no printout, but no other hint of error. F18. [SOLVED]

[Daniel J Walsh]

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On 05/31/2013 06:51 PM, William Mattison wrote:
> [the previous version of this was sent by mistake; I intended to "Save
> draft".]
> 
> 
>> When I try to print anything out, I get no printout.  Even a test page
>> does not come out. But no indication of trouble shows up on the monitor,
>> and no indication of trouble on the printer's display.  I did download
>> and install the driver.  cups gives no hint of trouble that I recognize.
>> If I restart the system and boot up with Windows 7 home, I do get
>> printouts.
>> 
>> The printer is a Xerox WorkCentre 6015ni, I'm using Fedora-18, 64-bit,
>> and the printer is connected to the system via usb bus.  This is a
>> stand-alone home desktop.
>> 
>> I'm neither trained nor experienced in sys. admin.  I've exhausted the
>> help I can get from the printer's manual (media and web site).  Any help
>> you can give will be appreciated.
> 
> The first specific "symptom" was this in "/var/log/messages":
> 
> May 13 16:26:13 c-69-138-198-76 colord: Device added:
> cups-Xerox_WorkCentre_6015NI May 13 16:26:14 c-69-138-198-76 cupsd[625]:
> p11-kit: couldn't open config file: /root/.pkcs11/pkcs11.conf: Permission
> denied
> 
> This was solved by changing the permissions for "/root/" to 770
> (drwxrwx---).
> 
> From this point on, Ed Greshko worked with me off-line to solve this.  The
> next symptom to appear was in "var/log/cups/errorD [21/May/2013:18:24:12
> -0400] [Job 21] Xerox_WorkCentre_6015NI: error while loading shared
> libraries: libcups.so.2: cannot open shared object file: No such file or
> directory
> 
> D [21/May/2013:18:24:12 -0400] [Job 21] Xerox_WorkCentre_6015NI: error
> while loading shared libraries: libcups.so.2: cannot open shared object
> file: No such file or directory D [21/May/2013:18:24:12 -0400] [Job 21]
> Sent 0 bytes...
> 
> One probable cause was that I (probably, I don't clearly remember) used
> "rpm" rather than "yum" to install Xerox's driver.  Another part of the
> problem was that Xerox's driver used 32-bit libraries, and my system is a
> 64-bit system.  This was fixed by installing the 32-bit library for
> "libcups.so.2":
> 
> "yum install cups-libs*i686"
> 
> I still couldn't print.  But I noticed alerts from SELinux.  The SELinux
> Alert Browser said:
> 
> SELinux has detected a problem. The source process: xrhk2ap Attempted this
> access: execmod On this file: /usr/lib/xrhk1acl.so
> 
> The SETroubleshoot Details Window said:
> 
> SELinux is preventing xrhk2ap from execmod access on the file
> /usr/lib/xrhk1acl.so. ***** Plugin allow_execmod (91.4 confidence) suggests
> **********************
> 
> If you want to allow xrhk2ap to have execmod access on the xrhk1acl.so
> file Then you need to change the label on '/usr/lib/xrhk1acl.so' Do #
> semanage fcontext -a -t textrel_shlib_t '/usr/lib/xrhk1acl.so' # restorecon
> -v '/usr/lib/xrhk1acl.so'
> 
> [... snip ...]
> 
> This was fixed by entering the two suggested commands:
> 
> semanage fcontext -a -t textrel_shlib_t '/usr/lib/xrhk1acl.so' restorecon
> -v '/usr/lib/xrhk1acl.so'
> 
> This fixed the problem.  I was then able to print.
> 
> I thank Joe, Richard, and others for helping or trying to help.  I
> especially thank Ed for his help, and successfully coaching me to being
> able to print.
> 
> Bill.
> 
You might want to open a bugzilla with Xerox to fix the way they build their
libraries, with PIC flags.
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