I am here because I need a little advice to create and install a 3rd OS on my laptop. Let me quickly epxplain, I have windows for my 3d work(maya) and gaming , then I started to move my cpp programming and opengl on ubuntu 12.04. In order to make nvidia prime technology to work I needed to use backports and doing this way multiple screen is not supported, but I got everything else to work properly (compiling , opengl etc). Now I wish to update to ubuntu 14.04 where I can use all my screens (total of 3) with nvidia-prime. I dont want to update dircectly the ubuntu 12.04 partition because it s a safeplace where everything works so I want to make a 3rd partition to do my tests with ubuntu 14.04. Now I tried that on my spare laptop and everytime I was resizing the partitions and make a new one (from windows) the grub was broken and I had to start from live cd and use boot repair. Now my questions are: What s the best way to do this? If i resize the partition from ubuntu is grub gonna be broken ? (I wish not to try too much my luck doing over and over the repair)
PS : I actually have two hard drive C: full windows install D: (data drive) , 80% data 20% ubuntu 12.04.
Thanks in advance
Cheers
M.