You decided to protect your data with LUKS, and that’s great, but you chose a bad passphrase, and you need to change it. You’re in luck. Unlike a lot of encryption solutions, LUKS actually does allow you to change your passphrase fairly easily. Unfortunately, this isn’t a solution for a lost passphrase, you do need to know your previous one, but it is a great way to rotate passphrases or get rid of a poorly designed old one. Changing the Passphrase Simply changing your passphrase on a LUKS drive with only one passphrase is extremely easy. Open a terminal and run the following command, substituting… Read more