resize_reiserfs(8) [linux man page]

RESIZE_REISERFS(8)					      System Manager's Manual						RESIZE_REISERFS(8)

NAME

       resize_reiserfs - resizer tool for the ReiserFS filesystem

SYNOPSIS

       resize_reiserfs [ -s [+|-]size[K|M|G] ] [ -j dev ] [ -fqv ] device

DESCRIPTION

       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.

OPTIONS

       -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).

RETURN VALUES

       0    Resizing successful.

       -1   Resizing not successful.

EXAMPLES

       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

AUTHOR

       This version of resize_reiserfs has been written by Alexander Zarochentcev <zam@namesys.com>.

BUGS

       Please report bugs to the ReiserFS developers <reiserfs-dev@namesys.com>, providing as much information as possible--your hardware, kernel,
       patches, settings, all printed messages; check the syslog file for any related information.

SEE ALSO

       cfdisk(8), reiserfsck(8), debugreiserfs(8)

Reiserfsprogs-3.6.21						   January 2009 						RESIZE_REISERFS(8)

DEBUGREISERFS(8)                                              System Manager's Manual                                             DEBUGREISERFS(8)

NAME

       debugreiserfs - The debugging tool for the ReiserFS filesystem.

SYNOPSIS

       debugreiserfs [ -dDJmoqpuSV ] [ -j device ] [ -B file ] [ -1 N ]

       device

DESCRIPTION

       debugreiserfs sometimes helps to solve problems with reiserfs filesystems.  When run without options it prints the super block of the Reis-
       erFS filesystem found on the device.

       device is the special file corresponding to the device (e.g /dev/hdXX for an IDE disk partition or /dev/sdXX for a SCSI disk partition).

OPTIONS

       -j device
              prints the contents of the journal. The option -p allows it to pack the journal with other metadata into the archive.

       -J     prints the journal header.

       -d     prints the formatted nodes of the internal tree of the filesystem.

       -D     prints the formatted nodes of all used blocks of the filesystem.

       -m     prints the contents of the bitmap (slightly useful).

       -o     prints the objectid map (slightly useful).

       -B file
              takes the list of bad blocks stored in the internal ReiserFS tree and translates it into an ascii  list  written  to  the  specified
              file.

       -1 blocknumber
              prints the specified block of the filesystem.

       -p     extracts the filesystem's metadata with debugreiserfs -p /dev/xxx | gzip -c > xxx.gz. None of your data are packed unless a filesys-
              tem corruption presents when the whole block having this corruption is packed. You send us the output, and we use  it  to  create  a
              filesystem  with  the same strucure as yours using debugreiserfs -u.  When the data file is not too large, this usually allows us to
              quickly reproduce and debug the problem.

       -u     builds the ReiserFS filesystem image with gunzip -c xxx.gz | debugreiserfs -u /dev/image of  the  previously  packed  metadata  with
              debugreiserfs  -p.  The result image is not the same as the original filesystem, because mostly only metadata were packed with debu-
              greiserfs -p, but the filesystem structure is completely recreated.

       -S     When -S is not specified -p deals with blocks marked used in the filesystem bitmap only. With this  option  set  debugreiserfs  will
              work with the entire device.

       -q     When -p is in use, suppress showing the speed of progress.

AUTHOR

       This version of debugreiserfs has been written by Vitaly Fertman <vitaly@namesys.com>.

BUGS

       Please report bugs to the ReiserFS developers <reiserfs-dev@namesys.com>, providing as much information as possible--your hardware, kernel,
       patches, settings, all printed messages; check the syslog file for any related information.

SEE ALSO

       reiserfsck(8), mkreiserfs(8)

Reiserfsprogs 3.6.21                                               January 2009                                                   DEBUGREISERFS(8)