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DELAY.4TH(8)		  BSD System Manager's Manual		  DELAY.4TH(8)

NAME
     delay.4th -- FreeBSD debugging boot module

DESCRIPTION
     The file that goes	by the name of delay.4th is a set of commands designed
     to	add debugging capabilities to loader(8).  The commands of delay.4th by
     themselves	are not	enough for most	uses.  Please refer to the examples
     below for the most	common situations, and to loader(8) for	additional
     commands.

     Before using any of the commands provided in delay.4th, it	must be	in-
     cluded through the	command:

	   include delay.4th

     This line is present in /boot/beastie.4th file, so	it is not needed (and
     should not	be re-issued) in a normal setup.

     The commands provided by it are:

	   delay_execute	  Executes the [string]	procedure stored in
				  the delay_command environment	variable after
				  loader_delay seconds.

				  If the optional delay_showdots environment
				  variable is set, a continuous	series of dots
				  is printed.

				  During the duration, the user	can either
				  press	Ctrl-C (or Esc)	to abort or ENTER to
				  proceed immediately.

     The environment variables that effect its behavior	are:

	   delay_command
		     The command to be executed	by delay_execute.

	   loader_delay
		     The duration (in seconds) to delay	before executing
		     delay_command.

	   delay_showdots
		     If	set, will cause	delay_execute to print a continuous
		     series of dots during the delay duration.

FILES
     /boot/loader      The loader(8).
     /boot/delay.4th   delay.4th itself.
     /boot/loader.rc   loader(8) bootstrapping script.

EXAMPLES
     Introducing a 5-second delay before including another file	from
     /boot/loader.rc:

	   include /boot/delay.4th
	   set delay_command="include /boot/other.4th"
	   set delay_showdots
	   set loader_delay=5
	   delay_execute

SEE ALSO
     loader.conf(5), beastie.4th(8), loader(8),	loader.4th(8)

HISTORY
     The delay.4th set of commands first appeared in FreeBSD 9.0.

AUTHORS
     The delay.4th set of commands was written by Devin	Teske
     <dteske@FreeBSD.org>.

BSD				 May 18, 2011				   BSD

NAME | DESCRIPTION | FILES | EXAMPLES | SEE ALSO | HISTORY | AUTHORS

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