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Alberto Ruiz

@aruiz@mastodon.social

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I work on kernel, virtualization and graphics for automotive as Sr. Engineering Manager @redhat@mastodon.social

(x #AWS #canonical #codethink #SunMicrosystems)
@Gnome@mastodon.social contributor
@rustlang@mastodon.social enthusiast
💨☀️💧⚛️ - 🦀👣

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Joined October 28, 2022

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Alberto Ruiz @aruiz@mastodon.social · Apr 03, 2026

Replying to @aelin@donotsta.re

@aelin@donotsta.re please, do let me know what you think

Alberto Ruiz @aruiz@mastodon.social · Mar 19, 2026

Replying to @artemist@social.mildlyfunctional.gay

@artemist@social.mildlyfunctional.gay some boot protocols are a total mistery, indeed

Alberto Ruiz @aruiz@mastodon.social · Mar 18, 2026

Replying to @tris@chaos.social

@tris@chaos.social Someone pointed it out to me on linked in yes. Not sure I see the value beyond it being in Rust, systemd-boot is 10k big and we have smaller things like https://gitlab.com/CentOS/automotive/src/ukiboot

Alberto Ruiz @aruiz@mastodon.social · Mar 18, 2026

Replying to @siosm@floss.social

@siosm@floss.social strictly speaking.... I could support actual UKI capsules if I imported an PE parser :)

Alberto Ruiz @aruiz@mastodon.social · Mar 18, 2026

I wrote a bootloader in Rust that boots Linux on IBM PowerVM — no C, no GRUB, no standard library. Just #![no_std] Rust talking directly to Open Firmware, parsing FAT and ISO9660, loading ELF kernels using UAPI BLS spec, and jumping to them with inline assembly. The hardest part? The firmware has a secret limit on memory allocations that nobody documents.

https://siliconislandblog.wordpress.com/2026/03/18/booting-with-rust-chapter-3/

Silicon Island

Booting with Rust: Chapter 3

In Chapter 1 I gave the context for this project and in Chapter 2 I showed the bare minimum: an ELF that Open Firmware loads, a firmware service call, and an infinite loop. That was July 2024. Sinc…

Alberto Ruiz @aruiz@mastodon.social · Feb 06, 2026

Replying to @jeppe@mastodon.social

@jeppe@mastodon.social @ecomba@ruby.social @randahl@mastodon.social sounds fair to me that an instance moderator has to comply with reasonable accountability laws for infrastructure that shapes society at large

Alberto Ruiz @aruiz@mastodon.social · Feb 06, 2026

Replying to @ecomba@ruby.social

@ecomba@ruby.social @jeppe@mastodon.social @randahl@mastodon.social It is rather simple, if a node in the federation allows or amplifies that type of content, you ban the node from the fediverse

Alberto Ruiz @aruiz@mastodon.social · Feb 24, 2023

This is the most trandescental, ambitious, rich and promising collaboration effort that the GNOME Foundation and the KDE e.V. had ever done.

Congrats to everyone involved in pushing this.

https://github.com/PlaintextGroup/oss-virtual-incubator/blob/main/proposals/flathub-linux-app-store.md

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Alberto Ruiz

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Booting with Rust: Chapter 3

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