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, directories, 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.

Temporary Options

-C  converts to the new backup layout. Use this only if you created a reiser4 fs with some previous version of reiser4progs.

Examples:

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

REPORTING BUGS
Report bugs to <umka@namesys.com>, <reiserfs-list@namesys.com>

SUPPORT
You can get support at http://www.namesys.com/support.html

SEE ALSO
libreiser4(8), measurefs.reiser4(8), mkfs.reiser4(8), fsck.reiser4(8) cpfs.reiser4(8) resizefs.reiser4(8)

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