1.\" $NetBSD: mount_nilfs.8,v 1.4 2016/06/01 12:01:21 wiz Exp $ 2.\" 3.\" Copyright (c) 2008, 2009 Reinoud Zandijk 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed for the 17.\" NetBSD Project. See http://www.NetBSD.org/ for 18.\" information about NetBSD. 19.\" 4. The name of the author may not be used to endorse or promote products 20.\" derived from this software without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32.\" 33.\" <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>> 34.\" 35.Dd June 1, 2016 36.Dt MOUNT_NILFS 8 37.Os 38.Sh NAME 39.Nm mount_nilfs 40.Nd mount a NILFS file system 41.Sh SYNOPSIS 42.Nm 43.Op Fl c Ar checkpoint 44.Op Fl o Ar options 45.Op Fl t Ar gmtoff 46.Ar special 47.Ar node 48.Sh DESCRIPTION 49NILFS is a log-structured file system designed to support fast 50writing, fast recovery times, live snapshots, concurrent read-only 51snapshot mounts, and live file system resizing. 52Its inodes are managed using B-trees. 53.Pp 54The 55.Nm 56command attaches the NILFS file system residing on the specified 57.Ar special 58device node on the location indicated with 59.Ar node . 60.Pp 61.Bl -tag -width XXXoptions 62.It Fl c Ar checkpoint 63Select the checkpoint number 64.Ar checkpoint 65to be mounted instead of the default last one. 66.It Fl o Ar options 67Use the specified mount 68.Ar options 69as specified in 70.Xr mount 8 . 71.It Fl t Ar gmtoff 72Set the time zone offset (in seconds) from UTC to 73.Ar gmtoff , 74with positive values indicating east of the Prime Meridian. 75If not set, the user's current time zone will be used. 76.El 77.Sh SEE ALSO 78.Xr mount 2 , 79.Xr vnd 4 , 80.Xr fstab 5 , 81.Xr mount 8 , 82.Xr mount_lfs 8 , 83.Xr umount 8 , 84.Xr vnconfig 8 85.Sh HISTORY 86NILFS is a file system developped by NTT and released in 2005 for 87Linux. 88Version 2 is available since 2009. 89This cleanroom implementation was written by 90.An -nosplit 91.An Reinoud Zandijk 92for 93.Nx 94in 2009, and has first been released as part of 95.Nx 6 . 96.Sh AUTHORS 97This implementation of NILFS was written by 98.An Reinoud Zandijk . 99.Sh CAVEATS 100This implementation currently only supports read-only operation. 101See 102.Xr mount_lfs 8 103for an older log-structured file system with write support. 104Also see 105.Xr wapbl 4 106and 107.Xr mount 8 108for fast journal-based recovery using FFS. 109