export directory under different name

export directory under different name

[Sven Köhler]

Hi,

is it possible to export a directory under a different name?
Let's say i have a directory called /mnt/disk1/home3 and other machines 
would like to mount it as if it was /home3. Is this possible? i wouldn't 
know, how an entry in /etc/exports would look like.

The problem is, that i have to adjust my configuration to match an 
existing structure. I must must export the directory /home3, but i don't 
want to mount the whole partition there.

At present, i do a "mount -o bind /mnt/disk1/home3 /home3" which works 
fine *fingers crossed*. Is this a supported configuration, or does this 
only work "by accident"?

Thx
   Sven




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Re: export directory under different name

[Michael Richardson]

-----BEGIN PGP SIGNED MESSAGE-----


>>>>> "hler" == hler  <Sven> writes:
    hler> is it possible to export a directory under a different name?

  No, it is not. 
  There is no theorectical reason why mountd can not do more complicated
mappings before giving out file handles, but it does not (to my
knowledge) do so.
  It does follow symlinks, though.

    hler> Let's say i have a directory called /mnt/disk1/home3 and other
    hler> machines would like to mount it as if it was /home3. Is this
    hler> possible? i wouldn't know, how an entry in /etc/exports would
    hler> look like.

  Assuming that you don't have a /home3 already, I'd just do:
	   ln -s /mnt/disk1/home3 /home3
	   
  and then list /home3 in exports.

    hler> At present, i do a "mount -o bind /mnt/disk1/home3 /home3"
    hler> which works fine *fingers crossed*. Is this a supported
    hler> configuration, or does this only work "by accident"?

  That should be supported.

- --
]     "Elmo went to the wrong fundraiser" - The Simpson         |  firewalls  [
]   Michael Richardson,    Xelerance Corporation, Ottawa, ON    |net architect[
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Re: export directory under different name

[Sven Köhler]

>   No, it is not. 
>   There is no theorectical reason why mountd can not do more complicated
> mappings before giving out file handles, but it does not (to my
> knowledge) do so.
>   It does follow symlinks, though.

Symlinks should be sufficient for me. I didn't expect mountd to follow 
symlinks, so i didn't try that. I just did, and it works as expected.

Thx
   Sven


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