is there some way to duplicate a directory somewhere else (like with "mount --bind"), but having different owner/group/mode bits?
I'd like to mount a directory I have no control over (think NFS, or floppy, ...) with clearly defined rights - like root:<some group>, mode 0550 for all directories, and 0440 for all files. (Here I want to have full *read* control, regardless of the original permissions).
[ I know that this special case can be (mostly) done by a read-only binding mount; the part that is missing is eg. files with a different owner being 0700. ]
I know that something like this is possible for eg. VFAT, which has no right descriptors for itself; but I'd need that for arbitrary directory trees, who themselves *have* permissions set.
Is there some way to achieve that?