Disk utility, shrink 1 partition, expand the other I have two partitions on my external HDD, I shrinked 1 partition (Macintosh Lion) in order to expand the other (Macintosh HD), but I can't drag the lower right corner to expand of the 'Macintosh HD' partition, I can only do it with the 'Macintosh Lion' one, ideas?
Yes, you are restricted in that sense, you can only modify the partition space "at the end" of the disk, as you have discovered.