size of an existing ffs file system
utility extends the
program. Before starting
, the partition must be set to a larger
size using disklabel(8)
utility extends the size of the file
system on the specified special file.
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
options cannot be
changed by growfs
. In fact, you can only increase
the size of the file system. Use
for other changes.
The following options are available:
- Test mode. Causes the new file system parameters to be
printed out without actually enlarging the file system.
- Operate in quiet mode. With this option,
growfs will not print extraneous information
like superblock backups.
- 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).
- 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!
- 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
utility first appeared in
and has been available since
Thomas-Henning von Kamptz
and the growfs
Filesystems must be checked with