If you are running an i486 CPU, you will want to read this. 

https://itsfoss.com/news/linux-kernel-i486-cpu-support-removal/

#linux

The Linux Kernel is Finally Letting Go of i486 CPU Support

The support remained in the Linux kernel all these years after every other major platform dropped it.

It's FOSS
@itsfoss I'll light a cyno today. That was the first CPU I learned.