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author | Nicholas D Steeves <nsteeves@gmail.com> | 2016-04-23 00:41:30 +0100 |
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committer | Nicholas D Steeves <nsteeves@gmail.com> | 2016-04-23 00:41:30 +0100 |
commit | cec572daccafa1e912cbed363df6f84687778c6f (patch) | |
tree | 7d99ab9f73d25c1ed8eaf6393f6374edf5316b03 /Documentation/btrfs-show-super.asciidoc |
btrfs-progs (4.4.1-1.1) unstable; urgency=medium
* Non-maintainer upload.
* New upstream release.
* Rename package to btrfs-progs (Closes: #780081)
* Update standards version to 3.9.7 (no changes needed).
* debian/control: Add "Breaks" per Gianfranco Costamagna's suggestion
* Change lintian override to reflect package rename
* Switch from using postinst and postrm to using triggers
per Christian Seiler's recommendation.
# imported from the archive
Diffstat (limited to 'Documentation/btrfs-show-super.asciidoc')
-rw-r--r-- | Documentation/btrfs-show-super.asciidoc | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/Documentation/btrfs-show-super.asciidoc b/Documentation/btrfs-show-super.asciidoc new file mode 100644 index 00000000..8866c940 --- /dev/null +++ b/Documentation/btrfs-show-super.asciidoc @@ -0,0 +1,54 @@ +btrfs-show-super(8) +==================== + +NAME +---- +btrfs-show-super - show btrfs superblock information stored in devices + +SYNOPSIS +-------- +*btrfs-show-super* [options] <dev> [<dev>...] + +DESCRIPTION +----------- +*btrfs-show-super* 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 +----------- +*btrfs-show-super* will return 0 if no error happened. +If any problems happened, 1 will be returned. + +SEE ALSO +-------- +`mkfs.btrfs`(8) |