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Full Discussion: Unable to run crash utility
Operating Systems Linux Red Hat Unable to run crash utility Post 302978331 by fretagi on Friday 29th of July 2016 05:13:13 AM
Old 07-29-2016
Unable to run crash utility
Hi

I have a system running
Code:
 cat etc/redhat-release
Red Hat Enterprise Linux Server release 7.0 (Maipo)

, and I am trying to check why is crashing a lot of times. I have checked the following files, but with no sucessfull results:

Code:
 ls -lrt *.log
-rw-r--r--. 1 root root   29925 Dec 23  2015 Xorg.9.log
-rw-r--r--. 1 root root       0 Dec 29  2015 sd-client-trace.log
-rw-r--r--. 1 root root   30152 Mar  3 12:23 Xorg.1.log
-rw-------. 1 root root     158 Jun  8 14:54 yum.log
-rw-r--r--. 1 root root    4371 Jul 28 11:45 sd-audit.log
-rw-r--r--. 1 root root   12456 Jul 29 00:55 boot.log
-rw-r--r--. 1 root root   29534 Jul 29 00:55 Xorg.0.log
-rw-r--r--. 1 root root       0 Jul 29 00:55 pm-powersave.log
-rw-r--r--. 1 root root       0 Jul 29 00:55 sd-recovery.log
-rw-r--r--. 1 root root 5890909 Jul 29 00:55 sd-daemon-trace.log
-rw-------. 1 root root 34633052 Jul 29 00:35 messages

I came across a utility called crash, but to running it its proving very difficult, as you can see below:

Code:
 crash /root/lib/modules/3.10.0-123.el7.x86_64.debug /var/crash/127.0.0.1-2016.07.27-04\:13\:18/vmcore

crash 7.0.2-6.el7
Copyright (C) 2002-2013  Red Hat, Inc.
Copyright (C) 2004, 2005, 2006, 2010  IBM Corporation
Copyright (C) 1999-2006  Hewlett-Packard Co
Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
Copyright (C) 2005, 2011  NEC Corporation
Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.
This program is free software, covered by the GNU General Public License,
and you are welcome to change it and/or distribute copies of it under
certain conditions.  Enter "help copying" to see the conditions.
This program has absolutely no warranty.  Enter "help warranty" for details.

crash: unable to read dump file /root/lib/modules/3.10.0-123.el7.x86_64.debug
/root/lib/modules/3.10.0-123.el7.x86_64.debug: read: Is a directory
/root/lib/modules/3.10.0-123.el7.x86_64.debug: read: Is a directory
crash: /root/lib/modules/3.10.0-123.el7.x86_64.debug: lseek: Invalid argument
read_maps: unable to read header from /root/lib/modules/3.10.0-123.el7.x86_64.debug, errno = 1
crash: /root/lib/modules/3.10.0-123.el7.x86_64.debug: not a supported file format

Usage:

  crash [OPTION]... NAMELIST MEMORY-IMAGE  (dumpfile form)
  crash [OPTION]... [NAMELIST]             (live system form)

Enter "crash -h" for details.

please can you help?
 

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LEARN ABOUT CENTOS

rhnreg_ks

RHNREG_KS(8)							   Red Hat, Inc.						      RHNREG_KS(8)

NAME

       rhnreg_ks - A program for non interactively registering systems to Spacewalk Server, Red Hat Satellite or Red Hat Network Classic.

SYNOPSIS

       rhnreg_ks [options]

DESCRIPTION

       rhnreg_ks  is  a  utility  for  registering  a  system with the "Spacewalk Server", "Red Hat Satellite" or "Red Hat Network Classic". It is
       designed to be used in a non-interactive environment  (a kickstart style install, for example).	All the information can  be  specified	on
       the command line or stdin.

OPTIONS

       --profilename
	      Specify  the profile name that should be used as an identifier for the system in Spacewalk Server, Red Hat Satellite or Red Hat Net-
	      work Classic

       --username
	      The username to register the system with under Spacewalk Server, Red Hat Satellite or Red Hat Network Classic. This can be an exist-
	      ing Spacewalk, Red Hat Satellite or Red Hat Network Classic username, or a new username.

       --password
	      The password associated with the username specified with the --username option. This is an unencrypted password.

       --activationkey
	      Specify/use a serial number to associate with the system. This is optional, but activation keys can really simplify the registration
	      process. Learn more about activation keys in the online RHN documentation.

       --contactinfo
	      This option has been deprecated. Please login to the server web user interface and update your contactinfo.

       --nohardware
	      Do not probe or upload any hardware information.

       --nopackages
	      Do not profile or upload any package information.

       --novirtinfo
	      Do not profile or upload any virtualization information.

       --norhnsd
	      Do not start rhnsd after completion.

       --force
	      Register the system even if it has already been registered.

       --version
	      Show the version of rhnreg_ks.

       --proxy
	      Specify a HTTP proxy to use.

       --proxyUser
	      Specify a username to use with an authenticated HTTP proxy.

       --proxyPassword
	      Specify a password to use with an authenticated HTTP proxy.

       --sslCACert
	      Specify a path to a SSL CA certificate to use.

       --serverUrl
	      Specify a URL to as the server.

       -h, --help
	      Show a help message and exit.

FILES

       /etc/sysconfig/rhn/systemid
	      The digital server ID for this machine if the system has been registered onto "Spacewalk Server", "Red Hat Satellite"  or  "Red  Hat
	      Network Classic".  This file does not exist otherwise.

       /etc/sysconfig/rhn/up2date
	      The common configuration file used by RHN client programs.

EXAMPLES

       Register a new system to Spacewalk / Red Hat Satellite / Red Hat Network Classic:

	      rhnreg_ks --profilename "example_profile_name" --username "someexampleuser" --password "foobar"

SEE ALSO

       rhn_check(8), rhn_register(8), rhnsd(8), rhn-profile-sync(8), rhnplugin(8), up2date(5).

AUTHORS

       See the AUTHORS file included with this software.

       This manual page was written by Adrian Likins <alikins@redhat.com> and James Bowes <jbowes@redhat.com>

BUGS

       Report bugs to <http://bugzilla.redhat.com>.

COPYRIGHT

       Copyright (C) 1999-2011 Red Hat, Inc.

       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

Linux								  2011 February 4						      RHNREG_KS(8)
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