UEFI Power Off Module

A simple UEFI application that powers off the system when loaded. Written in Rust with minimal dependencies and no unsafe code.

Purpose

This application is designed to be loaded by UEFI firmware and will immediately trigger a system shutdown. This provides a quick and convenient way to power off a system from:

A bootable USB drive
A UEFI shell
UEFI HTTP boot
Any EFI-capable firmware interface

Building

Prerequisites

Rust 1.81+ toolchain

The project includes a rust-toolchain.toml file that automatically installs the required x86_64-unknown-uefi target.

Steps

To build the project:

cargo build --release --target=x86_64-unknown-uefi

The resulting EFI file will be located at target/x86_64-unknown-uefi/release/poweroff.efi.

The --target option is likely optional for any tools that respect .cargo/config.toml.

License