btrfs-show-super man page on Oracle
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btrfs-show-super - show btrfs superblock information stored in devices
btrfs-show-super [options] <dev> [<dev>...]
btrfs-show-super is used to print the information of superblock, you
can specify which mirror to print out. In default, every device's first
superblock will be printed out.
-a print all the superblock information, if this option is given,
'-i' option will be ignored.
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
btrfs-show-super will return 0 exit code if no error happened. If any
problems happened, 1 will be returned.
Written by Shilong Wang and Wenruo Qu.
Copyright © 2013 Fujitsu, Inc. License GPLv2: GNU GPL version 2
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
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