Virtual Box Issues

[rk2319]

When I try to put the Ubuntu Virtual Box in full screen it has black bars all around it. Not sure what to do. I looked into it a little and some people said to install the 'guest additions' but they will not install. Any help with this would be much appreciated. My host operating system is OS X 10.11.4. The OS in the virtual box is Ubuntu 15.10.

[MoonlightSylv]

You have to install guest additions, look up a guide as it's a bit confusing on Ubuntu.

[Mark77]

You will have to install the guest additions as the super-user (ie: use su or sudo).  That's the only way to get the virtual machine itself to take commands from the virtualizer (ie: virtualbox) to properly scale itself for output. 

 

Have you ever installed guest additions?  Basically you set the VM up so that it virtualizes a CD-ROM drive that mounts an ISO of the guest additions.  Your OS may or may not auto-mount this volume, and you go in there, as root (or sudo) and go "sh VBoxLinuxAdditions.run"