NAME

       resize_reiserfs - resizer tool for the ReiserFS filesystem

SYNOPSIS

       resize_reiserfs [ -s [+|-]size[K|M|G] ] [ -j dev ] [ -fqv ] device

DESCRIPTION

       The  resize_reiserfs  tool resizes an unmounted reiserfs file system.  It enlarges or shrinks an reiserfs
       file system located on a device so that it will have size bytes or size=old_size +(-) size bytes if the +
       or - prefix is used.  If the -s option is not specified, the filesystem will be resized to fill the given
       device.  The size parameter may have one of the  optional  modifiers  K,  M,  G,  which  means  the  size
       parameter is given in kilo-, mega-, gigabytes respectively.

       The  resize_reiserfs  program  does  not  manipulate  the  size  of  the device. If you wish to enlarge a
       filesystem, you must make sure you expand the underlying device first. This can be done  using  cfdisk(8)
       for  partitions,  by  deleting the partition and recreating it with a larger size (assuming there is free
       space after the partition in question).  Make sure you re-create it with the same starting disk  cylinder
       as  before!   Otherwise,  the  resize  operation  will  certainly  not work, and you may lose your entire
       filesystem.

       The resize_reiserfs program allows to grow a reiserfs on-line if there is a free space on block device.

       If you wish to shrink a reiserfs partition, first use resize_reiserfs to shrink the file system. You  may
       then use cfdisk(8) to shrink the device. When shrinking the size of the device, make sure you do not make
       it smaller than the reduced size of the reiserfs filesystem.

OPTIONS

       -s [+|-]size
              Set the new size in bytes.

       -j dev Set the journal device name.

       -f     Force, do not perform checks.

       -q     Do not print anything but error messages.

       -v     Turn on extra progress status messages (default).

RETURN VALUES

       0    Resizing successful.

       -1   Resizing not successful.

EXAMPLES

       The  following  example shows how to test resize_reiserfs.  Suppose 2Gb reiserfs filesystem is created on
       the device /dev/hda8 and is mounted on /mnt.  For shrinking the device we need to unmount it first,  then
       run resize_reiserfs with a size  parameter (in this case -1Gb):

            df
            umount /mnt
            resize_reiserfs -s -1G /dev/hda8
            mount /dev/hda8 /mnt
            df /mnt

AUTHOR

       This version of resize_reiserfs has been written by Alexander Zarochentcev <zam@namesys.com>.

BUGS

       Please  report  bugs  to  the  ReiserFS  developers  <reiserfs-devel@vger.kernel.org>,  providing as much
       information as possible--your hardware, kernel, patches, settings, all printed messages; check the syslog
       file for any related information.

SEE ALSO

       cfdisk(8), reiserfsck(8), debugreiserfs(8)

Reiserfsprogs-3.6.27                              January 2009                                RESIZE_REISERFS(8)