18

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, or shutdown

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

Peter Mortensen
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fraleone
  • 313

1 Answers1

21

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

lx07
  • 3,266