I ran the following command as per "Unable to Install Guest Additions CD Image on Virtual Box", restarted the server, and it still behaves like the guest utils haven't been installed, because I'm still getting the tiny screen. Electing to make the clipboard and drag 'n' drop functionality bidirectional (via the Devices menu item) appears to do nothing as well. Any suggestions?
sudo apt-get install virtualbox-guest-utils
virtualbox-guest-utils
successful? If not, repeat the installation command and post its output? – David Foerster Mar 27 '15 at 11:03