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 you're 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-

       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), lvm(8), lvextend(8)



E2fsprogs version 1.40.3         December 2007                    RESIZE2FS(8)