Table of Contents
Embedded
Operating systems primarily tailored for embedded systems. Like the “conventional” OSes, a large variety of architectures can be featured here.
Various
High Level Depth
3340 embedded linux guide
Another excellent guide for getting the ropes of Embedded Linux.
https://www.thirtythreeforty.net/posts/2019/08/mastering-embedded-linux-part-1-concepts/
jaycarlson embedded-linux
A long and very informative writeup about Embedded Linux, primarily but not necessarily focused on ARM.
RISC-OS
An OS for various little microcontrollers and boards, originating from Acorn and their development of the ARM platform.
Various Links
A bunch of links to 90s era Linux embedded OS projects, from linuxjournal.
https://www.linuxjournal.com/files/linuxjournal.com/linuxjournal/articles/039/3980/3980s1.html
yoctoproject
A project aiming to put Linux on many embedded systems, without being restricted by the architecture of said system.