growfs - grow size of an existing ffs file system
growfs [-Ny] [-s size] special
The growfs utility extends the newfs(8) program. Before
the partition must be set to a larger size using disklabel(8). The
growfs utility extends the size of the file system on the
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
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.
-s size Determines the size of the file system after enlarging in sectors.
This value defaults to the size of the raw
specified in special (in other words, growfs will
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
mounted. The -y flag suppresses this, so use
this option with
disklabel(8), dumpfs(8), fdisk(8), fsck(8), newfs(8),
The growfs utility first appeared in FreeBSD 4.4.
Christoph Herrmann <chm@FreeBSD.org>
Thomas-Henning von Kamptz <tomsoft@FreeBSD.org>
The GROWFS team <growfs@Tomsoft.COM>
It is recommended to always use fsck(8) after enlarging
(just to be on
the safe side).
OpenBSD 3.6 September 8, 2000
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