NULLFS(5)                 FreeBSD File Formats Manual                NULLFS(5)

NAME
     nullfs - null file system

SYNOPSIS
     To enable support for this driver, place the following line in the kernel
     configuration file:

           options NULLFS

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

           nullfs_load="YES"

DESCRIPTION
     The nullfs driver will permit the FreeBSD kernel to mount a loopback file
     system sub-tree.

EXAMPLES
     To mount a nullfs file system:

           mount_nullfs /usr/ports /home/devel/ports

SEE ALSO
     fstab(5), mount_nullfs(8)

HISTORY
     The nullfs layer first appeared in 4.4BSD.

AUTHORS
     The nullfs kernel implementation was written by John Heideman.

     This manual page was written by Daniel Gerzo <danger@FreeBSD.org>.

FreeBSD 13.1-RELEASE-p6        February 10, 2015       FreeBSD 13.1-RELEASE-p6