In EFI/ UEFI shell how to reboot or shutdown the system?

Having consulted resources related to the commands available in a UEFI/EFi Shell I cannot find two commands I would expect to be available

1. reboot
2. poweroff/halt/shutdown

What am I missing here? (can it be that EFI shell is somewhat overengineered, but lacks basic functionality?)

1 Answer

The command reset will do both poweroff and reboot. From the UEFI Shell Specification

reset

Summary

Resets the system.

Usage

reset [-w|-s|-c [string]] [-fwui]

Options

-s

• Performs a shutdown

-w

• Performs a warm boot

-c

• Performs a cold boot

string

• String to be passed to reset service

-fwui

If the system firmware supports it, perform a reset back to the firmware user interface (FW UI)

Examples

To shut down the system:

Shell> reset -s

To cold reset the system and stop boot at the firmware user interface:

Shell> reset –c -fwui