SYNOPSIS
debugfs.reiser4 [ options ] FILEDESCRIPTION
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