nfs mount problem

[Brian Wootton]

On 23/09/10 17:38, kubuntu-users-request at lists.ubuntu.com wrote:
> ubject:
> Re: nfs mount problem
> From:
> Tom H <tomh0665 at gmail.com>
> Date:
> Thu, 23 Sep 2010 11:31:38 -0400
>
> To:
> kubuntu-users at lists.ubuntu.com
>
>
> On Thu, Sep 23, 2010 at 8:49 AM, Alvin<info at alvin.be>  wrote:
>    
>> >  On Thursday 23 September 2010 14:34:41 Brian Wootton wrote:
>>      
>>> >>  I can't for the life me get an nfs mount to work,
>>> >>  this is the entry I've put in /etc/exports:
>>> >>
>>> >>  /pub/brian      meg(ro,insecure,all_squash,sync,no_subtree_check)
>>> >>
>>> >>  which at least generates no errors from the server nfs daemon, but
>>> >>  all I get from the mount command on the client is 'access denied by
>>> >>  server'. mutter, mutter.
>>> >>  I've tried ip addresses, I've tried a multitude of differnet options(in-
>>> >>  cluding none), makes no difference, still get access denied by server
>>> >>  on the client machine.
>>> >>     I've read 'man exports' until my eyes water. I found some useful
>>> >>  howtos on google, but still 'access denied by server'.
>>> >>     If any-one has a magic entry for me to try I'd be glad to try it, or any
>>> >>  helpful hints.
>>>        
>> >
>> >  Please give us some extra information (if it's there), like:
>> >  - Command used to mount the share
>> >  - Other lines in /etc/exports
>> >  - Changes you did in other files (/etc/default/nfs-common, /etc/idmap.conf)
>> >  - Is the portmap daemon running?
>> >  - Do you have nfs-common installed on the client and nfs-kernel-server on the
>> >  server?
>> >  - What does 'showmount -e' on the server tell you?
>> >
>> >  I see you use the insecure option? The only use of that option that I know of
>> >  is the NFS kioslave, but that will not work in your case because your share is
>> >  a subdirectory. [1]
>> >
>> >  [1]https://bugs.launchpad.net/bugs/385514
>>      
> I just assumed that it might be an nfsv4 "root fs" problem but this is
> a more comprehensive and "holistic" approach.
>
> I would add "rpcinfo -p" on the server.
>
> The "insecure" option is needed if you have OS X clients.
>    

This is a cut/paste from konsole
------------------------------------------------------------------------------------

> % sudo /etc/init.d/nfs-kernel-server start
> [sudo] password for brian:
>   * Exporting directories for NFS kernel daemon...                                                                                                               [ OK ]
>   * Starting NFS kernel daemon                                                                                                                                   [ OK ]
> % showmount -e
> Export list for meg:
> /pub/brian meg
> % ps aux | grep portmap
> daemon     667  0.0  0.0   8256   616 ?        Ss   11:04   0:00 portmap
> brian     4585  0.0  0.0   7632   992 pts/1    S+   19:23   0:00 grep --color=auto portmap
> % ls -ls /pub
> total 4
> 4 drwxr-xr-x 2 brian brian 4096 2010-09-18 11:14 brian
>
>
> % more /etc/exports
> # /etc/exports: the access control list for filesystems which may be exported
> #               to NFS clients.  See unfsd(8).
> /pub/brian      meg(ro,insecure,all_squash,sync,no_subtree_check)
> ---------------------------------------------------------------------------
>    
/pub is owned by root.

My client machine is a laptop running the latest Mandriva Spring release
and I have used KNetAttach as well as 'mount -t nfs meg:/pub/brian
also used IP address here - all no go.
  I think it has to be the arguments to the entry in etc/exports, but 
I've tried
so many different combinations now I'm utterly confused. I don't like or
want 'insecure'.
I'm starting the nfs server manually for the moment, when I can get it all
working I'll put it the boot-up start list.
brian