Dr Andrew C Aitchison wrote:
> On Wed, 8 Oct 2008, Ken Teh wrote:
> 
>> reverted back to NFSv3 and have had no problems with it.  Are folks 
>> satisfied with NFSv4?  Or, am I the stupid one for trusting the 
>> default on the distro? I'd appreciate any general remarks you might 
>> have on how to move forward.
> 
> I've been put off NFSv4 becuase I cannot understand how to
> export several directory trees in differenet partitions.
> NFSv4 seems to want you to merge them into a virtual partion
> and export that, but the kernel cannot cope with the different
> bits of the virtual partition having different permission modes.
> So I can't export a read only partition and a read-write partition
> without the kernel becoming dangerously confused :-(
>

That I was able to do.  The following /etc/exports is an example:

/x @myclients(fsid=0,rw,....)
/x/packages @myclients(ro,...)
/x/home @myclients(rw,...)

 
> I went back to NFSv3.
> 

I completed my transition to NFS3 today.  We'll see if it "performs better".  I expect it will from past experiences.