Permissions problem Solved)
Ric Moore
wayward4now at gmail.com
Thu Apr 15 18:17:24 UTC 2010
On Thu, 2010-04-15 at 18:19 +0100, NW wrote:
> Jonas Norlander wrote:
> > 2010/4/15 NW <barnaby at drofle.com>:
> >> I eventually tracked down the relevant file, /etc/udev/permissions.rules
> >> and made the necessary change. On the line referring to the line printer
> >> I added the mode change (MODE="0666") and logged out and then in. The
> >> permissions on /dev/lp0 are now set as required and the printer works fine.
> >
> > That's not a solution but a workaround. If CUPS is running as root
> > there should not be a problem for it to access a device with 0660
> > permission. Have you checked what user and group cups is running as?
> > You can do that with the "ps -eo uid,gid,args | grep cups" command
> > from a terminal. Also check for errors in the logs?
> >
> > On my system CUPS is running as user and group root and the permission
> > on the printer device is:
> > $ ls -lR /dev/ | grep lp
> > crw-rw---- 1 root lp 189, 129 2010-04-15 13:32 002
> >
> > If your CUPS running as same user and group and have same permission
> > as I have then thats not the problem.
> >
> > / Jonas
> >
> Well, for the moment the workaround means that I and my daughter can use
> the printer without any messing about.
>
> I ran cupsctl in a terminal. Among the information is
> user=lp
> group=lpadmin
>
> Is that a problem?
>
> Let me repeat, it is not something that I did. The problems started
> after an upgrade to cups the other day. Before that it was all working
> fine. It is the first problem I have ever had from running the upgrades
> that appear from time to time.
I just did an needed update last night and noted that cups was involved.
Read your note and tested the printer. It works. Whew! But, I'm not
testing a networked printer, just the local one. FYI, Ric
--
My father, Victor Moore (Vic) used to say:
"There are two Great Sins in the world...
..the Sin of Ignorance, and the Sin of Stupidity.
Only the former may be overcome." R.I.P. Dad.
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