The mount command supports the options -o ro (for read only) and -o rw (for read write), However this is not indicated in the manual page. In addition, there are currently two examples on the page where the -o rw option appears although there is no reference to this -o option before (this makes this section a bit confusing).I think that would be enough to add in the man page that, -o ro is a synonym for the -r option (and also for -o rdonly) and that -o rw is a synonym for the -w option.
Sorry I can not send a patch myself (I'm new to OpenBSD and still need more experience). Manuel Blanca
