Recursively export NFS file systems

[Aaron Isotton <aaron@isotton.com>]

Hi,

I want to export the whole file system of "zarathustra" via NFS to
"osiris".  What I am currently doing is this:

aisotton@zarathustra:~$ cat /etc/exports
# /etc/exports: the access control list for filesystems which may be exported
#               to NFS clients.  See exports(5).
/       osiris(ro,sync)
aisotton@zarathustra:~$

The problem is that when I mount / on osiris, it will not mount the
file systems which are mounted into / on zarathustra (for example
/usr, /var, /boot and so on).  Of course I can do something like this
on zarathustra:

/       osiris(ro, sync)
/usr    osiris(ro, sync)
/var    osiris(ro, sync)
/boot   osiris(ro, sync)
...

and then mount all of them by hand on osiris, but I'd like osiris not
to know about the file systems of the other machines.  What I want is
to specify all the file systems which should be mounted by osiris in
the individual /etc/exports, WITHOUT osiris knowing anything about
that.

Can that be done?  How?

Thanks.
-- 
Aaron Isotton

http://www.isotton.com/
My GPG Public Key: http://www.isotton.com/gpg-public-key