growfs(8) [freebsd man page]

GROWFS(8)						    BSD System Manager's Manual 						 GROWFS(8)

NAME

     growfs -- expand an existing UFS file system

SYNOPSIS

     growfs [-Ny] [-s size] special | filesystem

DESCRIPTION

     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).  If you are using volumes you must enlarge them by using gvinum(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.

     -y      ``Expert mode''.  Usually growfs will ask you if you took a backup of your data before and will do some tests whether special is cur-
	     rently mounted or whether there are any active snapshots on the file system specified.  This will be suppressed.  So use this option
	     with great care!

     -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, or t which denotes byte, kilobyte, megabyte, gigabyte and terabyte respectively.	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).

EXAMPLES

     Expand root file system to fill up available space:
	   growfs /

     Resize /dev/ada0p1 partition to 2GB and expand the file system:
	   gpart resize -i 1 -s 2G ada0
	   growfs -s 2G /dev/ada0p1

SEE ALSO

     dumpfs(8), ffsinfo(8), fsck(8), fsdb(8), gpart(8), newfs(8), tunefs(8)

HISTORY

     The growfs utility first appeared in FreeBSD 4.4.	The ability to resize mounted file systems was added in FreeBSD 10.0.

AUTHORS

     Christoph Herrmann <chm@FreeBSD.org>
     Thomas-Henning von Kamptz <tomsoft@FreeBSD.org>
     The GROWFS team <growfs@Tomsoft.COM>
     Edward Tomasz Napierala <trasz@FreeBSD.org>

CAVEATS

     When expanding a file system mounted read-write, any writes to that file system will be temporarily suspended until the expansion is fin-
     ished.

BUGS

     Normally growfs writes cylinder group summary to disk and reads it again later for doing more updates.  This read operation will provide
     unexpected data when using -N.  Therefore, this part cannot really be simulated and will be skipped in test mode.

BSD
								 November 20, 2014							       BSD

Check Out this Related Man Page

FFSINFO(8)						    BSD System Manager's Manual 						FFSINFO(8)

NAME

     ffsinfo -- dump all meta information of an existing ufs file system

SYNOPSIS

     ffsinfo [-g cylinder_group] [-i inode] [-l level] [-o outfile] special | file

DESCRIPTION

     The ffsinfo utility extends the dumpfs(8) utility.

     The output is appended to the file outfile.  Also expect the output file to be rather large.  Up to 2 percent of the size of the specified
     file system is not uncommon.

     The following options are available:

     -g cylinder_group
	     This restricts the dump to information about this cylinder group only.  Here 0 means the first cylinder group and -1 the last one.

     -i inode
	     This restricts the dump to information about this particular inode only.  Here the minimum acceptable inode is 2.	If this option is
	     omitted but a cylinder group is defined then only inodes within that cylinder group are dumped.

     -l level
	     The level of detail which will be dumped.	This value defaults to 255 and is the ``bitwise or'' of the following table:

	     0x001   initial superblock
	     0x002   superblock copies in each cylinder group
	     0x004   cylinder group summary in initial cylinder group
	     0x008   cylinder group information
	     0x010   inode allocation bitmap
	     0x020   fragment allocation bitmap
	     0x040   cluster maps and summary
	     0x100   inode information
	     0x200   indirect block dump

     -o outfile
	     This sets the output filename where the dump is written to, and must be specified.  If - is provided, output will be sent to stdout.

EXAMPLES

	   ffsinfo -o /var/tmp/ffsinfo -l 1023 /dev/vinum/testvol

     will dump /dev/vinum/testvol to /var/tmp/ffsinfo with all available information.

SEE ALSO

     disklabel(8), dumpfs(8), fsck(8), growfs(8), newfs(8), tunefs(8), vinum(8)

HISTORY

     The ffsinfo utility first appeared in FreeBSD 4.4.

AUTHORS

     Christoph Herrmann <chm@FreeBSD.org>
     Thomas-Henning von Kamptz <tomsoft@FreeBSD.org>
     The GROWFS team <growfs@Tomsoft.COM>

BUGS

     Snapshots are handled like plain files.  They should get their own level to provide for independent control of the amount of what gets
     dumped.  It probably also makes sense to some extend to dump the snapshot as a file system.

BSD
								 September 8, 2000							       BSD

Linux and UNIX Man Pages

growfs(8) [freebsd man page]

Check Out this Related Man Page