[CentOS] Policy kit issue on new install of 6.4

[m.roth at 5-cent.us]

Emmett Culley wrote:
> Twice I've done a fresh install of a "Development" machine.  In both cases
> pkexec as a normal user always returns "Error executing command as another
> user: No authentication agent was found."  This keeps me from getting a
> root command line and prevents yumex from starting from the launcher.
>
> I've googled and found nothing accept some references to installing
> virtual box.  Checking the man pages for polkit was no help either.
>
> Since this only happens when I install the "Development" group I must
> assume that some package is missing, and I am at a loss as to where to
> look.
>
> Any clues?

Completely unfamiliar with pkexec, but it sounds as though no
authentication agent is running. Is something like ssh-agent running, and
have you added credentials (e.g. ssh-add)?

        mark