Secure Boot: How to extract nVidia UEFI boot option ROM from "vBIOS" to generate hash for custom PK, KEK, db? (black screen upon boot without "Microsoft Corporation UEFI CA 2011" in db, which I do not want)

• UEFIRomExtract

  2 55 0.0 C

  UEFI Video Card ROM Extractor

My idea: Extract the boot option ROM from the GPU, calculate the hash and add it (with the corresponding GUID of nVidia) to the signature database (db), to allow this single GPU in my system. Extracting the vBIOS ROM is no real issue (I used nvflash via Windows, since it takes care for everything like unregistering the GPU from the system while extracting the vBIOS). Extracting the UEFI part from this blob however is not so straight forward. I found this quite old program called UEFIRomExtract. But I only get an error like

• gpu-passthrough-for-clevo-p650hp6

  1 4 0.0 Python

  A rundown of steps taken and decisions made in an attempt to achieve GPU passthrough on the Metabox Prime P650HP laptop

I found a "GOP Update Tool" (GOPupd.py) in a zipfile posted on win-raid.com. I seriously have no idea, where this file originates from. A copy of that file can be found in another random github repo here.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• fiedka

  2 95 5.1 JavaScript

  a visual toolkit for exploring and editing firmware images, running on web platforms

  

Since the log is purely binary, one has to extract the data first according to this manual.

Suggest a related project