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+.\" Copyright (c) 1993, 1994
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)mount_lfs.8	8.5 (Berkeley) 3/30/94
+.\"
+.Dd "March 30, 1994"
+.Dt MOUNT_LFS 8
+.Os BSD 4.4
+.Sh NAME
+.Nm mount_lfs
+.Nd mount a log-structured file system
+.Sh SYNOPSIS
+.Nm mount_lfs
+.Op Fl dns
+.Op Fl o Ar options
+.Ar special
+.Ar node
+.Sh DESCRIPTION
+The
+.Nm mount_lfs
+command attaches a log-structured file system
+.Ar special
+device on to the file system tree at the point
+.Ar node .
+In addition, the
+.Xr lfs_cleanerd 8
+utility is invoked to clean the file system periodically.
+.Pp
+This command is normally executed by
+.Xr mount 8
+at boot time.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl d
+Run
+.Xr lfs_cleanerd 8
+in debug mode.
+.It Fl o
+Options are specified with a
+.Fl o
+flag followed by a comma separated string of options.
+See the
+.Xr mount 8
+man page for possible options and their meanings.
+.It Fl n
+Don't start
+.Xr lfs_cleanerd 8
+on the file system.
+.It Fl s
+Cause
+.Xr lfs_cleanerd 8
+to read data in small chunks when cleaning the file system.
+.El
+.Sh SEE ALSO
+.Xr mount 2 ,
+.Xr unmount 2 ,
+.Xr fstab 5 ,
+.Xr lfs_cleanerd 8 ,
+.Xr mount 8
+.sp
+.Rs
+.%A Ousterhout and Douglis
+.%D 1989
+.%T "Beating the I/O Bottleneck: A Case for Log-structured File Systems"
+.%J "Operating Systems Review"
+.%V Vol. 23
+.%N No. 1
+.%P pp. 11-27
+.%O "also available as Technical Report UCB/CSD 88/467"
+.Re
+.Rs
+.%A Rosenblum and Ousterhout
+.%D 1991
+.%T "The Design and Implementation of a Log-Structured File System"
+.%J "ACM SIGOPS Operating Systems Review"
+.%V Vol. 25
+.%N No. 5
+.Re
+.Rs
+.%A Seltzer
+.%D 1992
+.%T "File System Performance and Transaction Support"
+.%B "PhD Thesis, University of California, Berkeley"
+.%O "also available as Technical Report UCB/ERL M92"
+.Re
+.Rs
+.%A Seltzer, Bostic, McKusick and Staelin
+.%D 1993
+.%T "An Implementation of a Log-Structured File System for UNIX"
+.%J "Proc. of the Winter 1993 USENIX Conf."
+.%P pp. 315-331
+.Re
+.Sh HISTORY
+The
+.Nm mount_lfs
+function first appeared in 4.4BSD.