A few years ago, I created a username and password for my Linux Ubuntu PC. I’ll call the username user1 and the password pass1. A few months ago, my wife created a new username and password (which I’ll call user2 and pass2). She created it while in the administration mode, which I had logged in.
A few days ago, my wife forgot her password, and cannot remember it. In the Grub menu, only user1 appears (user2 does not appear). When I restart the computer, only user2 appears, and when I go to the administration menu, in order to change the password, I need pass2 (which we forgot).
This is what I want: user1 to appear when I start the computer, or (better yet) to be able to change the password for user2. Are either of these two options possible? And please let me know if you need more information: I don't know how to explain the problem well.