109 lines
3.5 KiB
Groff
109 lines
3.5 KiB
Groff
.\" $NetBSD: mount_nilfs.8,v 1.4 2016/06/01 12:01:21 wiz Exp $
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.\"
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.\" Copyright (c) 2008, 2009 Reinoud Zandijk
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed for the
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.\" NetBSD Project. See http://www.NetBSD.org/ for
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.\" information about NetBSD.
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.\" 4. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
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.\"
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.Dd June 1, 2016
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.Dt MOUNT_NILFS 8
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.Os
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.Sh NAME
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.Nm mount_nilfs
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.Nd mount a NILFS file system
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.Sh SYNOPSIS
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.Nm
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.Op Fl c Ar checkpoint
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.Op Fl o Ar options
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.Op Fl t Ar gmtoff
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.Ar special
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.Ar node
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.Sh DESCRIPTION
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NILFS is a log-structured file system designed to support fast
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writing, fast recovery times, live snapshots, concurrent read-only
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snapshot mounts, and live file system resizing.
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Its inodes are managed using B-trees.
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.Pp
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The
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.Nm
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command attaches the NILFS file system residing on the specified
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.Ar special
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device node on the location indicated with
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.Ar node .
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.Pp
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.Bl -tag -width XXXoptions
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.It Fl c Ar checkpoint
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Select the checkpoint number
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.Ar checkpoint
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to be mounted instead of the default last one.
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.It Fl o Ar options
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Use the specified mount
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.Ar options
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as specified in
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.Xr mount 8 .
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.It Fl t Ar gmtoff
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Set the time zone offset (in seconds) from UTC to
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.Ar gmtoff ,
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with positive values indicating east of the Prime Meridian.
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If not set, the user's current time zone will be used.
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.El
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.Sh SEE ALSO
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.Xr mount 2 ,
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.Xr vnd 4 ,
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.Xr fstab 5 ,
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.Xr mount 8 ,
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.Xr mount_lfs 8 ,
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.Xr umount 8 ,
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.Xr vnconfig 8
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.Sh HISTORY
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NILFS is a file system developped by NTT and released in 2005 for
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Linux.
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Version 2 is available since 2009.
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This cleanroom implementation was written by
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.An -nosplit
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.An Reinoud Zandijk
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for
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.Nx
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in 2009, and has first been released as part of
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.Nx 6 .
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.Sh AUTHORS
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This implementation of NILFS was written by
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.An Reinoud Zandijk .
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.Sh CAVEATS
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This implementation currently only supports read-only operation.
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See
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.Xr mount_lfs 8
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for an older log-structured file system with write support.
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Also see
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.Xr wapbl 4
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and
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.Xr mount 8
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for fast journal-based recovery using FFS.
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