How to change admin user for GUI?

Karl Auer kauer at
Wed Nov 7 00:23:14 UTC 2012

On Tue, 2012-11-06 at 20:43 +0100, Josef Wolf wrote:
> I have installed ubuntu-12.4 for a friend. Since he is not a computer guy and
> I will need to do the administration on this computer, the first admin account
> I created was an account for me. Then I created a second admin account for
> him. We can both use sudo to do the administration on command line.

When you use sudo, whose password is requested?

*How* did you create the second user? Check that you have different user
IDs (look in the /etc/passwd file) and that you have not inadvertently
chosen user names that match other usernames in that file.

> Since he is not familiar with the command line, he is doing everything with
> the GUI. But when he does anything that needs root permissions (e.g. update
> the system), the GUI asks for _my_ password.

You've said he is logged in as himself, not as you. How exactly did he
log in? If the machine is rebooted and left alone, it will eventually
present a login dialogue - is it this dialogue that he uses to log in?

What happens when he runs gksudo from the command line - whose password
is requested?

If you can reveal them, what specific usernames are involved?

Regards, K.

Karl Auer (kauer at

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