How to log message of kern.emerg using syslogd ?

By default, your syslog.conf file looks like:
kern.emerg           *
This means "Kernel emergency messages are forwarded to all logged-in users." which make sense in most case.
If you write the emergency messages to a file, eg /var/adm/messages, the trade off is the the users who are currently login will not see the warming messages on their screens.

 

below is the output from my /etc/syslog.conf file. My only concern is when I execute my command

logger -t genunix -p kern.emerg "pm0 is /pseudo/pm@0"

then instead of getting the kern.emerg why I am getting user.emerg in /var/adm/messages. Thanks!

Also what is '/dev/sysmsg' device?

bash-3.00# cat /etc/syslog.conf 
#ident  "@(#)syslog.conf        1.5     98/12/14 SMI"   /* SunOS 5.0 */
#
# Copyright (c) 1991-1998 by Sun Microsystems, Inc.
# All rights reserved.
#
# syslog configuration file.
#
# This file is processed by m4 so be careful to quote (`') names
# that match m4 reserved words.  Also, within ifdef's, arguments
# containing commas must be quoted.
#
*.err;kern.notice;auth.notice                   /dev/sysmsg
*.err;kern.debug;daemon.notice;mail.crit        /var/adm/messages
 
*.alert;kern.err;daemon.err                     operator
*.alert                                         root
 
*.emerg                                         *
 
# if a non-loghost machine chooses to have authentication messages
# sent to the loghost machine, un-comment out the following line:
#auth.notice                    ifdef(`LOGHOST', /var/log/authlog, @loghost)
 
mail.debug                      ifdef(`LOGHOST', /var/log/syslog, @loghost)
 
#
# non-loghost machines will use the following lines to cause "user"
# log messages to be logged locally.
#
ifdef(`LOGHOST', ,
user.err                                        /dev/sysmsg
user.err                                        /var/adm/messages
user.alert                                      `root, operator'
user.emerg                                      *
)
 
mail.info                                       /var/adm/maillog
mark.*                                          /dev/console

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Thanks blu! :-)