redhat man page for resize2fs

RESIZE2FS(8)						      System Manager's Manual						      RESIZE2FS(8)

NAME
       resize2fs - ext2 file system resizer

SYNOPSIS
       resize2fs [ -d debug-flags ] [ -f ] [ -F ] [ -p ] device [ size ]

DESCRIPTION
       The  resize2fs program will resize ext2 file systems.  It can be used to enlarge or shrink an ext2 file system located on device so that it
       will have size blocks.  If the size parameter is not specified, it will default to the size of the partition.  The size parameter may never
       be larger than the size of the partition.

       The  resize2fs  program	does not manipulate the size of partitions.  If you wish to enlarge a filesystem, you must first make sure you can
       expand the size of the underlying partition first.  This can be done using fdisk(8) by deleting the partition  and  recreating  it  with  a
       larger size.  When recreating the partition, make sure you 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.

       If you wish to shrink an ext2 partition, first use resize2fs to shrink the size of filesystem.  Then you may use  fdisk(8)  to  shrink  the
       size  of  the  partition.   When  shrinking  the  size of the partition, make sure you do not make it smaller than the new size of the ext2
       filesystem!

OPTIONS
       -d debug-flags
	      Turns on various resize2fs debugging features, if they have been compiled into the binary.  debug-flags should be computed by adding
	      the numbers of the desired features from the following list:
		   1	- Print out all disk I/O
		   2	- Debug block relocations
		   8	- Debug inode relocations
		   16	- Debug moving the inode table

       -p     Prints out a percentage completion bars for each resize2fs operation, so that the user can keep track of what the program is doing.

       -f     Forces resize2fs to proceed with the filesystem resize operation, overriding some safety checks which resize2fs normally enforces.

       -F     Flush the filesystem device's buffer caches before beginning.  Only really useful for doing resize2fs time trials.

AUTHOR
       resize2fs was written by Theodore Ts'o <tytso@mit.edu>.

COPYRIGHT
       Resize2fs  is  Copyright 1998 by Theodore Ts'o and PowerQuest, Inc.  All rights reserved.  As of April, 2000 Resize2fs may be redistributed
       under the terms of the GPL.

SEE ALSO
       fdisk(8), e2fsck(8), mke2fs(8)

E2fsprogs version 1.32						   November 2002						      RESIZE2FS(8)