Changelog

This repository contains a step-by-step guide that teaches how to create a simple operating system (OS) kernel from scratch. I call this OS Raspberry Pi OS or just RPi OS. The RPi OS source code is largely based on Linux kernel, but the OS has very limited functionality and supports only Raspberry PI 3. 6 lessons available with 5 more on the roadmap.

I use the history command all the time, but I've never really dug in to it to see what all is possible. If you're in a similar spot, this article by Steve Morris is a good primer. 👌

Graphpath is a shining example of the Unix philosophy's virtues. it's just a shell script using standards tools (route, arp and ifconfig on *BSD and ip on Linux) The results? Super useful.

For those coming off the heels of The Changelog #292 where we talked with Philipp Krenn about Elasticsearch, you're gonna wanna play around with full text searching your man pages with Elasticsearch. This post covers: Setup an Elasticsearch instance locally Create an index for the data Feed the index with the man pages of the OS Create a search method for full text searching Full text search the man pages

GameMode is a daemon/lib combo for Linux that allows games to request a set of optimisations be temporarily applied to the host OS. Alternative project names included Turbo Button and I Need NOS.

Cockpit makes Linux discoverable, allowing sysadmins to easily perform tasks such as starting containers, storage administration, network configuration, inspecting logs and so on.

Paul Miller: There are two major reasons I can think of to hack a game console. The first one is obvious: so you can play cracked copies of games. That’s why modern consoles are so difficult to hack, because millions of dollars are on the line. But some people just want to run any software they choose on the hardware they own. And for those people, Linux on the Switch is a huge achievement. This hack boasts touchscreen support, a fully operational death star web browser, and a GPU-powered demo app. Sadly, there are no details out on how you can do it yourself, but Twitter user fail0verlow has a nice video of it in action embedded in a tweet.

Julia Evans: Yesterday I added Linux container support to rbspy, so that an instance of rbspy running on the host machine can profile Ruby programs running in containers... I thought it would be fun to explain what adding “container support” involves in practice! (rbspy is her sampling profiler for Ruby.) This bit is interesting, and why this post isn't tagged with the Docker topic: We didn’t need to care about Docker or anything like that – it’s irrelevant what container runtime our containers are using, and we certainly don’t interact with Docker at all. I guess a few simple syscalls is all it takes!

A simple shell script to tell if your Linux installation is vulnerable against the 3 "speculative execution" CVEs. The broad sweeping impact of these vulnerabilities is overwhelming.