[PATCH 2/2] btrfs-progs: update docs for inspect-internal dump-super
From: Alexander Fougner <hidden>
Date: 2016-02-24 10:53:05
Subsystem:
documentation, the rest · Maintainers:
Jonathan Corbet, Linus Torvalds
Signed-off-by: Alexander Fougner <redacted> --- Documentation/btrfs-inspect-internal.asciidoc | 38 +++++++++++++++++++++++++++ btrfs-completion | 2 +- 2 files changed, 39 insertions(+), 1 deletion(-)
diff --git a/Documentation/btrfs-inspect-internal.asciidoc b/Documentation/btrfs-inspect-internal.asciidoc
index 25e6b8b..a151471 100644
--- a/Documentation/btrfs-inspect-internal.asciidoc
+++ b/Documentation/btrfs-inspect-internal.asciidoc@@ -92,6 +92,44 @@ Print info of the specified block only. -t <tree_id>:::: Print only the tree with the specified ID. +*show-super* [options] <device> [device...]:: +(needs root privileges) ++ +Show btrfs superblock information stored in devices. +It is used to print the information of superblock, +you can specify which mirror to print out. ++ +By default, every device's first superblock will be printed out. ++ +Mainly used for debug purpose. ++ +`Options` ++ + +-f:::: +Print full superblock information. ++ +Including the system chunk array and backup roots. + +-a:::: +Print information of all superblocks. ++ +If this option is given, '-i' option will be ignored. + +-i <super_mirror>:::: +Specify which mirror to print out. ++ +<super_mirror> is between 0 and 2. +If several '-i <super_mirror>' are given, only the last one is valid. + +-F:::: +Attempt to print the superblock even if no superblock magic is found. May end +badly. + +-s <bytenr>:::: +specifiy offset to a superblock in a non-standard location at 'bytenr', useful +for debugging (disables the '-f' option) + EXIT STATUS -----------
diff --git a/btrfs-completion b/btrfs-completion
index 7631911..db0dd97 100644
--- a/btrfs-completion
+++ b/btrfs-completion@@ -36,7 +36,7 @@ _btrfs() commands_device='scan add delete remove ready stats usage' commands_scrub='start cancel resume status' commands_rescue='chunk-recover super-recover' - commands_inspect_internal='inode-resolve logical-resolve subvolid-resolve rootid min-dev-size dump-tree' + commands_inspect_internal='inode-resolve logical-resolve subvolid-resolve rootid min-dev-size dump-tree dump-super' commands_property='get set list' commands_quota='enable disable rescan' commands_qgroup='assign remove create destroy show limit'
--
2.7.1