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.

Examples:

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

REPORTING BUGS

Report bugs to <[email protected]>

AUTHOR

This manual page was written by Yury Umanets <[email protected]>