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Manual Pages  — NULLFS

NAME

nullfs – null file system

CONTENTS

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

It is also possible to define an entry in fstab(5) that looks similar to: 

/usr/ports      /home/devel/ports       nullfs          rw      0       0

SEE ALSO

fstab(5), mount_nullfs(8)

HISTORY

The nullfs layer first appeared in BSD 4.4 .

AUTHORS

The nullfs kernel implementation was written by John Heideman.

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

NULLFS (5) March 15, 2022
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