I have a dual boot of windows 7 and Ubuntu 12.10 on my laptop. I want to upgrade to 14.04 LTS (or any other newer LTS version). My questions are:
Do I have to backup my data in Windows 7? (I originally used only Windows 7 and recently, my teacher made the dual boot for me to learn about Ubuntu.)
How do I update to version 14.04 LTS without using any CD or USB?
Thank You