SBC35-427/Embedded Controller (EC) Update with UEFI Shell
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9. When the update program completes, power cycle the platform to
force the new BIOS image to load and execute.
10. Verify that the BIOS update was successful by comparing the displayed
BIOS version with the version specified in the BIOS update notification.
3.
Embedded Controller (EC) Update with UEFI Shell
This section describes the process for updating the SBC35-427 embedded
controller (EC) image using the built-in Unified Extensible Firmware
Interface (EFI or UEFI for short) shell.
3.1
Process
1. Insert a USB flash drive containing the EC update program into a USB
socket on the SBC35-427 platform.
2. Turn on the SBC35-427 and press the
ESC
or
DEL
key during the boot
process, which starts the BIOS setup utility.
3. In the BIOS setup utility, use the cursor keys to highlight the
Save &
Exit
menu option.
4. 4. Use the cursor keys to select
UEFI: Built-In EFI Shell
from the list of
boot devices displayed under the Boot Override section.
5. 5. Press
Enter
.
The SBC35-427 executes the built-in UEFI shell, and displays a list of
attached storage devices. The USB flash drive shows up in the list;
depending on other boot devices attached, it may be listed as
fs0
,
fs1
,
etc.
6. 6. From the UEFI shell command prompt, enter the following
command where
N
is the number of the fs device representing the USB
flash drive:
fsN:
The shell prompt changes to indicate that device fsN is now the active
storage device. Example:
fs1:
7. Execute the following command:
ls
The output of the
ls
command is similar to the display listing available
with the Linux or MS-DOS list directory command. If the correct
storage device was selected above, the
ls
command should show the
EC update program in the directory listing obtained with the
ls
command.
