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-rw-r--r--Documentation/btrfs-image.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/btrfs-image.txt b/Documentation/btrfs-image.txt
index 7ee820c2..155194a1 100644
--- a/Documentation/btrfs-image.txt
+++ b/Documentation/btrfs-image.txt
@@ -48,6 +48,9 @@ Walk all the trees manually and copy any blocks that are referenced. Use this
option if your extent tree is corrupted to make sure that all of the metadata is
captured.
+-m::
+Restore for multiple devices, more than 1 device should be provided.
+
EXIT STATUS
-----------
*btrfs-image* will return 0 if no error happened.