Messages in this thread | | | Date | Sun, 2 May 2004 17:14:46 +0300 (EEST) | From | GNU/Dizzy <> | Subject | Re: [RFC] Filesystem with multiple mount-points |
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On Sun, 2 May 2004, Guennadi Liakhovetski wrote:
> Hi Hi
> > Disclaimer: I am not a filesystem expert, so, what's below might be > absolute nonsense. > > There are systems, where it is desirable to make some partitions, > possibly, including root, read-only, and some other, like, e.g., /var, > /home, /lib/modules read-writable. Those writable filesystems may be quite > small, so, putting them on separate partitions creates too much overhead > for filesystem metadata, journals... Making those directories soft-links > into one writable partition would work, but is not too nice. > > So, how about adding a multiple mount-point option to some filesystem? > They would share metadata, journals, would be represented by several > directory-trees, and be mountable with, e.g.
How about mounting the big volume somewhere and using -o bind to mount some paths within it in different places of your needs ? I know that -o bind doesnt honor -o ro yet but if you really needed maybe you can make a patch for that, I for one would be very interested about that. check "man mount" about more information about "bind"
Also notice that linux (starting with some 2.3.x version if I remember well) already supports multiple mount points for a given "source" like mount /dev/hda1 /mnt1 mount /dev/hda1 /mnt2 and so on
-- Mihai RUSU Email: dizzy@roedu.net GPG : http://dizzy.roedu.net/dizzy-gpg.txt WWW: http://dizzy.roedu.net "Linux is obsolete" -- AST - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at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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