Do you have any URL's with info on UNIONfs (setting up, etc.) - I'll look
into this and NFS - Thank you!
On Sun, 27 Jul 2003, The Hermit Hacker wrote:
> On Sat, 26 Jul 2003, BSD wrote:
> > IMHO, the best way would be to use mount_union or mount_null (I still
> > can't figure out what's the difference between them...) of the ports
> > directory. However, that said, I tried that myself about a year back,
> > and accesses in the jail caused my FreeBSD machine to lock up solid. So
> > I guess the warnings in the BUGS section of the mount_union and
> > mount_null man pages are still in full effect.
> *Alot* has changed in a year ... I use UNIONFS to share between 60 jails
> on one server right now, and the server has been purring *knock on wood*
> up 19+08:28, 0 users, load 10.66, 11.52, 10.17
> As for the difference between UNION and NULL ... and someone more
> knowledge will hopefully correct me, but based on my experience ...
> If you UNIONfs a file system over top of another, you can use NULLfs to
> "seperate" the two ... as an example, if you UNIONFS /usr/ports under
> /jail/usr/ports and do a du of /jail/usr/ports, you will get everything
> ... if you NULLFS mount /jail/usr/ports to /null/usr/ports, and do
> /null/usr/ports, you will get only those files that are *on*
> /jail/usr/ports ...
> Basically, NULLFS gives the same result as if you unmounted the UNIONFS
> and looked at /jail/usr/ports ...
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