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 crashutil(1M)						       crashutil(1M)




 NAME
      crashutil - manipulate crash dump data

 SYNOPSIS
      /usr/sbin/crashutil [-q] [-v version] source [destination]

 DESCRIPTION
      crashutil copies and preserves crash dump data, and performs format
      conversions on it.  Common uses of crashutil include:

      +	   Copying portions of a dump that still reside on a raw dump device
	   into a crash dump directory.

      +	   Converting between different formats of crash dumps.

      +	   Copying crash dumps from one directory, or medium, to another.

      crashutil will write to its destination the crash dump it reads from
      its source.  The crash dump format used to write the destination is
      specified with -v; if -v is not specified, the destination will have
      the same format as the source.  If no destination is specified, source
      is used; the format conversion will be done in place in the source,
      without copying.	When crashutil completes successfully, the entire
      contents of the crash dump will exist at destination; any portions
      that had still been on raw dump devices will have been copied to
      destination.

      There are three known dump formats:

      COREFILE	    (Version 0) This format, used up through HP-UX 10.01,
		    consists of a single file containing the physical memory
		    image, with a 1-to-1 correspondence between file offset
		    and memory address.	 Normally there is an associated
		    file containing the kernel image.  sources or
		    destinations of this type must be specified as two
		    pathnames to plain files, separated by whitespace; the
		    first is the core image file and the second is the
		    kernel image file.

      COREDIR	    (Version 1) This format, used in HP-UX 10.10, 10.20, and
		    10.30, consists of a core.n directory containing an
		    INDEX file, the kernel (vmunix) file, and numerous
		    core.n.m files, which contain portions of the physical
		    memory image.  sources or destinations of this type
		    should be specified as the pathname to a core directory.

      CRASHDIR
      CURRENT	    (Version 2 - the current version) This format, used in
		    HP-UX 11.00 and later, consists of a crash.n directory
		    containing an INDEX file, the kernel and all dynamically
		    loaded kernel module files, and numerous image.m.p



 Hewlett-Packard Company	    - 1 -   HP-UX Release 11i: November 2000






 crashutil(1M)						       crashutil(1M)




		    files, each of which contain portions of the physical
		    memory image and metadata describing which memory pages
		    were dumped and which were not.  sources or destinations
		    of this type should be specified as the pathname to a
		    crash directory.

      Other formats, for example tape archival formats, may be added in the
      future.

      When the source and destination are different types of files - for
      example, when source is a directory and destination is a pair of plain
      files - both must be specified.

    Options
      -q	  (Quiet)  Disables the printing of progress messages.
		  Warning and error messages are still printed.

      -v version  Specifies the version of the destination format.  Allowed
		  values are COREFILE, COREDIR, CRASHDIR, 0, 1, or 2.  Also
		  allowed is the keyword CURRENT, which specifies that the
		  destination format should be the same as the current
		  source format.  CURRENT is the default if -v is not
		  specified.

 RETURN VALUE
      Upon exit, crashutil returns the following values:

	   0	The operation was successful.
	   1	The operation failed, and an appropriate error message was
		printed.

 EXAMPLES
      An HP-UX 11.00 crash dump was saved by savecrash(1M) to
      /var/adm/crash/crash.2.  The -p flag was specified to savecrash,
      specifying that only those portions of the dump which were endangered
      by swap activity should be saved; the rest are still resident in the
      raw dump devices.	 To save the remainder of the dump into the crash
      dump directory, use:

	   crashutil /var/adm/crash/crash.2

      If preferred, the completed crash dump directory could be in a
      different location - perhaps on another machine via NFS:

	   crashutil /var/adm/crash/crash.2 /nfs/remote/otherdir

      To debug this crash dump using tools which do not understand the most
      current crash dump format, convert it to the older core directory
      format:





 Hewlett-Packard Company	    - 2 -   HP-UX Release 11i: November 2000






 crashutil(1M)						       crashutil(1M)




	   crashutil -v COREDIR /var/adm/crash/crash.2 /tmp/oldcoredir

      or the even older "core file and kernel" format:

	   crashutil -v COREFILE /var/adm/crash/crash.2 /tmp/corefile
	   /tmp/kernfile

 AUTHOR
      crashutil was developed by HP.

 SEE ALSO
      savecrash(1M).










































 Hewlett-Packard Company	    - 3 -   HP-UX Release 11i: November 2000