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REBOOT(8)		FreeBSD	System Manager's Manual		     REBOOT(8)

NAME
     reboot, halt, fastboot, fasthalt -- stopping and restarting the system

SYNOPSIS
     halt [-lnpq] [-k kernel]
     reboot [-dlnpq] [-k kernel]
     fasthalt [-lnpq] [-k kernel]
     fastboot [-dlnpq] [-k kernel]

DESCRIPTION
     The halt and reboot utilities flush the file system cache to disk,	send
     all running processes a SIGTERM (and subsequently a SIGKILL) and, respec-
     tively, halt or restart the system.  The action is	logged,	including
     entering a	shutdown record	into the wtmp(5) file.

     The options are as	follows:

     -d	     The system	is requested to	create a crash dump.  This option is
	     supported only when rebooting, and	it has no effect unless	a dump
	     device has	previously been	specified with dumpon(8).

     -k	kernel
	     Boot the specified	kernel on the next system boot.	 If the	kernel
	     boots successfully, the default kernel will be booted on succes-
	     sive boots, this is a one-shot option.  If	the boot fails,	the
	     system will continue attempting to	boot kernel until the boot
	     process is	interrupted and	a valid	kernel booted.	This may
	     change in the future.

     -l	     The halt or reboot	is not logged to the system log.  This option
	     is	intended for applications such as shutdown(8), that call
	     reboot or halt and	log this themselves.

     -n	     The file system cache is not flushed.  This option	should proba-
	     bly not be	used.

     -p	     The system	will turn off the power	if it can.  If the power down
	     action fails, the system will halt	or reboot normally, depending
	     on	whether	halt or	reboot was called.

     -q	     The system	is halted or restarted quickly and ungracefully, and
	     only the flushing of the file system cache	is performed (if the
	     -n	option is not specified).  This	option should probably not be
	     used.

     The fasthalt and fastboot utilities are nothing more than aliases for the
     halt and reboot utilities.

     Normally, the shutdown(8) utility is used when the	system needs to	be
     halted or restarted, giving users advance warning of their	impending doom
     and cleanly terminating specific programs.

SEE ALSO
     wtmp(5), boot(8), dumpon(8), nextboot(8), savecore(8), shutdown(8),
     sync(8)

HISTORY
     A reboot utility appeared in Version 6 AT&T UNIX.

FreeBSD	9.2			 June 9, 1993			   FreeBSD 9.2

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY

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