Virtualbox guest additions on ubuntu 14 04

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title: 'Virtualbox Guest Additions on Ubuntu 14.04'
date: '2014-02-24T10:10:11-06:00'
status: publish
permalink: /virtualbox-guest-additions-on-ubuntu-14-04
author: admin
excerpt: ''
type: post
id: 563
category:
    - Virtualbox
tag: []
post_format: []

Just a few notes on getting the VirtualBox Guest Additions to work on Ubuntu 14.04 alpha1.

1. Unknown version of X
"Installing the Window System drivers
Warning: unknown version of the X Window System installed. Not installing
X Window System drivers."

Explanation at the following links. You need to use a newer version of the Guest Additions.
virtualbox and the latest 14.04… display stuck at low resolution
https://www.virtualbox.org/ticket/12623

2. Headers for the running kernel not installed.

http://askubuntu.com/questions/98416/error-kernel-headers-not-found-but-they-are-in-place

The message is misleading. In my case it was actually missing dkms so before you install the addition run
sudo apt-get install build-essential linux-headers-uname -r dkms

Above helped with getting the Guest Additions running but still had some issue. Looks like graphics resolution is ok but Unity not running. I will investigate and update more.