ubuntu 12.04 - headless virtualbox installation

add virtualbox repository to ubuntu:
	sudo nano /etc/apt/sources.list

	add below anad save:
		deb http://download.virtualbox.org/virtualbox/debian precise contrib non-free

download virtualbox repo key:
	wget http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc

install virtualbox repo key:
	sudo apt-key add oracle_vbox.asc

update repository database:
	sudo apt-get update

upgrade installed packages:
	sudo apt-get upgrade

install virtualbox and unzip:
	sudo apt-get install linux-headers-$(uname -r) build-essential dkms
	sudo apt-get install virtualbox-4.2 unzip

Create /etc/default/virtualbox:
	sudo nano /etc/default/virtualbox

	Add this one line to the file:
		VBOXWEB_USER=[USERNAME]

Add local user to vboxusers group:
	sudo adduser [USERNAME] vboxusers

download phpvirtualbox:
	wget http://phpvirtualbox.googlecode.com/files/phpvirtualbox-4.2-4.zip

Unzip phpvirtualbox:
	unzip phpvirtualbox-4.2-4.zip

Create the phpvirtualbox directory:
	sudo mkdir /var/www/phpvirtualbox

Copy the phpvirtualbox files to the folder /var/www/phpvirtualbox:
	sudo cp -R phpvirtualbox-4.2-4/* /var/www/phpvirtualbox

Prepare the phpvirtualbox config file:
	sudo cp /var/www/phpvirtualbox/config.php-example /var/www/phpvirtualbox/config.php

Edit config.php:
	sudo nano /var/www/phpvirtualbox/config.php

Update the $username and $password variable to match your local user:
	var $username = ''
	var $password = ''

You can now start the Virtualbox web service:
	sudo /etc/init.d/vboxweb-service start

Download VirtualBox Extension Pack. This package installs what you need to do remote desktop into the virtual machines:
	wget http://download.virtualbox.org/virtualbox/4.1.18/Oracle_VM_VirtualBox_Extension_Pack-4.1.18-78361.vbox-extpack
	wget http://download.virtualbox.org/virtualbox/4.2.4/Oracle_VM_VirtualBox_Extension_Pack-4.2.4-81684.vbox-extpack
Install VirtualBox Extension Pack:
	sudo VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-4.2.4-81684.vbox-extpack

Restart the server:
	sudo shutdown -r now

access phpvirtualbox:
	go to http://ip_address/phpvirtualbox
	default user:admin
	default password: admin
	go to preferences to add your username and password.