Provided by: btrfs-tools_4.4-1_amd64
btrfs-debug-tree - dump btrfs filesystem metadata into stdout
btrfs-debug-tree [options] <device>
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.
-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.
btrfs-debug-tree will return 0 if no error happened. If any problems happened, 1 will be returned.