SAVECORE(8)							  SAVECORE(8)



NAME
       savecore - save a diskdump image.

SYNOPSIS
       savecore [ -D ] [ -f ] [ -p ] [ -P flags ] [ -v ] [ -X ] device

       savecore -V

DESCRIPTION
       savecore	 reads	data  from  the	 disk dump partition specified by the
       device argument, and creates  a	vmcore	file  in  a  directory	named
       /var/crash/127.0.0.1-  timestamp.  The timestamp portion of the direc-
       tory name indicates the date and time when system crash occurred.  The
       vmcore file can be analyzed by the crash(8) utility.  savecore returns
       1 if it fails due to an error.  Otherwise it returns 0.

OPTIONS
       -D     Delete dump from the dump partition after saved.

       -f     Create a vmcore file forcibly even if dump directory exists.

       -p     Display progress for creating a vmcore file.

       -P flags
	      Specify the value of page flags.	If the	some  flags  of	 page
	      have  been  matched with the specified value, the page is saved
	      in vmcore with uncompressed data.	  This	option	is  effective
	      only when dump compression is used.

       -v     Provide some verbose outputs.

       -V     Show version information and exit.

       -X     Delete  dump from the dump partition without saving panic dump.



FILES
       /var/crash
	      The main directory where the crash dump files are stored.	 Each
	      dump  is	put in a subdirectory whose name consists of the con-
	      catenation of "127.0.0.1" and the date and time of the crash.

       /var/crash/scripts
	      This directory can contain scripts  that	are  run  at  various
	      times.   They  all  get passed the ip of 127.0.0.1 as the first
	      argument, and each one gets the directory that the dump file is
	      written to as the second argument.

	      diskdump-nospace	-  This	 is run when there is not enough disk
	      space for the dump of the	 crashed  machine.   If	 this  script
	      exits  with  a  non-zero	return	value, savecore will try once
	      again (but only once) before giving up on the  dump.   If	 this
	      script exits with a zero return value, savecore will exit with-
	      out performing a dump.  The default script simply sends a	 mail
	      message  and exits with a zero value, but it can be enhanced to
	      try to free up diskspace and return a non-zero value.

	      diskdump-success - This is run after a dump  file	 is  created,
	      which could be used to email the system administrator, gzip the
	      dump file, and so on.  The default script simply sends  a	 mail
	      message and exits with a zero value.


SEE ALSO
       diskdumpctl_proc(8), diskdumpctl_sysfs(8), diskdumpfmt(8), crash(8)




								  SAVECORE(8)

UNIX/Linux commands referenced on this page:

1. dump
2. date
3. time
4. crash
5. file
6. at
7. ip
8. as
9. script
10. free
11. which
12. gzip