Its just not working?

[Anonymous]

Russ Fineman wrote:
> Anonymous wrote:
>
> > Ive tried to setup my hp3420, the driver seems to be included in cups cvs,
> > but if i try to add a printer in the web interface all i get is:
> > "client-error-not-authorized"
> >
> > on the command line logged in as root:
> >
> > lpadmin -p printer -E -v usb:/dev/usb/lp0 -m deskjet.ppd
> > lpadmin: add-printer (enable) failed: client-error-not-authorized
> >
> > Whats wrong?
> >
> > Regards
> > Julius
> Did you enter an lppasswd, then you can use your browser to log on to the
> admin at localhost:631 to do the admin.
>
> The lack know about the password had me stump until someone on this news
> group told me about it.
> --
> Russ

lppasswd: Unable to open passwd file: Permission denied

cups is installed with --prefix=/usr

this programm is just not working, how can there be a permission denied error while logged in as root?