5 firmware update, 1 updating the uefi bios, 1 uefi bios fail-over mechanism – Kontron AM4024e User Manual

Page 73: 2 updating procedure, Firmware update, Updating the uefi bios, Uefi bios fail-over mechanism, Updating procedure

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D R A F T — F O R I N

T E R N A L U S E O N L Y

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User Guide

AM4024(E)

4.

Save the start-up script to the SPI boot flash using the

kBootScript uEFI Shell command.

5.

Reset the board to execute the newly installed script using the

reset uEFI Shell command.

6.

If a script is already installed, it can be edited using the following

kBootScript uEFI Shell

commands.

9.5 Firmware Update

Firmware updates are typically delivered as a ZIP archive containing only the firmware images. The con-
tent of the archive with the directory structure must be copied on a data storage device with FAT par-
tition. If the command

kBoardConfig AutoUpdate has been enabled, the images are automatically

detected during boot-up and an update of the uEFI BIOS or the IPMI firmware is carried out.

9.5.1 Updating the uEFI BIOS

9.5.1.1 uEFI BIOS Fail-Over Mechanism

The AM4024(E) has two SPI boot flashes programmed with the uEFI BIOS, a standard SPI boot flash and
a recovery SPI boot flash. The basic idea behind that is to always have at least one working uEFI BIOS
flash available regardless if there have been any flashing errors or not.

9.5.1.2 Updating Procedure

The standard SPI boot flash can be updated with the latest uEFI BIOS from the ZIP archive using the
kUpdate -u or the kFlash -p uEFI Shell command. When using the kUpdate command, the directory
structure of ZIP archive must not be altered. The update status is indicated in the log file located in the
directory where the firmware images are stored.

myramdisk:\> kbootscript -p boot.nsh

myramdisk:\> reset

myramdisk:\> kbootscript -g boot.nsh

myramdisk:\> edit boot.nsh

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