How to convert ubuntu server inot a light desktop

covert_ubuntu_server_into_light_desktop

# source: 	https://digitz.org/blog/install-gui-ubuntu-server/
		http://en.ig.ma/notebook/2012/virtualbox-guest-additions-on-ubuntu-server
		https://linuxconfig.org/how-to-install-gui-desktop-environment-on-ubuntu-linux-14-04-lts-trusty-thar


# Install lxde in server
	sudo apt-get install --no-install-recommends lxde lxdm -y
# Install virtualbox_guest_edition
	# Install necessary build tools and build dependencies:
	sudo apt-get install -y dkms xorg build-essential linux-headers-generic 
	# Mount the CD Rom with the shell command:
	sudo mount /dev/cdrom /media/cdrom
	# Build and install the Guest Additions:
	sudo /media/cdrom/VBoxLinuxAdditions.run
	# Install guest edition 
	sudo apt-get install virtualbox-guest-dkms 

# Create a trash icon in the desktop
	sudo apt-get install gvfs
	
# Add share folder
	Share a folder and then add VM user to the group vboxsf
		sudo usermod -a -G vboxsf USER_NAME
	Now logout and log back in :)
	
# Access usb
	Insert the usb and configure throught virtualbox interface
	Check the usb:
		sudo fdisk -l
	Create a mountpoint
		sudo  mkdir /media/usb
	Mount the usb
		sudo mount /dev/sdb1 /media/usb   # considering sdb1 is the usb (from fdisk)
	Unmount when done with the usb
		sudo umount /media/usb

# Install chrome:
	# Add chrome repository
	- Open  "sudo vim /etc/apt/sources.list"
	- Add "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" to the file
	- Add the key "wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -"
	#############################################################################################
	TO REMOVE THE KEY ADDED:
		sudo apt-key list
		Example output:
				pub   1024R/B455BEF0 2010-07-29
				uid                  Launchpad clicompanion-nightlies
		sudo apt-key del B455BEF0
	#############################################################################################
	NOTE:  	Adding the key already add chrome repo in /etc/apt/sources.list.d/google.chrom.list.
		So it is ok to comment the repos entry in /etc/apt/sources.list
	- "sudo apt update"
	- "sudo apt-get -f install"
	- "sudo apt install google-chrome-stable"
# Install Java :
	sudo add-apt-repository ppa:openjdk-r/ppa  
	sudo apt-get update   
	sudo apt-get install openjdk-7-jre  

	-set JAVA_HOME and PATH
	- Add ' JAVA_HOME="/usr/lib/jvm/java-7-openjdk-amd64" ' in /etc/environment
	PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
	'source /etc/environment'