disklabel(8) on OpenBSD
The text 41b929992a7e, as OpenBSD 6.0, OpenBSD 5.9 shipped it.
read and write disk pack label
Flags it lists
-
-A -
-E -
-F -
-R -
-T -
-c -
-d -
-e -
-f -
-h -
-n -
-p -
-t -
-v -
-w