How to change admin user for GUI?

[Liam Proven]

On 6 November 2012 19:43, Josef Wolf <jw at raven.inka.de> wrote:
> Hello,
>
> 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.
>
> 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.
>
> How can I change this setting so that _his_ PW is asked instead?

For what it's worth, I have had the same problem. (I think it was on
Xubuntu or Lubuntu rather than Ubuntu but it doesn't matter.)

In the end, after some Googling and no clear answers, I just
reformatted & reinstalled.

-- 
Liam Proven • Profile: http://lproven.livejournal.com/profile
Email: lproven at cix.co.uk • GMail/G+/Twitter/Flickr/Facebook: lproven
MSN: lproven at hotmail.com • Skype/AIM/Yahoo/LinkedIn: liamproven
Tel: +44 20-8685-0498 • Cell: +44 7939-087884