disklabel(8) on OpenBSD
The text 7bcd52b65341, as OpenBSD 5.5 shipped it.
read and write disk pack label
Flags it lists
-
-A -
-B -
-E -
-F -
-R -
-b -
-c -
-d -
-e -
-f -
-h -
-n -
-p -
-t -
-v -
-w