Bug#423198: cupsys: "Unable to open parallel port device file "/dev/lp0": Permission, denied"
I tried to subscribe to this, but when I did I got a lot of Evolution
stuff. I don't use Eveloution. I tried it, but Thunderbird is a much
better e-mail package.
I am using:
Ubuntu 8.04 (hardy)
2.22.3 (Ubuntu 2008-07-09)
2.6.24-19-generic (#1 SMP Fri Jul 11 21:01:46 UTC 2008)
Linux
4.2.3 (x86_64-linux-gnu)
unknown (13 June 2008 01:10:57AM)
whitt-desktop
Here is the message that I recieve:
Aug 6 17:25:20 whitt-desktop kernel: [12507.816239]
audit(1218057920.574:9): type=1503 operation="inode_permission"
requested_mask="::rw" denied_mask="::rw" name="/dev/tty" pid=16125
profile="/usr/sbin/cupsd" namespace="default"
This problem is pervasive and has been causing a lot a lot of grief.
Many of the Bug reports have the same complaint; "Cups cannot print on
UBS or Parallel port printers.
There has to be a better answer that mucking about in Linux to change
authorization procedures. I have a feeling that many of these bug
reports will go away if some is smart enough to tell us what values to
put into "User Settings" of "User and Groups". I got this far by
checking with a non programmer who has a UBS printer running:
Account
Real name: default
Set Password by Hand
User Privileges
Manage printer
Advanced
Home directory: /home/default
Shell: /bin/bash
Main group: default
User ID: 1004
Now I don't have any idea what most of this means, I am new at Linux,
but he doesn't get the denied_mask="::rw" message and his printer
works. Unfortunately his son-in-law set it up for him and he is very
ill at the moment so I can't get his reasons for the entries. Some of
those listed above were filled in for me by User Settings.
I know that I am coming in the back door, but some of this may make
sense to people with some experience with Linux. New desktop user
haven't had the time to learn.
I hope this is more helpful than a bother, if so I would appreciate any
advice you could send me.
--
Graham M. Whittenberg
Morristown, TN
Reply to: