The Raspberry Pi 2 is a massive upgrade for┬áthe Pi family. The new Pi is based on an ARM 7 processor whereas the old Pi’s are all based on ARM 6. If you don’t want to lose the hours spent on projects on your old Pi’s SD card then you will have to follow these upgrade instructions. As always it is important you backup your Pi’s SD card before making these changes. Click Here for a brilliant guide on how to do this.

To upgrade enter these commands into the terminal:

sudo apt-get update

sudo apt-get upgrade

sudo apt-get dist-upgrade

sudo apt-get install raspberrypi-ui-mods

Now put your SD card in your Pi 2 and enjoy!