Kontron AM4022 uEFI BIOS - Manual (Page 71)

AM4022 uEFI BIOS The uEFI Shell
ID 1052-1333, Rev. 1.0 Page 65
6.3.3.4 Handling the Startup Script in the Flash Bank
In case there is no mass storage device attached, the startup script can be generated in a RAM
disk and stored in the flash bank using the following instructions:
1. Press <ESC> during power-up to log into the uEFI Shell.
2. Create a RAM disk and set the proper working directory as shown below:
3. Enter the sample start-up script mentioned above in this section using the edit uEFI Shell
command.
4. Save the start-up script to the uEFI flash bank using the kbootnsh uEFI Shell command.
5. Reset the board to execute the newly installed script using the reset uEFI Shell com-
mand.
6. If a script is already installed, it can be edited using the following kbootnsh uEFI Shell
commands.
Shell> kmkramdisk -s 3 myramdisk
Shell> myramdisk:
myramdisk:\> edit boot.nsh
myramdisk:\> kbootnsh -p boot.nsh
myramdisk:\> reset
myramdisk:\> kbootnsh -g boot.nsh
myramdisk:\> edit boot.nsh