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FusionServer Pro E9000 Server iBMC (V250 to V259) User Guide 19

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Restoring Default iBMC Settings

Restoring Default iBMC Settings

Scenario

Restore the default iBMC settings when the iBMC configuration data is damaged or the iBMC cannot start or be accessed.

  • Only Huawei technical support personnel or personnel authorized by Huawei can perform this operation.
  • Default iBMC settings can only be restored on-site.
  • All user settings, including user names, passwords, and IP addresses, will be restored to defaults. Perform this operation with caution.
  • Back up data and network before restoring iBMC default settings.

Default iBMC configurations can be restored using U-Boot commands or the jumper. Table 6-1 lists the product models and supported restoration methods.

NOTE:

The following methods are available to restore default iBMC configurations of the iBMC:

  • Use the U-Boot commands to restore the default iBMC configurations if you can log in to the U-Boot over a serial port.
  • Use a jumper to restore the default iBMC configurations if the U-Boot and iBMC are inaccessible.
Table 6-1 Product models and supported restoration methods

Product Model

U-Boot

Jumper

CH121 V3

Supported

Supported

CH121H V3

N/A

Supported

CH140 V3

N/A

Supported

CH220 V3

Supported

N/A

CH222 V3

Supported

Supported

CH225 V3

Supported

Supported

CH226 V3

N/A

Supported

CH242 V3 DDR4

Supported

Supported

CH121 V5

N/A

Supported

CH121L V5

N/A

Supported

CH221 V5

N/A

Supported

CH225 V5

N/A

Supported

CH242 V5

N/A

Supported

CX220

Supported

N/A

CX318

Supported

N/A

CX620

Supported

Supported

CX621

Supported

Supported

CX710

Supported

N/A

CX820

Supported

Supported

CX916

Supported

Supported

CX916L

Supported

Supported

CX920

Supported

Supported

Procedure

  • To restore iBMC default settings using U-Boot commands, perform the following steps:
    1. Use PuTTY to log in to the server.

      For details, see 6.1 Logging In to a Server Over the Serial Port Using PuTTY.

    2. Press and hold the UID button on the server for 6 seconds to restart the iBMC.
    3. When "Hit 'ctrl + b' to stop autoboot: 1" is displayed, press Ctrl + B.
    4. Enter the default U-Boot password.

      The default password of U-Boot is Huawei12#$ for V3 servers and Admin@9000 for V5 servers.

      If "u-boot>" is displayed, you have successfully logged in to U-Boot.

    5. Run the following command to query the U-Boot version:

      printenv ver

    6. Restore datafs.
      • If the U-Boot version is 1.1.37 or earlier, run the following commands:

        fsload /usr/upgrade/datafs.jffs2

        datafs_cp

      • If the U-Boot version is later than 1.1.37, run the following command:

        datafs_reset

    7. Run the following command to restart the iBMC:

      reset

      The restart process takes about 3 minutes. After the iBMC restarts, the iBMC default settings are restored.

  • To restore iBMC default settings using the jumper, perform the following steps:
    1. Back up data.

      Back up data and network before restoring iBMC default settings.

    2. Locate the jumper.
      Table 6-2 provides the jumper ID and silkscreen information. For details about the location of the jumper, see "Mainboard Layout" in the user guide of the server you use.
      Table 6-2 Jumper ID and silkscreen

      Product Model

      Jumper ID

      Silkscreen

      CH121 V3

      J19

      JTAG SW

      CH121H V3

      J19

      CLR_BMC_PW

      CH140 V3

      J19

      JTAG SW

      CH222 V3

      J19

      JTAG SW

      CH225 V3

      J19

      JTAG CLR_PSW

      CH226 V3

      J19

      JTAG SW

      CH242 V3 DDR4

      J2

      SYS_RST

      CH121 V5

      J76

      CLR_BMC_PW

      CH121L V5

      J76

      CLR_BMC_PW

      CH221 V5

      J76

      CLR_BMC_PW

      CH225 V5

      J76

      CLR_BMC_PW

      CH242 V5

      J76

      CLR_BMC_PW

      CX620

      J19

      CLEAR_PW

      CX621

      J19

      CLEAR_PW

      CX820

      J6

      CLEAR_BMC

      CX916

      J22

      CLR_BMC_PW

      CX916L

      J22

      CLR_BMC_PW

      CX920

      J34

      CLR_BMC_PW

    3. Use a jumper cap or a tool to short-circuit the jumper.
    4. Install the compute node or switch module in its original slot while the jumper is short-circuited, and restart the iBMC.

      The restart process takes about 3 minutes. After the iBMC restarts, the iBMC default settings are restored.

      After the compute node is installed, determine whether you need to manually start the OS based on the System State Upon Power Supply. For details about how to start the OS, see the user guide of the compute node you use.

      After the switch module is installed, the switch plane automatically starts.

      NOTE:

      Disconnect the jumper after the iBMC default settings are restored. Otherwise, the default settings are restored each time when the iBMC restarts.

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Updated: 2019-08-01

Document ID: EDOC1000157052

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