btrfs-progs/Documentation/btrfs-find-root.asciidoc

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btrfs-find-root(8)
==================
NAME
----
btrfs-find-root - filter to find btrfs root
SYNOPSIS
--------
*btrfs-find-root* [options] <dev>
DESCRIPTION
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*btrfs-find-root* is used to find the satisfied root, you can filter by
root tree's objectid, generation, level.
OPTIONS
-------
-a::
Search through all the metadata extents, even the root is already found.
-g <generation>::
Filter root tree by it's original transaction id, tree root's generation in default.
-o <objectid>::
Filter root tree by it's objectid,tree root's objectid in default.
-l <level>::
Filter root tree by B-+ tree's level, level 0 in default.
EXIT STATUS
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*btrfs-find-root* will return 0 if no error happened.
If any problems happened, 1 will be returned.
SEE ALSO
--------
`mkfs.btrfs`(8)