How to run Gnome disk utility
Solution 1:
I am on Lubuntu 14.04. Install the package gnome-disk-utility. However, to run it in a terminal, type gnome-disks.
In my localized German version of the menu, it appears under Accessories > Drives.
Solution 2:
Gnome Disc Utility is now called Disks
To run disks open the dash by clicking the Ubuntu logo on the side bar.
Then type in disks and click the disks icon to launch.
If it's no longer installed, then install the package gnome-disk-utility
Solution 3:
Type Disk Utility in the unity dash panel or
crtl+alt+t
and type
palimpsest