Re: Help with rtems nfs mounting

["Johnson, Andrew N. via Tech-talk" <tech-talk at aps.anl.gov>]

The APS Accelerator Controls group has the same hardware that Nino is using booting RTEMS-4.9 and 4.10 from the standard NFSv2 server on RHEL-8.8 with no problems, we just had to enable vers2 and udp in the /etc/nfs.conf file. I suspect there may be other issues with his network connections or port settings (Nino: I gave Troy some ideas after you posted here).

 

- Andrew

 

 

 

On 9/6/24, 4:16 PM, "Tech-talk" <tech-talk-bounces at aps.anl.gov> wrote:

 

I can't help with the debugging but I have made RTEMS5 and 6 connect to NFSv2 using a user space NFSv2 driver running on RHEL8.

 

At DLS we are still running RHEL 7 to serve NFSv2 to our VxWorks and RTEMS IOCs. However we have been looking to retire those servers.

 

I have had success with the user space NFSv2 running in a container in Kubernetes. However you could also try compiling the driver natively using the steps in the Dockerfile. See epics-containers/nfsv2-tftp-server: User space NFSv2 and TFTP server for experimenting with RTEMS booting (github.com)

 

Copying Alex: as you were planning to test switching on NFSv2 on RHEL8 I thought you might be interested to hear that there may be issues.

 

Cheers,

giles

---

From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Miceli, Antonino via Tech-talk <tech-talk at aps.anl.gov>
Sent: 06 September 2024 21:27
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: Help with rtems nfs mounting

 

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 

 

 

 

 

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