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    Command:

    debugreiserfs

    
    
    

    SYNOPSIS

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

    DESCRIPTION

           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-
                  tion).
    
    
    

    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  filesys-
                  tem.
    
           -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.
    
           ware, 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)

    
    
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