1.\" $NetBSD: resize_lfs.8,v 1.5 2008/04/30 13:10:53 martin 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.Sh NAME 33.Nm resize_lfs 34.Nd resize a mounted log-structured filesystem 35.Sh SYNOPSIS 36.Nm 37.Op Fl v 38.Op Fl s Ar new-size 39.Ar mounted-file-system 40.Sh DESCRIPTION 41.Nm 42grows or shrinks a mounted log-structured filesystem to the specified size. 43.Ar mounted-file-system 44is the name of the filesystem to be resized, and 45.Ar new-size 46is the desired new filesystem size, in sectors. 47If 48.Ar new-size 49is not specified, 50.Nm 51will default to the current size of the partition containing the filesystem 52in question. 53.Pp 54When growing, the partition must be large enough to contain a filesystem 55of the specified size; when shrinking, 56.Nm 57must first 58.Dq clean 59the segments that will be invalid when the filesystem is shrunk. 60If this cleaning process results in these segments becoming redirtied, 61this indicates that the given new size is not large enough to contain the 62existing filesystem data, and 63.Nm 64will return an error. 65.Sh EXAMPLES 66To resize the file system mounted at 67.Pa /home 68to 32576 sectors: 69.Dl resize_lfs -s 32576 /home 70.Sh SEE ALSO 71.Xr fsck_lfs 8 , 72.Xr lfs_cleanerd 8 , 73.Xr newfs_lfs 8 74.Sh HISTORY 75The 76.Nm 77command first appeared in 78.Nx 3.0 . 79.Sh AUTHORS 80.An Konrad Schroder 81.Aq perseant@NetBSD.org 82.Sh BUGS 83.Nm 84should be able to resize an unmounted filesystem as well. 85