Re: Ubuntu NFS automount problem

[Peter Staubach <staubach@redhat.com>]

Ian Kent wrote:
> On Sun, 2008-11-23 at 23:25 -0800, Bill Shannon wrote:
>   
>> Ian Kent wrote:
>>     
>>> On Sat, 2008-11-22 at 18:27 -0800, Bill Shannon wrote:
>>>       
>>>> I'm running Ubuntu 8.04 (Hardy Heron) on my desktop at home.
>>>> I have an OpenSolaris 2008.11 server and a Solaris 10 server.
>>>> Both servers export NFS filesystems.
>>>>
>>>> On my Ubuntu desktop, the autmounter doesn't want to automount hierarchical
>>>> filesystems.  I first noticed this with /home, but /net doesn't work either.
>>>>
>>>> My OpenSolaris server is named "nissan".  My Solaris server is named "nissan2".
>>>>
>>>> # showmount -e nissan
>>>> Export list for nissan:
>>>> /backup                 (everyone)
>>>> /backup/download        (everyone)
>>>> /export/home/admin      (everyone)
>>>> /backup/pictures        (everyone)
>>>> /export/home/shannon    (everyone)
>>>> /export/home            (everyone)
>>>> /export/home/readerware (everyone)
>>>> /backup2                (everyone)
>>>> /export/home/opt        (everyone)
>>>> # showmount -e nissan2
>>>> Export list for nissan2:
>>>> /export/home (everyone)
>>>> /backup      (everyone)
>>>> /backup2     (everyone)
>>>> # cat /etc/auto.net
>>>> *	-rw,intr	&:/
>>>>         
>>> How is do you expect this to work, explain?
>>>       
>> The simple answer is - the same way it works on Solaris and Mac OS.
>>     
>
> I asked you "how" is this supposed to work not "what" you think is is
> supposed to be the result.
>
>   
>> I should see the following directories:
>>
>> /net/nissan/backup
>> /net/nissan/backup/download
>> /net/nissan/backup/pictures
>> /net/nissan/export
>> /net/nissan/export/home
>> /net/nissan/export/home/shannon
>>     
>
> I can't see how the above map entry can provide these mappings and if
> you can't provide an accurate description of how the mounts are
> constructed I can't tell you whether Linux autofs can, either do what
> you expect or be updated to do what you expect.
>
>   
>> and so on.
>>
>> After autofs mounts nissan:/backup on /net/nissan, it then
>> needs to mount nissan:/backup/download on /net/nissan/backup/download.
>>
>> And in the case of nissan:/export, there's nothing to mount on
>> /net/nissan/export, so autofs needs to create a pseudo-directory
>> that contains an entry for "home".
>>
>> Understand?
>>     
>
> No, I don't understand at all, but that's because you've not provided
> any useful information.
>
> Where in the Solaris documentation is the behavior of this type of map
> entry described.

Bill, why aren't you using the -hosts map?  This would make the behavior
of Linux work like Solaris.  The map supplied will just mount "/" from
the server.  This may work for NFSv4, but will not work so well for NFSv2
and NFSv3.  You might also try forcing NFSv4 on the Ubuntu system.

       ps