btrfs-find-root (8)

btrfs-find-root [options] <dev>

btrfs-find-root is used to find the satisfied root, you can filter by root tree\(cqs objectid, generation, level.

-g <generation>

Filter root tree by it\(cqs original transaction id, tree root\(cqs generation in default.

-o <objectid>

Filter root tree by it\(cqs objectid,tree root\(cqs objectid in default.

-l <level>

Filter root tree by B-+ tree\(cqs level, level 0 in default.

btrfs-find-root will return 0 if no error happened. If any problems happened, 1 will be returned.

mkfs.btrfs(8)