How to upgrade Raspbian from Wheezy to Jessie

There is a way to upgrade your Raspbian from Wheezy to Jessie. Just follow the instructions below:

• Edit file /etc/apt/sources.list with your favourite editor (for example Nano)

• Change the line that has "wheezy" to "jessie". In case there are many lines change them all.

After that give three commands as root:

• sudo apt-get update

• sudo apt-get upgrade

• sudo apt-get dist-upgrade

Now type as root the following to find out which version of Raspbian you are running:

• lsb_release -a

That's it!