GParted seems to be the more robust and feature-rich application of the two, is there a reason as to why GParted is not installed by default in Ubuntu?
Ubuntu – Why is Disk Utility (Palimpsest) the default and not GParted
disk-utilitygpartedpartitioning
Best Answer
A while back I've read somewhere on the net that Disk Utility (Palimpsest) is a udisks graphical front-end included in the gnome-disk-utility package, that gives the opportunity to set up an encrypted partition easily, with a couple of clicks, whereas with GParted you need to use the cryptsetup command line tool.