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Diffstat (limited to 'Documentation/btrfs-show-super.txt')
| -rw-r--r-- | Documentation/btrfs-show-super.txt | 53 |
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diff --git a/Documentation/btrfs-show-super.txt b/Documentation/btrfs-show-super.txt new file mode 100644 index 00000000..e8e17abc --- /dev/null +++ b/Documentation/btrfs-show-super.txt @@ -0,0 +1,53 @@ +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 +------- +-a:: +Print all the superblock information. ++ +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. + +EXIT STATUS +----------- +'btrfs-show-super' will return 0 if no error happened. +If any problems happened, 1 will be returned. + +AUTHOR +------ +Written by Shilong Wang and Wenruo Qu. + +COPYRIGHT +--------- +Copyright (C) 2013 FUJITSU LIMITED. + +License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>. + +This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. + +SEE ALSO +-------- +`mkfs.btrfs`(8) |