How to disable “Remember forever” option in mounting encrypted disks

Question

Whenever you mount an LUKS encrypted disk, Ubuntu gives you 3 options:

• Forget immediately
• Remember for this session
• Remember forever

I wanted to know how to reset this choice after choosing the "Remember forever" one, and make the window appear again.

Answer 1

I was looking for a similar information and came across this question of yours. Actually I was trying to understand how was this "remembered password" stored, and if it was safely stored.

Then I stumbled into @Gilles answer to a similar question in Stack Exchange: https://security.stackexchange.com/questions/108242/how-does-nautilus-store-passwords-on-ubuntu

Based on that answer, you can go to "Menu" -> "Passwords and keys". Your stored password should be found under "Login", and can be deleted.

(I'm actually using Linux Mint, and I'm assuming it should be similar on your Ubuntu system. Perhaps instead of "Menu" you should read "Unity", I'm not sure.)