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Table of Contents
Microcontrollers
AT Mega series
Operating Systems (ATmega/other 8-bits)
Linux 2.6.34, plus Ubuntu & X
boots Linux 2.6.34. It can even bring up a full Ubuntu, including (if you have the time) X/Gnome
An astonishing feat, done by emulating an ARM chip on this tiny little 8-bit chip. This conceivably could be done on any 8-bits. It does not even require a printed circuit board. Furthermore, upon booting (which takes ages), the system is actually quite usable!
https://www.youtube.com/watch?v=nm0POwEtiqE
https://dmitry.gr/?r=05.Projects&proj=07.%20Linux%20on%208bit
Aria G25 SoM
Operating Systems (ARM9 AT91SAM9G25)
Linux 2.6.39
a 1GB or greater microSD card
A manufacturer-provided demonstration of putting the Linux kernel on these little chips. The manufacturer also sells SD cards that already have a bootable Linux image.
https://www.acmesystems.it/aria (Chip info)
https://www.acmesystems.it/pricelist?category=aria (Purchase here)
ARM Cortex-M4s
Operating Systems (varies)
Linux
This is just a writeup outlining the technical characteristics of a Linux 2.6.33 port to a hypothetical Cortex microcontroller. Good for reference.