http://giggles.vernccvbvyi5qhfzyqengccj7lkove6bjot2xhh5kajhwvidqafczrad.onion/tutorial/encrypt-pendrive.html
[ Step 2 - LUKS Formating ]
Now you will use the cryptseupt the first time on this task, issue the following commands which are marked in bold, you will be prompted for the password, I recommend to use at least 20 characters: sh-5.1 # cryptsetup luksFormat /dev/sdb --type luks2 WARNING!