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All Projects → google → Pawn

google / Pawn

Licence: apache-2.0
Extract BIOS firmware from Intel-based workstations and laptops

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firmwareuefibios

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Pawn BIOS Dumping Tool

Copyright 2014-2021 Google LLC.

Linux Build Status

Disclaimer: This is not an official Google product (experimental or otherwise), it is just code that happens to be owned by Google.

What is it?

Pawn is a tool to extract the BIOS firmware from Intel-based workstations and laptops. The name is a play on an internal tool that is also named after a chess piece.

How to Build

Dependencies:

  • Linux on x86_64 (uses /dev/mem). FreeBSD might also work.
  • GCC >= 7 or Clang >= 7
  • CMake >= 3.14
  • Ninja or GNU Make

To build:

mkdir -p build && cmake -S . -B build
cmake --build build/

The resulting binary can be found in build/pawn/pawn.

Usage

The following command will extract the BIOS firmware and save the image to bios_image.bin:

sudo build/pawn/pawn bios_image.bin

Note: When running a Linux kernel > 4.8.4, make sure that either CONFIG_IO_DEVMEM=n is set or that you've booted with the iomem=relaxed boot option.

After extraction, you can then use other tools like UEFITool to process the firmware image further.

Note that the project description data, including the texts, logos, images, and/or trademarks, for each open source project belongs to its rightful owner. If you wish to add or remove any projects, please contact us at [email protected].