In 2012 I used Ubuntu's gnome-disks utility to encrypt an external drive. Last year I was still being able to unlock it. But today I tried again on Ubuntu 2012.04 and gnome-disks says: Error ...
I am planning on selling my laptop. So I formatted my disk using the Disk Utility and chose to overwrite the disk with zeroes. Two questions: Is this the same as overwriting the disk using dd? sudo ...
I have tried gnome-disk-utility and it has failed. Yet again I have deleted the launcher for, 'Disks' which is gnome disk utility and now I can't see how I can open it. I am running 12.10.