I've just gotten myself a Lenovo laptop, which came with Windows 7 preinstalled (no surprise there). I've installed Kubuntu on quite a few systems before, but this one poses a new problem for me.

The hard drive comes with four primary partitions, as revealed by Gnu Parted (running off a flash drive). If one of them was an extended partition there would be no problem -- I could just create a new Linux secondary partition and move things around as needed. I'd rather not clobber any of the existing partitions, though of course I can move them around or even resize them. Is there any way to create a partition for Linux without losing the contents of one of the existing partitions?