The Uefi Shell; Basic Operation Of The Uefi Shell; Entering The Uefi Shell; Exiting The Uefi Shell - Kontron pITX-iMX8M User Manual

Function
Restore User Defaults
Boot Override
UEFI: Built-in EFI Shell
Launce EFI Shell from filesystem
device

7.3. The uEFI Shell

The Kontron uEFI BIOS features a built-in and enhanced version of the uEFI Shell. For a detailed description of the
available standard shell scripting, refer to the EFI Shell User Guide. For a detailed description of the available
standard shell commands, refer to the EFI Shell Command Manual. Both documents can be downloaded from the EFI
and Framework Open Source Community homepage (http://sourceforge.net/projects/efi-shell/files/documents/).
Kontron uEFI BIOS does not provide all shell commands described in the EFI Shell Command
Manual. If Secure Boot is enabled, the UEFI shell may not be able to be entered.

7.3.1. Basic Operation of the uEFI Shell

7.3.1.1. Entering the uEFI Shell

To enter the uEFI Shell, follow the steps below:
1.
Power on the board.
2. Press the <F7> key (instead of <DEL>) to display a choice of boot devices.
3.
Choose 'UEFI: Built-in EFI Shell'.
EFI Shell version 2.50 [5.12]
Current running mode 1.1.2
Device mapping table
fs0 :Removable HardDisk – Alias hd18c0b blk0
PciRoot(0x0)/Pci(0x15,0x0)/USB(0x2,0x0)/HD(1,MBR,0x0002B27D,0x3F,0x785BEC)
blk0 :Removable HardDisk – Alias hd18c0b fs0
PciRoot(0x0)/Pci(0x15,0x0)/USB(0x2,0x0)/HD(1,MBR,0x0002B27D,0x3F,0x785BEC)
blk1 :Removable BlockDevice – Alias (null)
PciRoot(0x0)/Pci(0x15,0x0)/USB(0x2,0x0)
Press the ESC key within 5 seconds to skip startup.nsh, and any other key to continue.
4. The output produced by the device-mapping table can vary depending on the board's configuration.
5. If the ESC key is pressed before the 5 second timeout elapses, the shell prompt is shown:
Shell>

7.3.1.2. Exiting the uEFI Shell

To exit the uEFI Shell, follow one of the steps below:
1. Use the exit uEFI Shell command to select the boot device, in the Boot menu, that the OS will boot from.
2. Reset the board using the reset uEFI Shell command.
Description
pITX-iMX8M – Rev. 0.1 Preliminary
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