Re: Booting Sun3/50 Diskless from Serving PC

[David Brownlee <abs%NetBSD.org@localhost>]

On Thu, 5 Mar 2009, David Johnson wrote:

> I moved all of my various individual exports directories as they were shown 
> in the NFS Diskless Boot Howto  to /export/root as you suggested in your 
> email:
>     *WAS                                                           IS*
> /export/sun350/root                                     /export/sun350/root
> /export/sun350/swap  (is an 8Mbyte file)  -->  /export/sun350/root/swap
> /export/sun350/usr 
> /export/sun350/root/usr
> /export/sun350/home 
> /export/sun350/root/home
>
> My etc/exports now looks like this:
> #/etc/export
> /   -maproot:root:wheel -alldirs   sun350.grid.net         <---- this works 
> without complaint from mountd

        Now you have your exports like that you should also be able to
        mount home and usr as separate filesystems if you want (though
        personally I would leave them as they are)

> I can boot diskless to single user mode but I'm still having trouble getting 
> swap to work.  Your comment about /export being a separate file system on my 
> server raises questions.  I simply did a mkdir /export to create this tree on 
> my server.  But what I'm ending up with is completely different from what the 
> NFS diskless Howto shows for setup.  I'm wondering what happened in my case 
> and why am I ending up so different from the HOWTO description?

        I suspect part of it could be related to additional checks
        that NetBSD added a while back to prevent multiple NFS
        exports of the same base filesystem, so /etc/exports configs
        that used to work no longer do.

        The diskless howto definitely needs some updating.

        For the swap file can you try:
        - move the swap file to /export/sun350/swap
        - create a directory /export/sun350/root/swap
        - Try the following in fstab on the client
          server:/export/sun350/swap none swap sw,nfsmntpt=/swap

        (According to the swapctl manpage that *should* work).



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