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debugfs.reiser4

debugfs.reiser4(8)						reiser4progs manual						debugfs.reiser4(8)

NAME

       debugfs.reiser4 - the program for debugging reiser4 filesystem.

SYNOPSIS

       debugfs.reiser4 [ options ] FILE

DESCRIPTION

       debugfs.reiser4 is reiser4 filesystem debug program. You can disscover the internal reiser4 filesystem structures by using it.

COMMON OPTIONS

       -V, --version
	      prints program version.

       -?, -h, --help
	      prints program help.

       -y, --yes
	      assumes an answer 'yes' to all questions.

       -f, --force
	      forces debugfs to use whole disk, not block device or mounted partition.

       -c, --cache N
	      sets tree cache node number to passed value. This affects very much behavior of libreiser4. It affects speed, tree allocation, etc.

BROWSING OPTIONS

       -k, --cat
	      browses passed file like standard cat and ls programs.

PRINT OPTIONS

       -t, --print-tree
	      prints the internal tree.

       -b, --print-block N
	      prints the block associated with the passed block number.

       -n, --print-nodes FILE
	      prints all nodes that the passed file lies in.

       -i, --print-file
	      prints all items that the passed file consists of.

       -s, --print-super
	      prints the both super blocks: master super block and format specific one.

       -j, --print-journal
	      prints the journal with not yet commited transactions (if any).

       -a, --print-alloc
	      prints the block allocator data.

       -d, --print-oid
	      prints the oid allocator data.

METADATA OPTIONS

       -P, --pack-metadata
	      fetches filesystem metadata and writes them to the standard output.

       -U, --unpack-metadata
	      reads  filesystem  metadata  stream  from the stdandard input and constructs a new filesystem based on the metadata. debugfs.reiser4
	      --pack-metadata <FS1> | debugfs.reiser4 --unpack-metadata <FS2> and then debugfs.reiser4 --pack-metadata	<FS2>  produces  a  stream
	      equivalent to the first one.

PLUGIN OPTIONS

       -p, --print-profile
	      prints  the  plugin profile. This is the set of default plugins used for all parts of a filesystem -- format, nodes, files, directo-
	      ries, hashes, etc. If --override is specified, then prints modified plugins.

       -l, --print-plugins
	      prints all plugins libreiser4 knows about.

       -o, --override TYPE=PLUGIN, ...
	      overrides the default plugin of the type "TYPE" by the plugin "PLUGIN" in the plugin profile.

Examples:
       debugfs.reiser4 -o nodeptr=nodeptr41,hash=rupasov_hash /dev/hda2

REPORTING BUGS

       Report bugs to <reiserfs-devel@vger.kernel.org>

SEE ALSO

       measurefs.reiser4(8), mkfs.reiser4(8), fsck.reiser4(8)

AUTHOR

       This manual page was written by Yury Umanets <umka@namesys.com>

reiser4progs							   02 Oct, 2002 						debugfs.reiser4(8)