NAME
unionfs – union mount file system
SYNOPSIS
option UNIONFS
In loader.conf(5): unionfs_load="YES"
DESCRIPTION
The UNIONFS driver is an implementation of a stackable unification filesystem.
SEE ALSO
STANDARDS
J. S. Pendry and M. K. McKusick, Union mounts in 4.4BSD-Lite, Proceedings of the USENIX Technical Conference on UNIX and Advanced Computing Systems, December 1995.
P. H. Kamp and R. N. M. Watson, Jails: Confining the omnipotent root, Proceedings of the Second International System Administration and Networking Conference (SANE2000), May 2000.
HISTORY
The unionfs device driver first appeared in FreeBSD 5.0.
AUTHORS
The unionfs device driver was written by Jan-Simon Pendry for 4.4BSD and Masanori OZAWA ⟨[email protected]⟩ reimplemented the handling of the locking for FreeBSD 7.0. The manual page was written by Gordon Bergling ⟨[email protected]⟩.
BUGS
Please see the mount_unionfs(8) manual page for a list of bugs regarding the unionfs filesystem.