For a few months now 12.04 Desktop Edition has been informing me that I only have 2.9MB desk space remaining.

I have never seen this message on previous versions of ubuntu - does anyone know a method (preferably something in terminal) that will allow me to erase all but the current grub version? Or whatever is deemed the appropriate # of grub versions to keep. Unless I clean up the boot folder I cannot install crucial updates (its been two months since my last update/upgrade).

The current size of "boot" is 223.1MB.