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Bug#516945: marked as done (cups: Serial backend permissions problem)

Your message dated Sat, 28 Feb 2009 14:44:02 +0100
with message-id <20090228134402.GI4552@piware.de>
and subject line Re: [Pkg-cups-devel] Bug#516945: cups: Serial backend permissions problem
has caused the Debian Bug report #516945,
regarding cups: Serial backend permissions problem
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
516945: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=516945
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: cups
Version: 1.3.8-1lenny4.1
Severity: normal

*** Please type your report below this line ***
Fresh install of Lenny, serial printer added with
lpadmin -p DEC-LA100 -v serial:/dev/ttyS0?baud=9600+size=8+parity=none+flow=hard -D "DEC Letterprinter 100" -P textonly.ppd 

Print fails with
E [24/Feb/2009:08:18:48 +0000] PID 4993 (/usr/lib/cups/backend/serial) stopped with status 22! 

in log.

# ls -l /dev/ttyS?
crw-rw---- 1 root dialout 4, 64 2009-02-24 15:36 /dev/ttyS0
crw-rw---- 1 root dialout 4, 65 2009-02-24 16:09 /dev/ttyS1
crw-rw---- 1 root dialout 4, 66 2009-02-24 14:15 /dev/ttyS2
crw-rw---- 1 root dialout 4, 67 2009-02-24 14:15 /dev/ttyS3

Restarting cups after each change:

chown root.lp /dev/ttyS0
 -does not fix.

chmod 666 /dev/ttyS0
 -does not fix.

Return /dev/ttyS0 to original permissions/ownership.

# ls -l /usr/lib/cups/backend/serial
-rwxr--r-- 2 root root 14900 2009-01-13 16:53 /usr/lib/cups/backend/serial
(Received theory being serial should run as root with 744, or 700, permissions) 

chmod 700 /usr/lib/cups/backend/serial

 -fixes problem.

Note permissions of serial in /usr/lib/cups/backend-available are 700.


-- System Information:
Debian Release: 5.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i586)

Kernel: Linux 2.6.26-1-486
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages cups depends on:
ii  adduser            3.110                 add and remove users and groups
ii cups-common 1.3.8-1lenny4.1 Common UNIX Printing System(tm) - ii debconf [debconf-2 1.5.24 Debian configuration management sy ii ghostscript 8.62.dfsg.1-3.2lenny0 The GPL Ghostscript PostScript/PDF ii libavahi-compat-li 0.6.23-3lenny1 Avahi Apple Bonjour compatibility 
ii  libc6              2.7-18                GNU C Library: Shared libraries
ii libcups2 1.3.8-1lenny4.1 Common UNIX Printing System(tm) - ii libcupsimage2 1.3.8-1lenny4.1 Common UNIX Printing System(tm) - ii libdbus-1-3 1.2.1-5 simple interprocess messaging syst ii libgnutls26 2.4.2-6 the GNU TLS library - runtime libr 
ii  libkrb53           1.6.dfsg.4~beta1-5    MIT Kerberos runtime libraries
ii  libldap-2.4-2      2.4.11-1              OpenLDAP libraries
ii libpam0g 1.0.1-5 Pluggable Authentication Modules l ii libpaper1 1.1.23+nmu1 library for handling paper charact 
ii  libslp1            1.2.1-7.5             OpenSLP libraries
ii lsb-base 3.2-20 Linux Standard Base 3.2 init scrip 
ii  perl-modules       5.10.0-19             Core Perl modules
ii poppler-utils [xpd 0.8.7-1 PDF utilitites (based on libpopple 
ii  procps             1:3.2.7-11            /proc file system utilities
ii ssl-cert 1.0.23 simple debconf wrapper for OpenSSL 

Versions of packages cups recommends:
ii avahi-utils 0.6.23-3lenny1 Avahi browsing, publishing and dis ii cups-client 1.3.8-1lenny4.1 Common UNIX Printing System(tm) - ii foomatic-filters 3.0.2-20080211-3.2 OpenPrinting printer support - fil ii smbclient 2:3.2.5-4 a LanManager-like simple client fo 

Versions of packages cups suggests:
ii cups-bsd 1.3.8-1lenny4.1 Common UNIX Printing System(tm) - 
pn  cups-driver-gutenprint  <none>           (no description available)
pn  cups-pdf                <none>           (no description available)
ii foomatic-db 20080211-2+nmu1 OpenPrinting printer support - dat ii foomatic-db-engine 3.0.2-20080211-1 OpenPrinting printer support - pro 
pn  hplip                   <none>           (no description available)
pn  xpdf-korean | xpdf-japa <none>           (no description available)

-- debconf information:
  cupsys/raw-print: true
cupsys/backend: ipp, lpd, parallel, scsi, serial, socket, usb, snmp, dnssd

--- End Message ---
--- Begin Message --- 
Version: 1.3.9-6

Hello Tim,

Tim Allen [2009-02-24 16:33 +0000]:
> chmod 700 /usr/lib/cups/backend/serial
> 
>   -fixes problem.

That's indeed the proper fix for Lenny. This has been fixed in
unstable already, in versino 1.3.9-6.

> Note permissions of serial in /usr/lib/cups/backend-available are 700.

This is a hardlink, so if you change /usr/lib/cups/backend/serial, the
binary in backend-available/ will mirror that change.

Thanks,

Martin
-- 
Martin Pitt                        | http://www.piware.de
Ubuntu Developer (www.ubuntu.com)  | Debian Developer  (www.debian.org)

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