growfs8
Expand an existing ufs file system
Usage
growfs {[-Ny]
[-s
size]
special | filesystem}
Overview
The growfs utility makes it possible to expand an UFS file system. Before running growfs the partition or slice containing the file system must be extended using gpart(8). The growfs utility extends the size of the file system on the specified special file. 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. Size is the number of 512 byte sectors unless suffixed with a
b,k,m,g, ortwhich denotes byte, kilobyte, megabyte, gigabyte and terabyte respectively. This value defaults to the size of the raw partition specified in special (in other words,growfswill enlarge the file system to the size of the entire partition). -
-y -
Causes
growfsto assume yes as the answer to all operator questions.
Exit status
Exit status is 0 on success, and >= 1 on errors. Errors recoverable by user action are indicated by 2. OS errors, which are usually not recoverable, are indicated by 3 or greater.
Examples
Expand root file system to fill up available space:
growfs /
Refresh the LUN size, resize the partition to use all available capacity, and expand the filesystem accordingly:
camcontrol reprobe da0
gpart recover da0
gpart resize -i 1 da0
growfs /dev/da0p1
Caveats
When expanding a file system mounted read-write, any writes to that file system will be temporarily suspended until the expansion is finished.
Releases
65 releases since FreeBSD 4.4-RELEASE; the text changed 44 times.