1 .\" Copyright (c) 2000 Christoph Herrmann, Thomas-Henning von Kamptz
2 .\" Copyright (c) 1980, 1989, 1993 The Regents of the University of California.
3 .\" All rights reserved.
5 .\" This code is derived from software contributed to Berkeley by
6 .\" Christoph Herrmann and Thomas-Henning von Kamptz, Munich and Frankfurt.
8 .\" Redistribution and use in source and binary forms, with or without
9 .\" modification, are permitted provided that the following conditions
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13 .\" 2. Redistributions in binary form must reproduce the above copyright
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18 .\" This product includes software developed by the University of
19 .\" California, Berkeley and its contributors, as well as Christoph
20 .\" Herrmann and Thomas-Henning von Kamptz.
21 .\" 4. Neither the name of the University nor the names of its contributors
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37 .\" $TSHeader: src/sbin/growfs/growfs.8,v 1.3 2000/12/12 19:31:00 tomsoft Exp $
45 .Nd expand an existing UFS file system
50 .Ar special | filesystem
54 utility makes it possible to expand an UFS file system.
57 the partition or slice containing the file system must be extended using
59 If you are using volumes you must enlarge them by using
63 utility extends the size of the file system on the specified special file.
64 The following options are available:
65 .Bl -tag -width indent
68 Causes the new file system parameters to be printed out without actually
69 enlarging the file system.
74 as the answer to all operator questions.
78 of the file system after enlarging in sectors.
80 is the number of 512 byte sectors unless suffixed with a
85 denotes byte, kilobyte, megabyte, gigabyte and terabyte respectively.
86 This value defaults to the size of the raw partition specified in
90 will enlarge the file system to the size of the entire partition).
93 Expand root file system to fill up available space:
96 Refresh the LUN size, resize the partition to use all available
97 capacity, and expand the filesystem accordingly:
98 .Dl camcontrol reprobe da0
100 .Dl gpart resize -i 1 da0
101 .Dl growfs /dev/da0p1
112 utility first appeared in
114 The ability to resize mounted file systems was added in
117 .An Christoph Herrmann Aq Mt chm@FreeBSD.org
118 .An Thomas-Henning von Kamptz Aq Mt tomsoft@FreeBSD.org
119 .An The GROWFS team Aq Mt growfs@Tomsoft.COM
120 .An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org
122 When expanding a file system mounted read-write, any writes to that file system
123 will be temporarily suspended until the expansion is finished.
127 writes cylinder group summary to disk and reads it again later for doing more
129 This read operation will provide unexpected data when using
131 Therefore, this part cannot really be simulated and will be skipped in test