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 © 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)