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| author | David Sterba <dsterba@suse.cz> | 2014-12-18 16:04:10 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.cz> | 2014-12-18 16:04:10 +0100 |
| commit | a6b4a7aea0c3fe9526a652136885d442dbe79376 (patch) | |
| tree | b0a9208e308cede3df087300ef8751120e66bf27 | |
| parent | 182f41909fe2121d8e605441713d8d7fc8ded70a (diff) | |
| download | btrfs-progs-a6b4a7aea0c3fe9526a652136885d442dbe79376.tar.gz | |
btrfs-progs: check, update documentation
Add recently added options to manpage, a few other rewordings.
Signed-off-by: David Sterba <dsterba@suse.cz>
| -rw-r--r-- | Documentation/btrfs-check.txt | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/Documentation/btrfs-check.txt b/Documentation/btrfs-check.txt index 821bfc9a..f8d8ab4d 100644 --- a/Documentation/btrfs-check.txt +++ b/Documentation/btrfs-check.txt @@ -3,7 +3,7 @@ btrfs-check(8) NAME ---- -btrfs-check - check or repair a btrfs filesystem offline +btrfs-check - check or repair an unmounted btrfs filesystem SYNOPSIS -------- @@ -11,11 +11,11 @@ SYNOPSIS DESCRIPTION ----------- -*btrfs check* is used to check or repair a btrfs filesystem offline. +*btrfs check* is used to check or repair an unmounted btrfs filesystem. -NOTE: Since btrfs is under heavy development especially the *btrfs check* -command, it is *highly* recommended to read the following btrfs wiki before -executing *btrfs check* with '--repair' option: + +NOTE: Since btrfs is under development, the *btrfs check* capabilities are +continuously enhanced. It's highly recommended to read the following btrfs +wiki before executing *btrfs check* with '--repair' option: + https://btrfs.wiki.kernel.org/index.php/Btrfsck *btrfsck* is an alias of *btrfs check* command and is now deprecated. @@ -23,17 +23,22 @@ https://btrfs.wiki.kernel.org/index.php/Btrfsck OPTIONS ------- -s|--super <superblock>:: -use <superblock>th superblock copy. +use <superblock>th superblock copy, valid values are 0 up to 2 if the +respective superblock offset is within the fileystem --repair:: -try to repair the filesystem. +try to repair the filesystem --init-csum-tree:: -create a new CRC tree. +create a new CRC tree and recalculate all checksums --init-extent-tree:: -create a new extent tree. +create a new extent tree --check-data-csum:: -verify checkums of data blocks. +verify checkums of data blocks +--qgroup-report:: +verify qgroup accounting and compare against filesystem accounting --subvol-extents <subvolid>:: -show extent state for a subvolume. +show extent state for a subvolume +--tree-root <bytenr>:: +use the given bytenr for the tree root EXIT STATUS ----------- |