Can't resize partition in Disk Utility

[yjchua95]

Good day.

I have a dual boot system (ML and SL for rosetta). Now, I want to try to resize my Macintosh HD (ML) for more space, but I can't seem to do so. Every time I drag the slider down, and click Apply, it reverts back to the original configuration, with that unallocated space below the Macintosh HD part.

Attached is a screenshot.

Is it also possible to enlarge my Snow Leopard partition?

Thanks in advance!

 

[Mrbobb]

Not absolutely sure but I think you cannot resize an active volume, the volume u boot with. So boot with SL, then make sure ML is unmounted, THEN.

 

[yjchua95]

Not absolutely sure but I think you cannot resize an active volume, the volume u boot with. So boot with SL, then make sure ML is unmounted, THEN.

Impossible, because a warning window came up, telling me that I needed a newer version of Mac OS X to do so