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AUTOFS(4)		     Kernel Interfaces Manual		       AUTOFS(4)

NAME
     autofs -- automounter filesystem

SYNOPSIS
     To compile this driver into the kernel, place the following line in the
     kernel configuration file:

	   options AUTOFS

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):

	   autofs_load="YES"

DESCRIPTION
     The  autofs  driver  is the kernel component of the automounter infrastruc-
     ture.  Its job is to pass mount requests to the automountd(8)  daemon,  and
     pause  the  processes trying to access the automounted filesystem until the
     mount is completed.  It is mounted by the automount(8).

OPTIONS
     These options are available when mounting autofs file systems:

     master_options
	     Mount options for all filesystems specified in the map entry.

     master_prefix
	     Filesystem mountpoint prefix.

SYSCTL VARIABLES
     The following variables are  available  as  both  sysctl(8)  variables  and
     loader(8) tunables:

     vfs.autofs.debug
	     Verbosity	level for log messages from the autofs driver.	Set to 0
	     to disable logging or 1 to warn about potential  problems.   Larger
	     values enable debugging output.  Defaults to 1.

     vfs.autofs.interruptible
	     Set  to 1 to allow mount requests to be interrupted by signal.  De-
	     faults to 1.

     vfs.autofs.retry_delay
	     Number of seconds before retrying mount requests.	Defaults to 1.

     vfs.autofs.retry_attempts
	     Number of attempts before failing mount.  Defaults to 3.

     vfs.autofs.cache
	     Number of seconds to wait before reinvoking automountd(8)	for  any
	     given file or directory.  Defaults to 600.

     vfs.autofs.timeout
	     Number of seconds to wait for automountd(8) to handle the mount re-
	     quest.  Defaults to 30.

     vfs.autofs.mount_on_stat
	     Set to 1 to trigger mount on stat(2) on mountpoint.  Defaults to 0.

EXAMPLES
     To unmount all mounted autofs filesystems:

	   umount -At autofs

     To mount autofs filesystems specified in auto_master(5):

	   automount

SEE ALSO
     auto_master(5), automount(8), automountd(8), autounmountd(8)

HISTORY
     The autofs driver first appeared in FreeBSD 10.1.

AUTHORS
     The autofs was developed by Edward Tomasz Napierala <trasz@FreeBSD.org> un-
     der sponsorship from the FreeBSD Foundation.

FreeBSD ports 15.quarterly	December 2, 2017		       AUTOFS(4)

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