/usr/lib/nux/unity_support_test -p

Not software rendered: no
Not blacklisted: yes
GLX fbconfig: yes
GLX texture from pixmap: yes
GL npot or rect textures: yes
GL vertex program: yes
GL fragment program: yes
GL vertex buffer object: yes
GL framebuffer object: yes
GL version is 1.4+: yes
Unity 3D supported: no

uname -r
sudo apt-get install linux-headers-$(uname -r)
sudo apt-get autoremove
sudo apt-get install build-essential

cd /media
ls
cd username
ls
cd VBOX*
ls
sudo ./VBoxLinuxAdditions.run

sudo nano /etc/modules

loop
lp
vboxvideo

sudo reboot