Help with rtems nfs mounting

["Miceli, Antonino via Tech-talk" <tech-talk at aps.anl.gov>]

Hi, 

I have some legacy rtems IOCs. I can't get the NFS mount to work after our IT upgraded to RHEL9. So, they setup an RHEL8 VM with nfs v2 activated.  They say it is working:

[root@dplab ~]# mount -o vers=2 rtems-dserv:/xorApps  /mnt

[root@dplab ~]# mount | grep mnt

rtems-dserv:/xorApps on /mnt type nfs (rw,vers=2,addr=10.54.100.9)

But not of the IOC below.... 

Any advices on debugging this?

B$ printenv

FACTORY=Arcturus Networks Inc.

REVISION=uC5282-16E16C64

SERIAL=X4CB88918-01660

CONSOLE=ttyS0

KERNEL=0:linux.bin

KERNEL_ARGS=root=/dev/mtdblock0 quiet

HWADDR0=00:06:3b:01:36:60

FW_VERSION=010809000

RAMIMAGE=yes

CACHE=on

_0=10000000:400000:RW

BOOTFILE=/xorApps/epics/synApps_5_3/ioc/dth/bin/RTEMS-uC5282/dthApp.boot

CMDLINE=/xorApps/epics/synApps_5_3/ioc/dth/iocBoot/iocdth3/st.rtems.cmd

NETMASK=255.255.255.0

AUTOBOOT=20

HOSTNAME=iocdth3

IPADDR0=10.54.112.70

GATEWAY=10.54.112.1

NAMESERVER=10.54.100.9

SERVER=10.54.100.9

NTPSERVER=10.54.100.9

NFSMOUNT=10.54.100.9:/xorApps:/xorApps

B$ go!

go!: command not found

B$ go

Copy...done

go! 0x40000

***** Initializing network *****

Startup after Software reset.

fs1: Ethernet address: 00:06:3b:01:36:60

***** Initializing NFS *****

This is RTEMS-RPCIOD Release $Name: rtems-addon-packages-4-7-1 $

($Id: rpcio.c,v 1.4 2006/08/30 13:52:10 joel Exp $)

Till Straumann, Stanford/SLAC/SSRL 2002

See LICENSE file for licensing info

This is RTEMS-NFS Release $Name: rtems-addon-packages-4-7-1 $

($Id: nfs.c,v 1.3 2006/06/20 00:36:25 ericn Exp $)

Till Straumann, Stanford/SLAC/SSRL 2002

See LICENSE file for licensing info

Trying to mount 10.54.100.9:/xorApps on /xorApps

RPCIO: server '10.54.100.9' not responding - still trying

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

***** Initializing NTP *****

    *************** WARNING ***************

    ***** NO RESPONSE FROM NTP SERVER *****

    *****  TIME SET TO DEFAULT VALUE  *****

    ***************************************

***** Starting EPICS application *****

#------------------------------------------------------------------------------

# RTEMS startup file for the uCDIMM

#------------------------------------------------------------------------------

#------------------------------------------------------------------------------

# NFS mount external file systems

< ../nfsCommands

#nfsMount s100dserv.xray.aps.anl.gov /APSshare /APSshare

nfsMount rtems-dserv.xray.aps.anl.gov /APSshare /APSshare

nfsMount: host 'rtems-dserv.xray.aps.anl.gov' not found

#------------------------------------------------------------------------------

Thanks, 

Nino