복구 UEFI & IMM recovery jumper

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In-band manual recovery method
To recover the server firmware and restore the server operation to the primary
bank, complete the following steps:
1. Turn off the server, and disconnect all power cords and external cables.
2. Remove the server cover. See “Removing the cover” on page 170 for more
information.
3. Locate the UEFI boot recovery jumper block (J29) on the system board.

 

 

152 IBM System x3550 M2 Type 7946: Problem Determination and Service Guide
4. Move the jumper from pins 1 and 2 to pins 2 and 3 to enable the UEFI
recovery mode.
5. Reinstall the server cover; then, reconnect all power cords.
6. Restart the server. The power-on self-test (POST) starts.
7. Boot the server to an operating system that is supported by the firmware
update package that you downloaded.
8. Perform the firmware update by following the instructions that are in the
firmware update package readme file.
9. Copy the downloaded firmware update package into a directory.
10. From a command line, type filename-s, where filename is the name of the
executable file that you downloaded with the firmware update package.
11. Turn off the server and disconnect all power cords and external cables, and
then remove the server cover.
12. Move the UEFI boot recovery jumper back to the primary position (pins 1 and
2).
13. Reinstall the server cover, and then reconnect all the power cables.
Chapter 3. Diagnostics 153
14. Restart the server.

In-band automated boot recovery method
Note: Use this method if the BRD LED on the light path diagnostics panel is lit and
there is a log entry or Booting Backup Image is displayed on the firmware splash
screen; otherwise, use the in-band manual recovery method.
1. Boot the server to an operating system that is supported by the firmware update
package that you downloaded.
2. Perform the firmware update by following the instructions that are in the
firmware update package readme file.
3. Restart the server.
4. At the firmware splash screen, press F3 when prompted to restore to the
primary bank. The server boots from the primary bank.
Out-of-band method: See the IMM documentation.