rust-raspberrypi-OS-tutorials VS buildroot

I am very interested in this tutorial for building an OS for the Raspberry Pi in Rust: https://github.com/rust-embedded/rust-raspberrypi-OS-tutoria...

I'd love to try it out when (if ever) I have the time.

I like rust, low level and embedded hacking so I programmed a simple "kernel", based on this: https://github.com/rust-embedded/rust-raspberrypi-OS-tutorials

So every week, I basically followed along these tutorials. I didn't even made an effort to fully understand the code I was copying, as I just didn't want to waste mental energy on it as I wanted that energy and time wasted on my focus at the time (C++ and JS). I did that for like a year, doing 1-3 tutorials/week from that site. Over the course of it, I got to build web apps, several compilers, several games mostly board games/3d shooters/2d multiplayer games, raytracers, peer to peer apps, building a networking stack, bots, blockchain apps, servers, PGP encryption, E2E encryption apps such as for messaging, built a NES emulator, virtual machines, simulators and graphics programming, etc. I'd say the longest one was learning to build a tiny OS on raspberry pi

Hello everyone, I'm not sure if this is possible, but I'll give it a shot. I have a raspberry PI zero and a linux host pc. I am trying to run stuff on the raspberry on bare metal, no OS below it (using this tutorial https://github.com/rust-embedded/rust-raspberrypi-OS-tutorials/). Now in the tutorial 4 there is a step "flash the kernel onto SD card and insert the SD card into the raspberry". Now, given my lack of SD card adapter (I'm also curious) I wanted to ask if it is possible to deliver this kernel onto the raspberry without the SD card using USB.

I believe it already exists: https://github.com/rust-embedded/rust-raspberrypi-OS-tutorials

Is this just an alternative UI for GitHub but without the files? Am I missing something obvious? I'm confused.

Actual github repo for anyone looking for the files: https://github.com/rust-embedded/rust-raspberrypi-OS-tutoria...

I did it few times. It's so much easier nowadays with https://buildroot.org/

If you dig through the rootfs of the K1 it becomes clear that Creality is using buildroot so we should be able to do that ourselves - at least some of us.

An embedded system like Roku doesn't need to "run everything", it just needs to run their "platform", which is probably quite small. It's pretty trivial to assemble your own OS from "off-the-shelf" components. You can use something like buildroot to spin up a new OS in half a day, using only the components you want. You can also use "smaller" components that have far fewer features, meaning less bugs and less updates.

https://github.com/buildroot/buildroot

> I do this for every Windows installation that is used for similar purposes, like embedded machines that has to run a single application, virtual machines, etc.

Have you tried running Linux for these use cases? This sort of thing is an area Linux excels, in my experience.

When you run Windows, you're in for the whole kit and caboodle. Most of the components are proprietary, closed-source black boxes. You can only poke and prod and test and hope things don't break in unexpected ways.

Conversely, Linux can be easy stripped down to a bare bones kernel and a single statically-linked binary. I can run a useful application on top of Linux with the whole system weighing in smaller than bootmgfw.efi.

Something more complex, but still custom, is easily crafted with Buildroot.

https://buildroot.org/

Have a look at the commit history of Linux or buildroot for nice readable commit histories.

Gentoo could teach you more about what is involved in dependency handling and actual ‘construction’ of a Linux system. But Linux From Scratch is a much better teaching tool for learning this, and even things like Buildroot are arguably better than Gentoo for this because they generally force you to care about a lot of the stuff that Gentoo hides away to make the system nicer to use.