debugreiserfs man page on Archlinux

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       debugreiserfs - The debugging tool for the ReiserFS filesystem.

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


       debugreiserfs  sometimes helps to solve problems with reiserfs filesys‐
       tems.  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	parti‐

       -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  filesys‐

       -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	speci‐
	      fied 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	 filesystem  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  debugreiserfs  -p,	but  the  filesystem structure is com‐
	      pletely 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.

       This version of	debugreiserfs  has  been  written  by  Vitaly  Fertman

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

       reiserfsck(8), mkreiserfs(8)

Reiserfsprogs 3.6.24		 January 2009		      DEBUGREISERFS(8)

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