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22. If these recovery efforts fail, contact your IBM service support representative
In-band automated boot recovery method
Note: Use this method if the BOARD 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
2. Perform the firmware update by following the instructions that are in the
3. Restart the server.
4. At the firmware splash screen, press F3 when prompted to restore to the
Automated boot recovery (ABR)
While the server is starting, if the integrated management module detects problems
with the server firmware in the primary bank, the server automatically switches to
the backup firmware bank and gives you the opportunity to recover the firmware in
the primary bank. For instructions for recovering the UEFI firmware, see
"Recovering the server firmware" on page 253. After you have recovered the
firmware in the primary bank, complete the following steps:
1. Restart the server.
2. When the prompt Press F3 to restore to primary is displayed, press F3 to
Nx boot failure
Configuration changes, such as added devices or adapter firmware updates, and
firmware or application code problems can cause the server to fail POST (the
power-on self-test). If this occurs, the server responds in either of the following
ways:
v The server restarts automatically and attempts POST again.
v The server hangs, and you must manually restart the server for the server to
After a specified number of consecutive attempts (automatic or manual), the Nx
boot failure feature causes the server to revert to the default UEFI configuration and
start the Setup utility so that you can make the necessary corrections to the
configuration and restart the server. If the server is unable to successfully complete
POST with the default configuration, there might be a problem with the system
board.
To specify the number of consecutive restart attempts that will trigger the Nx boot
failure feature, in the Setup utility, click Settings > POST Attempt Limit. The
available options are 3, 6, 9, and 255 (disable Nx boot failure).
for support.
package that you downloaded.
firmware update package readme file.
primary bank. The server boots from the primary bank.
start the server from the primary bank.
attempt POST again.
255
Chapter 3. Diagnostics
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