UPGRADE KALI-LINUX 1.1.* TO 2.0-SANA

Every one knows an latest version of kali-linux is released ..
a off course it's late to post this but not very late ..
you all know linux is the open source as well free to download and install.

so to the people who use already install kali sana in his pc that's good but for those whose use previous version of kali linux 1.1.* series can update their system without reinstalling it.
it's very easy....

step 1.
go to browser and type "KALI SANA" .

step 2.
goto the second link or simply go to kali.org page
after page open ,scroll down you will found this..shown in screen shot below ..

so what you have to do with this ...

steps 1.
open terminal and type this 

 gedit /etc/apt/sources.list

this will open an page in gedit(an text editor in kali).

step 2.

then replace all the written things in their with 
these reporties....


deb http://http.kali.org/kali sana main non-free contrib


deb http://security.kali.org/kali-security/ sana/updates main contrib non-free

step 3.
after this just save (ctrl+s) and then close the file.

step 4.
now again open terminal(ctrl+alt+t)..and type the given command..
apt-get update//this will upgrade your all softwares


apt-get dist-upgrade // this will upgrade the system distribution

now after it will ask for additional 2.5 gb space in your disk.

just press 'y'/yes then nothing you have to do

except patience...

it's done ...

after this just 'reboot'..