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RedHat 9 (Linux i386) - man page for resize_reiserfs (redhat section 8)

RESIZE_REISERFS(8)		     System Manager's Manual		       RESIZE_REISERFS(8)

       resize_reiserfs - Reiserfs filesystem resizer

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

       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 spec-
       ified, 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 opera-
       tion 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 an 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

       -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).

       0    Resizing successful.

       -1   In another case.

       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

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

       Note that this is a BETA program and may corrupt filesystems.

       This  version  of   resize_reiserfs   has   been   written   by	 Alexander   Zarochentcev

       Please,	report	about  the  bugs  to  Alexander Zarochentcev <zam@namesys.com> or to Hans
       Reiser <reiser@namesys.com>.

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

Reiserfsprogs-3.6.4			   January 2002 		       RESIZE_REISERFS(8)

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