Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
KLDCONFIG(8)		  BSD System Manager's Manual		  KLDCONFIG(8)

NAME
     kldconfig -- display or modify the	kernel module search path

SYNOPSIS
     kldconfig [-dfimnUv] [-S sysctlname] [path	...]
     kldconfig -r

DESCRIPTION
     The kldconfig utility displays or modifies	the search path	used by	the
     kernel when loading modules using the kldload(8) utility or the
     kldload(2)	syscall.

     The following options are available:

     -d	     Remove the	specified paths	from the module	search path.

     -f	     Do	not fail if a path specified for adding	is already present in
	     the search	path, or if a path specified for removing is not
	     present in	the search path.  This may be useful in	startup/shut-
	     down scripts for adding a path to a file system which is still
	     not mounted, or in	shutdown scripts for unconditionally removing
	     a path that may have been added during startup.

     -i	     Add the specified paths to	the beginning of the search path, not
	     to	the end.  This option can only be used when adding paths.

     -m	     Instead of	replacing the module search path with the set of paths
	     specified,	"merge"	in the new entries.

     -n	     Do	not actually change the	module search path.

     -r	     Display the current search	path.  This option cannot be used if
	     any paths are also	specified.

     -S	sysctlname
	     Specify the sysctl	name to	use instead of the default
	     kern.module_path.

     -U	     "Unique-ify" the current search path - if any of the directories
	     is	repeated one or	more times, only the first occurrence remains.
	     This option implies -m.

     -v	     Verbose output: display the new module search path.  If the path
	     has been changed, and the -v flag is specified more than once,
	     the old path is displayed as well.

FILES
     /boot/kernel, /boot/modules, /modules
	     The default module	search path used by the	kernel.

EXIT STATUS
     The kldconfig utility exits 0 on success, and >0 if an error occurs.

EXAMPLES
     Show the module search path

	   $ kldconfig -r
	   /boot/kernel;/boot/modules;/boot/dtb;/boot/dtb/overlays

     Try to delete the /boot directory from the	search path.  The command will
     fail:

	   $ kldconfig -d /boot
	   kldconfig: not in module search path: /boot
	   $ echo $?
	   1

     Same as above but forcing the operation.  This time the command will suc-
     ceed:

	   $ kldconfig -d -f /boot
	   $ echo $?
	   0

     Add the /boot directory to	the beginning of the search path and display
     extra verbose output:

	   $ kldconfig -i -m -vv /boot
	   /boot/kernel;/boot/modules -> /boot;/boot/kernel;/boot/modules

     Without -m	the -i flag will overwrite the contents	of the search path
     list:

	   $ kldconfig -i -vv /boot
	   /boot;/boot/kernel;/boot/modules;/boot/dtb;/boot/dtb/overlays -> /boot

     Same as above but using -n	to simulate the	operation without actually do-
     ing it:

	   $ kldconfig -i -n -vv /boot
	   /boot;/boot/kernel;/boot/modules;/boot/dtb;/boot/dtb/overlays -> /boot

     Add directories to	the search path	removing duplicates.  Note the need of
     -f	to force the operation in case any of the directories is already in
     the search	path.  The /boot/kernel	directory will be added	once:

	   $ kldconfig -f -U /boot/kernel /boot/kernel /boot/modules /boot/dtb /boot/dtb/overlays

SEE ALSO
     kldload(2), kldload(8), kldxref(8), sysctl(8)

HISTORY
     The kldconfig utility first appeared in FreeBSD 4.4.

AUTHORS
     Peter Pentchev <roam@FreeBSD.org>

BSD			      September	29, 2020			   BSD
NAME | SYNOPSIS | DESCRIPTION | FILES | EXIT STATUS | EXAMPLES | SEE ALSO | HISTORY | AUTHORS

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=kldconfig&sektion=8&manpath=FreeBSD+13.0-RELEASE+and+Ports>

home | help