So I felt it was time to upgrade my 12" PowerBook with ssd and more ram. And that worked. But then I realized I had to reinstall it. My PB of course has a broken DVD so I busted out my dmg of the disc and put it on a USB stick. Manage to boot and everything, BUT! When I want to install to the ssd drive it claims it can't unmount the drive. The image was made with a mbp, does that create a problem intel vs ppc? Or is it the fact me using USB that I can't unmount solely run on the stick to install. I have a FireWire drive that I haven't tried to use yet but I am about to try, if that does not work, what is my last resort?