UNIONFS(4) Kernel Interfaces Manual UNIONFS(4) NAME unionfs -- union mount file system SYNOPSIS To compile this driver into the kernel, place the following lines in your kernel configuration file: option UNIONFS Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): unionfs_load="YES" DESCRIPTION The UNIONFS driver is an implementation of a stackable unification filesys- tem. SEE ALSO mount_unionfs(8) 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, Pro- ceedings 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 <ozawa@ongs.co.jp> reimplemented the handling of the locking for FreeBSD 7.0. The manual page was written by Gordon Bergling <gbe@FreeBSD.org>. BUGS Please see the mount_unionfs(8) manual page for a list of bugs regarding the unionfs filesystem. FreeBSD 15.1 April 27, 2020 UNIONFS(4)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | STANDARDS | HISTORY | AUTHORS | BUGS
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