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 suf-
fixed by one of the following the units designators: 's', 'K', 'M', or 'G', for 512 byte
sectors, kilobytes, megabytes, or gigabytes, 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 start-
ing 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 shrink-
ing 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 fea-
tures 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 <>.
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 1.35 February 2004 RESIZE2FS(8)
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