Or, on 24.04 open System Settings>System>Users. To add a new user you will have already got this far and know how to unlock this part of the utility...
The original user created during the install has sudo right so you could log in to a terminal as the original user and add the newly created user to...
You are missing a very basic concept of Linux which is that it is a multi-user system by design and Ubuntu and almost all other Linux systems have at...
Thanks, unfortunately that just says to run "sudo apt-get install grub-efi-ia32" which as you can see from my original post I have already tried but...
Then succeeding users doesn't apply to your system. Just ignore that then.
This is just the way is works (or is suppose to work) if you had multiple...