Tutorial for btrfs

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LEARN ABOUT CENTOS

btrfs-debug-tree

BTRFS-DEBUG-TREE(8)					      System Manager's Manual					       BTRFS-DEBUG-TREE(8)

NAME

       btrfs-debug-tree - dump Btrfs filesystem metadata into stdout.

SYNOPSIS

       btrfs-debug-tree [options] <device>

DESCRIPTION

       btrfs-debug-tree  is used to dump the whole tree of the given device.  This is maybe useful for analyzing filesystem state or inconsistence
       and has a positive educational effect on understanding the internal structure.  device is the device file where the filesystem is stored.

       Options

       -e   print detailed extents info.

       -d   print info of btrfs device and root tree dirs only.

       -r   print info of roots only.

       -b <block_num>
	    print info of the specified block only.

EXIT CODE

       btrfs-debug-tree 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, 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-DEBUG-TREE(8)

Linux