I have installed on my HD Win 7, and PCLos 2010. If I were to install say pclos 2009.2. How would I set up Grub so I could boot either one? Which Grub would I use the one already installed when I did 2010 or the one on the 2009,2 live c-d? I am thinking I would need to use the live c-d and redo Grub, But would it matter which one I used? If this should be posted some place else, please move it. Thanks.