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227 lines
6.9 KiB
Turing
227 lines
6.9 KiB
Turing
.\" Copyright (c) 1983, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)7.t 8.1 (Berkeley) 6/8/93
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.\"
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.NH 1
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Troubleshooting
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.PP
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There are several messages that may be generated by the
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the line printer system. This section
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categorizes the most common and explains the cause
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for their generation. Where the message implies a failure,
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directions are given to remedy the problem.
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.PP
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In the examples below, the name
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.I printer
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is the name of the printer from the
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.I printcap
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database.
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.NH 2
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LPR
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.SH
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lpr: \fIprinter\fP\|: unknown printer
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.IP
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The
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.I printer
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was not found in the
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.I printcap
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database. Usually this is a typing mistake; however, it may indicate
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a missing or incorrect entry in the /etc/printcap file.
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.SH
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lpr: \fIprinter\fP\|: jobs queued, but cannot start daemon.
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.IP
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The connection to
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.I lpd
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on the local machine failed.
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This usually means the printer server started at
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boot time has died or is hung. Check the local socket
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/dev/printer to be sure it still exists (if it does not exist,
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there is no
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.I lpd
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process running).
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Usually it is enough to get a super-user to type the following to
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restart
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.IR lpd .
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.DS
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% /usr/lib/lpd
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.DE
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You can also check the state of the master printer daemon with the following.
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.DS
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% ps l`cat /usr/spool/lpd.lock`
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.DE
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.IP
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Another possibility is that the
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.I lpr
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program is not set-user-id to \fIroot\fP, set-group-id to group \fIdaemon\fP.
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This can be checked with
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.DS
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% ls \-lg /usr/ucb/lpr
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.DE
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.SH
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lpr: \fIprinter\fP\|: printer queue is disabled
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.IP
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This means the queue was turned off with
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.DS
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% lpc disable \fIprinter\fP
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.DE
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to prevent
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.I lpr
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from putting files in the queue. This is normally
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done by the system manager when a printer is
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going to be down for a long time. The
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printer can be turned back on by a super-user with
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.IR lpc .
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.NH 2
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LPQ
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.SH
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waiting for \fIprinter\fP to become ready (offline ?)
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.IP
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The printer device could not be opened by the daemon.
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This can happen for several reasons,
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the most common is that the printer is turned off-line.
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This message can also be generated if the printer is out
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of paper, the paper is jammed, etc.
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The actual reason is dependent on the meaning
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of error codes returned by system device driver.
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Not all printers supply enough information
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to distinguish when a printer is off-line or having
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trouble (e.g. a printer connected through a serial line).
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Another possible cause of this message is
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some other process, such as an output filter,
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has an exclusive open on the device. Your only recourse
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here is to kill off the offending program(s) and
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restart the printer with
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.IR lpc .
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.SH
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\fIprinter\fP is ready and printing
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.IP
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The
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.I lpq
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program checks to see if a daemon process exists for
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.I printer
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and prints the file \fIstatus\fP located in the spooling directory.
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If the daemon is hung, a super user can use
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.I lpc
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to abort the current daemon and start a new one.
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.SH
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waiting for \fIhost\fP to come up
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.IP
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This implies there is a daemon trying to connect to the remote
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machine named
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.I host
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to send the files in the local queue.
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If the remote machine is up,
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.I lpd
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on the remote machine is probably dead or
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hung and should be restarted as mentioned for
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.IR lpr .
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.SH
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sending to \fIhost\fP
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.IP
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The files should be in the process of being transferred to the remote
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.IR host .
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If not, the local daemon should be aborted and started with
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.IR lpc .
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.SH
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Warning: \fIprinter\fP is down
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.IP
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The printer has been marked as being unavailable with
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.IR lpc .
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.SH
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Warning: no daemon present
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.IP
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The \fIlpd\fP process overseeing
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the spooling queue, as specified in the ``lock'' file
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in that directory, does not exist. This normally occurs
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only when the daemon has unexpectedly died.
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The error log file for the printer and the \fIsyslogd\fP logs
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should be checked for a
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diagnostic from the deceased process.
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To restart an \fIlpd\fP, use
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.DS
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% lpc restart \fIprinter\fP
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.DE
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.SH
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no space on remote; waiting for queue to drain
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.IP
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This implies that there is insufficient disk space on the remote.
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If the file is large enough, there will never be enough space on
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the remote (even after the queue on the remote is empty). The solution here
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is to move the spooling queue or make more free space on the remote.
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.NH 2
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LPRM
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.SH
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lprm: \fIprinter\fP\|: cannot restart printer daemon
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.IP
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This case is the same as when
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.I lpr
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prints that the daemon cannot be started.
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.NH 2
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LPD
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.PP
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The
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.I lpd
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program can log many different messages using \fIsyslogd\fP\|(8).
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Most of these messages are about files that can not
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be opened and usually imply that the
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.I printcap
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file or the protection modes of the files are
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incorrect. Files may also be inaccessible if people
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manually manipulate the line printer system (i.e. they
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bypass the
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.I lpr
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program).
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.PP
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In addition to messages generated by
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.IR lpd ,
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any of the filters that
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.I lpd
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spawns may log messages using \fIsyslogd\fP or to the error log file
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(the file specified in the \fBlf\fP entry in \fIprintcap\fP\|).
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.NH 2
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LPC
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.PP
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.SH
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couldn't start printer
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.IP
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This case is the same as when
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.I lpr
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reports that the daemon cannot be started.
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.SH
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cannot examine spool directory
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.IP
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Error messages beginning with ``cannot ...'' are usually because of
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incorrect ownership or protection mode of the lock file, spooling
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directory or the
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.I lpc
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program.
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