Buyer Beware: A Major Change in NFS (in Rawhide) is about to happen

[Steve Dickson]

On 10/26/2009 01:34 PM, Frank Ch. Eigler wrote:
> Steve Dickson <SteveD at redhat.com> writes:
> 
>> On 10/26/2009 12:06 PM, Frank Ch. Eigler wrote:
>>> Is this really "first" or rather "only"?  Was there a conclusion about
>>> whether the nfs client code would be changed to fall back from v4 to
>>> v3 automatically?
>> It meant "first"... [...]
>> The problem comes in when the server does support v4 but the exports are 
>> not configured correctly (like pre F-12 Linux servers). [...]
>> mount.nfs: mounting laptop:/home failed, reason given by server:
>>   No such file or directory
> 
> Unfortunately, this sounds like "only".  Is it out of the question to
> make the client look for this case (an upgraded client in an existing
> unupgraded, unchanged network) and handle it?
We talked about it... See http://linux-nfs.org/pipermail/nfsv4/2009-October/011471.html

But in the end, I decided not to do this since its not clear how the change
would interact with other NFS servers...

steved.