[Info-vax] Problem with Multinet NFSMOUNT.

[Fred. Zwarts]

We are still running an small cluster with VAX (VMS 7.3) and Alpha (VMS 
7.3-1) systems.
These systems run Multinet 5.0.
These systems mount an NFS file system on a Linux server. For more than 
three years we did not reboot these system.
This week there was a power outage and all systems were restarted. Now 
they fail to mount the NFS file system on the Linux server.
I hope that someone has seen this problem before and knows a work-around.

Here is the command and the error message:

$ NFSMOUNT /soft /timeout=100 /transport=(UDP,TCP) -
     "unix-file.kvi.nl::/usr/local/kvi" UNIX_KVI /volume=UNIX_KVI -
     /SEMANTICS=(NOVMS_ACCESS)
%NFSMOUNT-F-NONFSRESPONSE, NFS server on "unix-file.kvi.nl" not 
responding: RPC:
  Program/version mismatch; low version = 3, high version = 3

(The error is immediate. There is no time-out of 10 seconds.)

Other Linux systems have no problem to mount this NFS file system.

The VMS systems have not been changed on the system level, so I suspect 
that the Linux server has been upgraded several time in these years and 
that now there is an incompatibility between the VMS Multinet client and 
the Linux server.
The NFS server supports NFS version 3. Support for NFS version 4 is 
disabled.
The NFS configuration on the Linux server in the /etc/exports file has 
not been changed, the /etc/exports file shows:

/usr/local/kvi \
         kviasv.kvi.nl(rw,sync,no_root_squash,no_subtree_check) \

It might be that a newer Linux version has different defaults for 
unspecified options, so I show here also the output of the exportfs command:

/usr/local/kvi 
kviasv.kvi.nl(rw,wdelay,no_root_squash,no_subtree_check,sec=sys,rw,secure,no_root_squash,no_all_squash)

Information about the Linux rpc:
  # rpcinfo -p
    program vers proto   port  service
     100000    4   tcp    111  portmapper
     100000    3   tcp    111  portmapper
     100000    2   tcp    111  portmapper
     100000    4   udp    111  portmapper
     100000    3   udp    111  portmapper
     100000    2   udp    111  portmapper
     100005    1   udp  20048  mountd
     100005    1   tcp  20048  mountd
     100005    2   udp  20048  mountd
     100005    2   tcp  20048  mountd
     100005    3   udp  20048  mountd
     100005    3   tcp  20048  mountd
     100007    2   udp    626  ypbind
     100007    1   udp    626  ypbind
     100007    2   tcp    627  ypbind
     100007    1   tcp    627  ypbind
     100024    1   udp  56005  status
     100024    1   tcp  37025  status
     100003    3   tcp   2049  nfs
     100227    3   tcp   2049  nfs_acl
     100003    3   udp   2049  nfs
     100227    3   udp   2049  nfs_acl
     100021    1   udp  44521  nlockmgr
     100021    3   udp  44521  nlockmgr
     100021    4   udp  44521  nlockmgr
     100021    1   tcp  42729  nlockmgr
     100021    3   tcp  42729  nlockmgr
     100021    4   tcp  42729  nlockmgr

Information about the Linux version:

  # more /etc/*rele*
::::::::::::::
/etc/SuSE-release
::::::::::::::
SUSE Linux Enterprise Server 12 (x86_64)
VERSION = 12
PATCHLEVEL = 4
# This file is deprecated and will be removed in a future service pack 
or release.
# Please check /etc/os-release for details about this release.
::::::::::::::
/etc/os-release
::::::::::::::
NAME="SLES"
VERSION="12-SP4"
VERSION_ID="12.4"
PRETTY_NAME="SUSE Linux Enterprise Server 12 SP4"
ID="sles"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:suse:sles:12:sp4"

  # uname -a
Linux SRV003 4.12.14-95.45-default #1 SMP Wed Dec 11 13:09:13 UTC 2019 
(12c8180) x86_64 x86_64 x86_64 GNU/Linux

  # cat /proc/version
Linux version 4.12.14-95.45-default (geeko at buildhost) (gcc version 4.8.5 
(SUSE Linux) ) #1 SMP Wed Dec 11 13:09:13 UTC 2019 (12c8180)

Any suggestion?

Fred.Zwarts.

-- 
Paradoxes in the relation between Creator and creature.
<http://www.wirholt.nl/English>.