resize_reiserfs - resizer tool for the ReiserFS filesystem
resize_reiserfs [
-s
[+|-]size[K|
M|
G]
] [
-j dev ] [ -fqv ]
device
The
resize_reiserfs tool resizes an unmounted reiserfs file system. It
enlarges or shrinks an reiserfs file system located on a
device so that
it will have
size bytes or size=old_size +(-)
size bytes if the
+ or - prefix is used. If the
-s option is not specified, the
filesystem will be resized to fill the given device. The
size parameter
may have one of the optional modifiers
K,
M,
G, which
means the
size parameter is given in kilo-, mega-, gigabytes
respectively.
The
resize_reiserfs program does not manipulate the size of the device.
If you wish to enlarge a filesystem, you must make sure you expand the
underlying device first. This can be done using
cfdisk(8) for
partitions, by deleting the partition and recreating it with a larger size
(assuming there is free space
after the partition in question). Make
sure you re-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.
The
resize_reiserfs program allows to grow a reiserfs on-line if there is
a free space on block
device.
If you wish to shrink a reiserfs partition, first use
resize_reiserfs to
shrink the file system. You may then use
cfdisk(8) to shrink the
device. When shrinking the size of the device, make sure you do not make it
smaller than the reduced size of the reiserfs filesystem.
- -s [+|-]size
- Set the new size in bytes.
- -j dev
- Set the journal device name.
- -f
- Force, do not perform checks.
- -q
- Do not print anything but error messages.
- -v
- Turn on extra progress status messages (default).
0 Resizing successful.
- -1 Resizing not successful.
-
The following example shows how to test
resize_reiserfs. Suppose 2Gb
reiserfs filesystem is created on the device /dev/hda8 and is mounted on /mnt.
For shrinking the device we need to unmount it first, then run
resize_reiserfs with a
size parameter (in this case -1Gb):
df
umount /mnt
resize_reiserfs -s -1G /dev/hda8
mount /dev/hda8 /mnt
df /mnt
This version of
resize_reiserfs has been written by Alexander
Zarochentcev <
[email protected]>.
Please report bugs to the ReiserFS developers
<
[email protected]>, providing as much information as
possible--your hardware, kernel, patches, settings, all printed messages;
check the syslog file for any related information.
cfdisk(8),
reiserfsck(8),
debugreiserfs(8)