resize2fs



RESIZE2FS(8)                                                      RESIZE2FS(8)




NAME

       resize2fs - ext2/ext3 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.   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.  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

       -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 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 1.38             June 2005                      RESIZE2FS(8)

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