Bug 1376774

Summary:	Wrong CUPS configuration for systemd tmpfiles
Product:	[Fedora] Fedora	Reporter:	Iago Rubio <iago>
Component:	cups	Assignee:	Zdenek Dohnal <zdohnal>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	25	CC:	iago, jpopelka, twaugh, zdohnal
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Hardware:	All
OS:	Unspecified
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Last Closed:	2016-12-16 15:35:56 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Iago Rubio 2016-09-16 11:33:41 UTC

Description of problem:
cups includes the file /usr/lib/tmpfiles.d/cups-lp.conf for systemd to create temporary devices in dev. That file configures the group 'lp' to be the files' group but the cupsd build is configuredd to use the user 'nobody'.

Version-Release number of selected component (if applicable):
cups-2.1.4-2.fc24

How reproducible:
There is an error at boot but this can be reproduced by starting the service on terminal.

Steps to Reproduce:
1. Open a terminal window
2. Run the command: systemctl start systemd-tmpfiles-setup-dev 


Actual results:
It shows an error.

Job for systemd-tmpfiles-setup-dev.service failed because the control process exited with error code. See "systemctl status systemd-tmpfiles-setup-dev.service" and "journalctl -xe" for details.


Expected results:
The service should start.

Additional info:
It can be fixed changing the /usr/lib/tmpfiles.d/cups-lp.conf to:

# Legacy parallel port character device nodes, to trigger the
# auto-loading of the kernel module on access.
#
# See tmpfiles.d(5) for details

c /dev/lp0 0660 root nobody - 6:0
c /dev/lp1 0660 root nobody - 6:1
c /dev/lp2 0660 root nobody - 6:2
c /dev/lp3 0660 root nobody - 6:3

Comment 1 Zdenek Dohnal 2016-12-16 15:35:56 UTC

Hi Iago,

thanks for contacting us. I tried to reproduce your issue on Fedora 25 and systemd-tmpfiles-setup-dev started without error. And with new packaging guidelines, user "nobody" is forbidden (https://fedoraproject.org/wiki/Packaging:Guidelines#Users_and_Groups). Probably it is problem with systemd-tmpfiles-setup-dev service. I can only suggest you update of that service or upgrade of Fedora.
Closing this as NOTABUG.