menu
techminis

A naukri.com initiative

google-web-stories
source image

Ubuntu

1d

read

282

img
dot

Paul Tagliamonte: boot2kier

  • Paul Tagliamonte wrote a UEFI binary for a joke in his work's slack instance, aiming to boot directly to an image of Kier Eagan.
  • He used the uefi crate to create the binary, making the process surprisingly easy and clean.
  • To circumvent an issue with the image crate not building against the uefi target, he used ImageMagick for pre-computing pixels from a jpg.
  • He compiled the image into the Rust binary and wrote code to handle moving bytes and displaying on the UEFI GOP.
  • The process involved setting up the UEFI GOP through the UEFI crate and capping the resolution to match the display.
  • After successful testing in QEMU, he then proceeded to test the UEFI binary on a physical machine by formatting a USB stick and booting from it.
  • Steps included formatting the USB, disabling Secure Boot, signing the UEFI binary, and booting the system successfully with Secure Boot enabled.
  • He acknowledged the advancements in UEFI protocols and tooling, appreciating the ease and maturity of the process.
  • In conclusion, Tagliamonte highlighted the joy of working on custom UEFI binaries, praising the uefi crate and the overall experience.
  • Overall, the project was successful, showcasing the progress and effectiveness of modern UEFI booting compared to traditional kernel booting.

Read Full Article

like

17 Likes

For uninterrupted reading, download the app