mount(8) on OpenBSD
The text ac37b1d1cb0b, as OpenBSD 4.8, OpenBSD 4.7, OpenBSD 4.6 shipped it.
mount file systems
Flags it lists
-
-A -
-a -
-d -
-f -
-o -
-r -
-s -
-t -
-u -
-v -
-w