RESIZE2FS(8)							  RESIZE2FS(8)



NAME
       resize2fs - ext2/ext3 file system resizer

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

DESCRIPTION
       The resize2fs program will resize ext2 or ext3 file systems.  It can be
       used  to  enlarge or shrink an unmounted file system located on device.
       If the filesystem is mounted, it can be used to expand the size of  the
       mounted filesystem, assuming the kernel supports on-line resizing.  (As
       of this writing, the Linux  2.6	kernel	supports  on-line  resize  for
       filesystems mounted using ext3 only.).

       The  size parameter specifies the requested new size of the filesystem.
       If no units are specified, the units of the size parameter shall be the
       filesystem blocksize of the filesystem.	Optionally, the size parameter
       may be suffixed by one of the following	the  units  designators:  s,
       K,  M, or G, for 512 byte sectors, kilobytes, megabytes, or giga
       bytes, respectively.  The size of the filesystem may  never  be	larger
       than the size of the partition.	If size parameter is not specified, it
       will default to 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 or using lvextend(8), if youre using  the  logical  volume
       manager lvm(8).	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.  After running fdisk(8), run resize2fs to resize  the  ext2
       filesystem to use all of the space in the newly enlarged partition.

       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

       -S RAID-stride
	      The  resize2fs  program  will  heuristically  determine the RAID
	      stride that was specified when the filesystem was created.  This
	      option  allows the user to explicitly specify a RAID stride set
	      ting to be used by resize2fs instead.

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

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

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

AUTHOR
       resize2fs was written by Theodore Tso .

COPYRIGHT
       Resize2fs  is Copyright 1998 by Theodore Tso 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), lvm(8), lvextend(8)



E2fsprogs version 1.40-WIP	 November 2006			  RESIZE2FS(8)