From within the Ubuntu VM.
Start Parallels Desktop, and open your Ubuntu VM. Once you are on the Unity desktop click the 'Virtual Machine | Reinstall Parallels Tools' menu option (in the Mac main Parallels Desktop menu). It should ask you to confirm, say 'Yes'. This will mount the Parallels Tools image (on my computer it opens the Parallels Tool folder in Nautilus). Then open a Ubuntu terminal window and follow steps 3 and 4.
Last edited: Apr 28, 2012