On Fri, 2012-04-27 at 11:14 -0400, Josh Boyer wrote:
> On Fri, Apr 27, 2012 at 03:02:07PM +0000, Myklebust, Trond wrote:
> > On Fri, 2012-04-27 at 10:53 -0400, Josh Boyer wrote:
> > > On Fri, Apr 27, 2012 at 02:50:28PM +0000, Myklebust, Trond wrote:
> > > > On Fri, 2012-04-27 at 10:48 -0400, Josh Boyer wrote:
> > > > > On Fri, Apr 27, 2012 at 10:19:18AM -0400, Jim Rees wrote:
> > > > > > Josh Boyer wrote:
> > > > > >
> > > > > > When NFSv4 is configured, the support goes into the nfs.ko module.
> > > > > > However, nfs-utils seems to pass "nfs4" as the fileststem type for
> > > > > > NFSv4 mounts.
> > > > > >
> > > > > > Weren't we going to change that to nfs and use nfsvers to select nfs4?
> > > > >
> > > > > I have, approximately, no idea. At least the version of nfs-utils found
> > > > > in Fedora 17 and rawhide, it's still using "nfs4". I believe that is
> > > > > nfs-utils-1.2.6-rc6 based.
> > > >
> > > > nfs4 is still _supported_ in Fedora 17, rawhide and upstream as a legacy
> > > > feature, but the recommended practice should be to mount -t nfs -overs=4
> > > > (or -overs=4.1).
> > >
> > > OK. So either this patch needs to go in, or something needs to add:
> > >
> > > alias nfs4 nfs
> > >
> > > to a conf file so modprobe picks it up. I figured the kernel could add
> > > the alias itself. Is there a reason not to?
> >
> > Yes. This is a legacy feature that we want to encourage people to move
> > their systems off...
>
> So essentially what needs to happen is:
>
> - Recent distros still ship the modalias in a conf file
> - Upstream nfs-utils starts translating 'mount -t nfs4' into 'mount -t
> nfs -overs=4' in /sbin/mount.nfs4
> - Upstream releases that
> - Distros drop the alias.
>
> Right?
No. Really all we need to do is add a printf() to /sbin/mount.nfs4 to
the effect that this is a legacy feature and that '-t nfs -overs=4' is
the recommended mount option. Perhaps the distros can also have their
distro upgrade utilities edit /etc/fstab to upgrade those automatically.
Then the distros can drop the alias whenever they think it is
appropriate.
--
Trond Myklebust
Linux NFS client maintainer
NetApp
Trond.Myklebust@xxxxxxxxxx
www.netapp.com
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