NFS v2 Server

[Craig Lanning]

Has there been a change to the NFS server?

I am running:
	Fedora 24
	nfs-utils 1.3.4

All of this has worked in earlier versions of Fedora so I'm a little
confused.

I am trying to setup the NFS server and I need it to serve NFS v2. That
is the only protocol version that the client machine understands.  It's
OS was written before v3 existed.

I followed the instructions for setting it up.

The client can get the list of exported filesystems from the server,
but fails when it tries to access one of them.

The error says something about a "Remote module version mismatch."  I
was thinking that the server was only using NFS v3.  Is there something
else that the client might access that could have a version mismatch
besides the NFS protocol?

Have I missed something in setting up the NFS Server?

Craig

[Terry Polzin]

What OS is the client?


On Thu, Dec 1, 2016 at 3:44 PM, Craig Lanning <craig.t.lanning(a)gmail.com&gt;
wrote:

>  Has there been a change to the NFS server?
>
>  I am running:
>          Fedora 24
>          nfs-utils 1.3.4
>
>  All of this has worked in earlier versions of Fedora so I'm a little
>  confused.
>
>  I am trying to setup the NFS server and I need it to serve NFS v2. That
>  is the only protocol version that the client machine understands.  It's
>  OS was written before v3 existed.
>
>  I followed the instructions for setting it up.
>
>  The client can get the list of exported filesystems from the server,
>  but fails when it tries to access one of them.
>
>  The error says something about a "Remote module version mismatch."  I
>  was thinking that the server was only using NFS v3.  Is there something
>  else that the client might access that could have a version mismatch
>  besides the NFS protocol?
>
>  Have I missed something in setting up the NFS Server?
>
>  Craig
>  _______________________________________________
>  users mailing list -- users(a)lists.fedoraproject.org
>  To unsubscribe send an email to users-leave(a)lists.fedoraproject.org
>

[Craig Lanning]

The client is a Symbolics XL1201 Lisp Machine.

It's operating system is called Genera.

For completeness:
	Genera         8.3
	NFS Client   436.0
	IP-TCP       446.1

I have talked to various servers running NFS.  I have even talked to
NFS servers on machines running Fedora, just not Fedora 24.

The critical item is that the Lisp Machine only understands NFS v2 and
cannot talk to NFS v3 or v4.

Would it be helpful for me to attempt the connection while running
Wireshark to monitor the network traffic?

Craig

On Thu, 2016-12-01 at 15:52 -0500, Terry Polzin wrote:
> What OS is the client?
> 
> 
> On Thu, Dec 1, 2016 at 3:44 PM, Craig Lanning <craig.t.lanning@gmail.
> com> wrote:
> > Has there been a change to the NFS server?
> > 
> > I am running:
> >         Fedora 24
> >         nfs-utils 1.3.4
> > 
> > All of this has worked in earlier versions of Fedora so I'm a
> > little
> > confused.
> > 
> > I am trying to setup the NFS server and I need it to serve NFS v2.
> > That
> > is the only protocol version that the client machine understands. 
> > It's
> > OS was written before v3 existed.
> > 
> > I followed the instructions for setting it up.
> > 
> > The client can get the list of exported filesystems from the
> > server,
> > but fails when it tries to access one of them.
> > 
> > The error says something about a "Remote module version mismatch."
> >  I
> > was thinking that the server was only using NFS v3.  Is there
> > something
> > else that the client might access that could have a version
> > mismatch
> > besides the NFS protocol?
> > 
> > Have I missed something in setting up the NFS Server?
> > 
> > Craig
> > _______________________________________________
> > users mailing list -- users(a)lists.fedoraproject.org
> > To unsubscribe send an email to users-leave(a)lists.fedoraproject.org
> > 
> 
> _______________________________________________
> users mailing list -- users(a)lists.fedoraproject.org
> To unsubscribe send an email to users-leave(a)lists.fedoraproject.org

[Ed Greshko]

On Dec 2, 2016 04:45, "Craig Lanning" <craig.t.lanning(a)gmail.com&gt; wrote:
>  Has there been a change to the NFS server?
>
>  I am running:
>          Fedora 24
>          nfs-utils 1.3.4
>
>  All of this has worked in earlier versions of Fedora so I'm a little
>  confused.
>
>  I am trying to setup the NFS server and I need it to serve NFS v2. That
>  is the only protocol version that the client machine understands.  It's
>  OS was written before v3 existed.
>
>  I followed the instructions for setting it up.
>
>  The client can get the list of exported filesystems from the server,
>  but fails when it tries to access one of them.
>
>  The error says something about a "Remote module version mismatch."  I
>  was thinking that the server was only using NFS v3.  Is there something
>  else that the client might access that could have a version mismatch
>  besides the NFS protocol?
>
>  Have I missed something in setting up the NFS Server? 
I have not setup an NFS server in quite a while.

However, my memory is telling me that the default is to not enable V2
support. I believe you can edit /etc/sysconfig/nfs and edit the RPCNFSDARGS
parameter to specify V2 support.

[Craig Lanning]

On Fri, 2016-12-02 at 14:02 +0800, Ed Greshko wrote:
>  On Dec 2, 2016 04:45, "Craig Lanning"
> <craig.t.lanning(a)gmail.com&gt;
>  wrote:
>  >
>  > Has there been a change to the NFS server?
>  >
>  > I am running:
>  >         Fedora 24
>  >         nfs-utils 1.3.4
>  >
>  > All of this has worked in earlier versions of Fedora so I'm a
>  little
>  > confused.
>  >
>  > I am trying to setup the NFS server and I need it to serve NFS v2.
>  That
>  > is the only protocol version that the client machine understands. 
>  It's
>  > OS was written before v3 existed.
>  >
>  > I followed the instructions for setting it up.
>  >
>  > The client can get the list of exported filesystems from the
>  server,
>  > but fails when it tries to access one of them.
>  >
>  > The error says something about a "Remote module version mismatch."
>   I
>  > was thinking that the server was only using NFS v3.  Is there
>  something
>  > else that the client might access that could have a version
>  mismatch
>  > besides the NFS protocol?
>  >
>  > Have I missed something in setting up the NFS Server?
>  I have not setup an NFS server in quite a while.
>  However, my memory is telling me that the default is to not enable V2
>  support. I believe you can edit /etc/sysconfig/nfs and edit the
>  RPCNFSDARGS parameter to specify V2 support.  
That was what I needed.

Thanks.

I added -V 2 to the RPCNFSDARGS string and it worked just fine.

I didn't have to do that the last time I setup the NFS server. Probably
been a few years, though.

Oh well. . .

It works now!

Thanks for the help.

Craig

[Anthony Joseph Messina]

On Thursday, December 1, 2016 3:44:38 PM CST Craig Lanning wrote:
>  Has there been a change to the NFS server?
>  
>  I am running:
>  	Fedora 24
>  	nfs-utils 1.3.4
>  
>  All of this has worked in earlier versions of Fedora so I'm a little
>  confused.
>  
>  I am trying to setup the NFS server and I need it to serve NFS v2. That
>  is the only protocol version that the client machine understands.  It's
>  OS was written before v3 existed.
>  
>  I followed the instructions for setting it up.
>  
>  The client can get the list of exported filesystems from the server,
>  but fails when it tries to access one of them.
>  
>  The error says something about a "Remote module version mismatch."  I
>  was thinking that the server was only using NFS v3.  Is there something
>  else that the client might access that could have a version mismatch
>  besides the NFS protocol?
>  
>  Have I missed something in setting up the NFS Server?
>  
>  Craig 
This probably isn't an issue for you yet, but some v2 bits are starting to be 
removed from upstream linux-nfs/nfs-utils.

For example: http://www.spinics.net/lists/linux-nfs/msg60640.html

You might want to keep an eye on things there.  -A

-- 
Anthony - https://messinet.com/ - https://messinet.com/~amessina/gallery
F9B6 560E 68EA 037D 8C3D  D1C9 FF31 3BDB D9D8 99B6

[Tom H]

On Thu, Dec 1, 2016 at 3:44 PM, Craig Lanning <craig.t.lanning(a)gmail.com&gt; wrote:
>  I am running:
>          Fedora 24
>          nfs-utils 1.3.4
>
>  All of this has worked in earlier versions of Fedora so I'm a little
>  confused.
>
>  I am trying to setup the NFS server and I need it to serve NFS v2. That
>  is the only protocol version that the client machine understands.  It's
>  OS was written before v3 existed.
>
>  I followed the instructions for setting it up.
>
>  The client can get the list of exported filesystems from the server,
>  but fails when it tries to access one of them.
>
>  The error says something about a "Remote module version mismatch."  I
>  was thinking that the server was only using NFS v3.  Is there something
>  else that the client might access that could have a version mismatch
>  besides the NFS protocol?
>
>  Have I missed something in setting up the NFS Server? 
Check the versions that are running with

(on the server)
cat /proc/fs/nfsd/versions
rpcinfo -s
rpcinfo -p

(on client)
rpcinfo -s <server>
rpcinfo -p <server>

If the first, for example, doesn't have "+2" in its output, you can
set the version(s) that you want to export via "/etc/sysconfig/nfs".