1.\" $NetBSD: resize_lfs.8,v 1.4 2006/09/04 18:34:42 wiz Exp $ 2.\" 3.\" Copyright (c) 2005 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Konrad E. Schroder <perseant@hhhh.org>. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the NetBSD 20.\" Foundation, Inc. and its contributors. 21.\" 4. Neither the name of The NetBSD Foundation nor the names of its 22.\" contributors may be used to endorse or promote products derived 23.\" from this software without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35.\" POSSIBILITY OF SUCH DAMAGE. 36.\" 37.Dd September 4, 2006 38.Dt RESIZE_LFS 8 39.Sh NAME 40.Nm resize_lfs 41.Nd resize a mounted log-structured filesystem 42.Sh SYNOPSIS 43.Nm 44.Op Fl v 45.Op Fl s Ar new-size 46.Ar mounted-file-system 47.Sh DESCRIPTION 48.Nm 49grows or shrinks a mounted log-structured filesystem to the specified size. 50.Ar mounted-file-system 51is the name of the filesystem to be resized, and 52.Ar new-size 53is the desired new filesystem size, in sectors. 54If 55.Ar new-size 56is not specified, 57.Nm 58will default to the current size of the partition containing the filesystem 59in question. 60.Pp 61When growing, the partition must be large enough to contain a filesystem 62of the specified size; when shrinking, 63.Nm 64must first 65.Dq clean 66the segments that will be invalid when the filesystem is shrunk. 67If this cleaning process results in these segments becoming redirtied, 68this indicates that the given new size is not large enough to contain the 69existing filesystem data, and 70.Nm 71will return an error. 72.Sh EXAMPLES 73To resize the file system mounted at 74.Pa /home 75to 32576 sectors: 76.Dl resize_lfs -s 32576 /home 77.Sh SEE ALSO 78.Xr fsck_lfs 8 , 79.Xr lfs_cleanerd 8 , 80.Xr newfs_lfs 8 81.Sh HISTORY 82The 83.Nm 84command first appeared in 85.Nx 3.0 . 86.Sh AUTHORS 87.An Konrad Schroder 88.Aq perseant@NetBSD.org 89.Sh BUGS 90.Nm 91should be able to resize an unmounted filesystem as well. 92