btrfs-show-super(8) centos man page | unix.com

BTRFS-SHOW-SUPER(8)					      System Manager's Manual					       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. In default, every device's
       first superblock will be printed out.

       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 CODE
       btrfs-show-super will return 0 exit code 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, Inc.  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)

															       BTRFS-SHOW-SUPER(8)