I am unable to repartition my single Linux drive. For clarity, I have done the following:
1a) Restarted my computer on a USB/CD boot of Linux
1b) Used Gparted to unmount the drive I want to partition (Ignore the lock in the picture below).
1c) Attempted to shrink the Linux partition and create a new partition (see Resizing)
None of the above has worked...it only allows me to create 32 mbs of "unused" disk space. I am not currently using the full 119.24 GB of my drive for Linux.