debugreiserfs

 

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 DEBUGREISERFS(8)                                 DEBUGREISERFS(8)
 
 
 
NAME
        debugreiserfs
 
SYNOPSIS
        debugreiserfs  [  -jdcmos  ] [ -b blocknumber ] [ -p file­
        name.bmp ] [ -P filename.bmp ] device
 
DESCRIPTION
        It  helps  sometimes  to  solve  problems  with   reiserfs
        filesystems.  Being  called  w/o  options  it prints super
        block of reiserfs filesystem found on the device.
 
        device is the special file  corresponding  to  the  device
               (e.g  /dev/hdXX for IDE disk partition or /dev/sdXX
               for SCSI disk partition).
 
OPTIONS
        -j     print contents of journal
 
        -d     print formatted nodes of the filesystem
 
        -c     print contents of direct items
 
        -m     print contents of bitmap (not very useful)
 
        -o     print objectid map (not very useful)
 
        -s     scans the partition and prints a line when any kind
               of reiserfs formatted nodes found
 
        -b blocknumber
               print specified block of the filesystem
 
        -p filename
               -P filename
 
               Makes  debugreiserfs  to  find  filesystem metadata
               These exist to help reiserfsck debugging. If  reis­
               erfsck  fails - you may extract filesystem metadata
               with  debugreiserfs -p filename /dev/xxx |gzip -c >
               xxx.gz. We download that data and make the filesys­
               tem similar to your with gunzip -c xxx.gz |  unpack
               /dev/xxx  (unpack  is  included  into reiserfsprogs
               package). This  usually  allows  to  reproduce  and
               debug  the  problem  quickly. When data file is not
               too large.  -P will cause   debugreiserfs  to  find
               and  pack metadata from all the device whereas with
               -p it will only go through blocks  marked  used  in
               filesystem bitmaps
 
 
AUTHOR
        This  version  of  debugreiserfs  has been written by Hans
        Reiser <reiser@idiom.com>.
 
 BUGS
        There are probably few of them.  Please,  report  bugs  to
        Hans Reiser <reiser@idiom.com>.
 
SEE ALSO
        reiserfsck(8), mkreiserfs(8)
 
 
 
 Reiserfsprogs 3.x.0j        March 2001           DEBUGREISERFS(8)

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Last updated: 06/16/2025 19:52:53