Messages in this thread | | | From | Kyle Moffett <> | Subject | Re: "mount --bind" with user/group/mode definition? | Date | Thu, 11 Oct 2007 05:46:38 -0400 |
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On Oct 11, 2007, at 04:35:37, Ph. Marek wrote: > 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?
Not at the moment, unfortunately. I suspect that with the recent developments in user container support and/or overlay mounting it will become possible to either write a UID/GID-translation overlay filesystem or grant cross-UID-container keys to achieve what you want. On the other hand that probably won't fully happen for up to a year or so.
Cheers, Kyle Moffett - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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