I would like to do exactly what this poster wants to do:
When a LUKS encrypted partition pops up the unlock window it gives 3 options for how to remember the password. The "Remember password until you logout" is always ticked by default. Is there a way to make "Forget password immediately" the default?
Enter a passphrase to unlock the volume: [] Forget password immediately [x]Remember password until you logout [] Remember forever
Unfortunately, there hasn't been any answer to this question, so I created a new question. (Let me know if I wasn't supposed to do it this way!)