media/mac/VBOXADDITIONS_4.2.16_86992

 $ sudo ./VBoxLinuxAdditions.run

 Finally, when the installer finishes, we need to add our user to the 'vboxusers' group:

$ sudo usermod -a -G vboxusers {user}

Replace {user} with your username. Then reboot to finish.

HTH