Resolving a BMC access problem

Learn how to identify the service action that is needed to resolve a baseboard management controller (BMC) access problem.

Procedure

  1. Ensure that the BMC password is not set to the default password. For information about changing the default password, see Logging on to the OpenBMC GUI. Does the problem persist?
    If Then
    Yes: Continue with the next step.
    No: This ends the procedure.
  2. Are both ends of the network cable seated securely?
    If Then
    Yes: Continue with the next step.
    No: Seat both ends of the cable securely. If the problem persists, continue with the next step.
  3. Power off the system and disconnect all AC power cords for 30 seconds. Then, reconnect the AC power cords and power on the system. Does the BMC access problem persist?
    If Then
    Yes: Continue with the next step.
    No: This ends the procedure.
  4. Verify that the BMC network settings are correct.
    1. Power on the system by using the power button on the front of the system. Wait 1 - 2 minutes for the system to display the Petitboot menu.
    2. When the Petitboot menu is displayed, press any key to interrupt the boot process. Then, select Exit to Shell.
    3. Type the following command and press Enter:

      ipmitool lan print 1

    4. Verify that the MAC address and the IP address settings are correct. Then, continue with the next step.
      Note: If the IP address setting is incorrect, go to Configuring the BMC IP address. If the MAC address is 00:00:00:00:00:00, go to Contacting IBM service and support.
  5. Complete the following actions:
    1. Power on to the Petitboot menu.
    2. Update the system firmware. For instructions, see Getting fixes.

    Are you able to access the BMC?

    If Then
    Yes: This ends the procedure.
    No: Continue with the next step.
  6. Complete the service action that is indicated for your system:
  7. Are all of the following conditions true?
    • The system is an 8335-GTH or 8335-GTX.
    • The system firmware level is OP940.20, or later.
    • You replaced the BMC card.

    Yes: Go to Updating the system firmware level of a BMC card to OP940.20, or later, in an 8335-GTH or 8335-GTX system.

    No: This ends the procedure