Upgrading CMM Firmware

You can upgrade or downgrade a CMM firmware version. In a Dual Chassis configuration, you can upgrade the CMMs on the Standby Chassis first. You then fail over the currently Active Chassis and upgrade it. After the upgrade or downgrade, all CMMs in both Chassis must have the same firmware version.

Note: At certain points during this procedure, the Chassis will not have a functional CMM. At these times, hardware monitoring data is not collected and the Chassis fans rotate at maximum speed.

To Upgrade/Downgrade CMM Firmware on a Chassis:

1. Change the Chassis to the Administrative Down status:

   > asg chassis_admin –c <Chassis_id> down

2. Connect to an SGM with SSH or serial console to the DOWN Chassis.
3. Download the applicable firmware version to an SGM.
4. Copy and extract the file to the SGM (that contains the firmware file) to: /var/log
5. Remove all CMMs from the Chassis.
6. Reinstall one CMM into the Chassis.
7. Copy the firmware files from the SGM to the CMM /tmp directory and run:

   # scp sentry.shmm500.* admin@198.51.100.33:/tmp/

   The password is: admin

8. Open a console connection to the serial port on the CMM front panel.
   (Use the Default parameters: 9600,8,N,1)
9. Run # ls /tmp

   This makes sure that all upgrade files ("sentry" files) were successfully copied to the CMM.

10. Run these commands:

    # cd /tmp
# setenv rc2 /etc/rc.asis
# clia terminate
# rupgrade_tool -s -v --r=sentry.shmm500.rfs --k=sentry.shmm500.kernel
--u=sentry.shmm500.u-boot --hook=erase

    Note: We recommend that you type this command. Because of the length of the command, copy/paste can cause unexpected behavior.

11. Run the firmware installation script:
    # install.sh
12. Do the instruction on the screen.

    When prompted, select the applicable Chassis parameters:
    See sk91980 – "Chassis ID validation" for more information about the PSU type.
    -----------------------------------------------------------------
| Select one of following options. |
| 1: Press 1 for AC1(Telkoor) or DC. |
| 2: Press 2 for AC2(Lambda). |
| 3: Press 3 for DC power records. |
-----------------------------------------------------------------

    -----Power records Modification -----
| 1: Press 1 for AC power records. |
| 2: Press 2 for DC power records. |
| 3: Press 3 to skip. |
-------------------------------------

    ----------EEprom upgrading-----------
| 1: Press 1 for EEProm upgrading. |
| 2: Press 2 to skip. |
-------------------------------------

    Note: The screens that show can be slightly different.

13. If the Chassis ID is "2", change the Chassis ID setting:

    # sed -i 's/CHASSID="1"/CHASSID="2"/g' /etc/shmm.cfg

    # reboot

14. If you changed the Chassis ID:
    1. Remove all SGMs from the Chassis.
    2. Re-install all SGMs into the Chassis.
15. Login with SSH to one of the SGMs in the Down Chassis and run:

    > asg_version -i

16. If it is necessary to upgrade the second CMM, do steps 5 - 13 on the second CMM.

    It is not necessary to remove and install the SGMs again.

17. Insert the second CMM into the Chassis.
18. Make sure that the Active and Standby CMM both have the same firmware version.
    1. Login via SSH to one of the SGMs.
    2. Run:

       > asg_version -i

19. Change the Chassis back to UP:

    > asg chassis_admin -c <Chassis_id>