1.\" $NetBSD: resize_lfs.8,v 1.6 2009/03/11 13:35:21 joerg 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.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.Dd September 4, 2006 31.Dt RESIZE_LFS 8 32.Os 33.Sh NAME 34.Nm resize_lfs 35.Nd resize a mounted log-structured filesystem 36.Sh SYNOPSIS 37.Nm 38.Op Fl v 39.Op Fl s Ar new-size 40.Ar mounted-file-system 41.Sh DESCRIPTION 42.Nm 43grows or shrinks a mounted log-structured filesystem to the specified size. 44.Ar mounted-file-system 45is the name of the filesystem to be resized, and 46.Ar new-size 47is the desired new filesystem size, in sectors. 48If 49.Ar new-size 50is not specified, 51.Nm 52will default to the current size of the partition containing the filesystem 53in question. 54.Pp 55When growing, the partition must be large enough to contain a filesystem 56of the specified size; when shrinking, 57.Nm 58must first 59.Dq clean 60the segments that will be invalid when the filesystem is shrunk. 61If this cleaning process results in these segments becoming redirtied, 62this indicates that the given new size is not large enough to contain the 63existing filesystem data, and 64.Nm 65will return an error. 66.Sh EXAMPLES 67To resize the file system mounted at 68.Pa /home 69to 32576 sectors: 70.Dl resize_lfs -s 32576 /home 71.Sh SEE ALSO 72.Xr fsck_lfs 8 , 73.Xr lfs_cleanerd 8 , 74.Xr newfs_lfs 8 75.Sh HISTORY 76The 77.Nm 78command first appeared in 79.Nx 3.0 . 80.Sh AUTHORS 81.An Konrad Schroder 82.Aq perseant@NetBSD.org 83.Sh BUGS 84.Nm 85should be able to resize an unmounted filesystem as well. 86