Encrypting whole new external hard drive with Luks. I.e. it is not a system drive (will be used only to store data, not to boot the OS), and it is completely blank.
All descriptions that I found about how to achieve this go along the lines of:
- create a new partition, which is the same size as the whole disk
- encrypt that partition
Creating a new encrypted partition:
Encrypting an existing partition
Is it possible to encrypt the whole disk, instead of having one big encrypted partition?
Probably the answer will be no, so the real question is why not?
In other words
What would happen if instead of typing
sudo cryptsetup -v -y luksFormat /dev/sda1
I would type
sudo cryptsetup -v -y luksFormat /dev/sda
(without having created