mount_cd9660(8) on OpenBSD
The text 1f4ff0524936, as OpenBSD 6.6, OpenBSD 6.5, OpenBSD 6.4, OpenBSD 6.3, OpenBSD 6.2, OpenBSD 6.1, OpenBSD 6.0, OpenBSD 5.9, OpenBSD 5.8, OpenBSD 5.7, OpenBSD 5.6, OpenBSD 5.5 shipped it.
mount an ISO 9660 filesystem
Flags it lists
-
-R -
-e -
-g -
-j -
-o -
-s