NAME
growfs
—
grow size of an existing ffs file
system
SYNOPSIS
growfs |
[-Nqy ] [-s
size] special |
DESCRIPTION
The growfs
utility extends the
newfs(8)
program. Before starting growfs
, the partition must
be set to a larger size using
disklabel(8). The growfs
utility extends the
size of the file system on the specified special file.
Currently growfs
can only enlarge
unmounted file systems. Do not try enlarging a mounted file system - your
system may panic and you will not be able to use the file system any longer.
Most of the newfs(8) options cannot be changed by growfs
.
In fact, you can only increase the size of the file system. Use
tunefs(8)
for other changes.
The following options are available:
-N
- Test mode. Causes the new file system parameters to be printed out without actually enlarging the file system.
-q
- Operate in quiet mode. With this option,
growfs
will not print extraneous information like superblock backups. -s
size- Determines the size of the file system after
enlarging in sectors. This value defaults to the size of the raw partition
specified in special (in other words,
growfs
will enlarge the file system to the size of the entire partition). -y
- Expert mode. Usually
growfs
will ask you if you have taken a backup of your data and will test whether special is currently mounted. The-y
flag suppresses this, so use this option with great care!
ENVIRONMENT
COLUMNS
- If set to a positive integer, output is formatted to the given width in
columns. Otherwise,
growfs
defaults to the terminal width, or 80 columns if the output is not a terminal.
SEE ALSO
disklabel(8), dumpfs(8), fdisk(8), fsck(8), newfs(8), tunefs(8)
HISTORY
The growfs
utility first appeared in
FreeBSD 4.4 and has been available since
OpenBSD 3.4.
AUTHORS
Christoph Herrmann
<chm@FreeBSD.org>
Thomas-Henning von Kamptz
<tomsoft@FreeBSD.org>
and the growfs
team
<growfs@tomsoft.com>
BUGS
Filesystems must be checked with fsck(8) after enlarging.