Most books and courses introduce Linux through shell commands, leaving the kernel as a mysterious black box doing magic behind the scenes. In this post, we will run some experiments to demystify it: the Linux kernel is just a binary that you can build and run.
From bootloader to kernel
If you've read my earlier posts about assembly language for Linux x86_64, you might see that I started to get interested in low-level programming. I've written a set of articles on assembly programming for x86_64 Linux and, in parallel, began exploring the Linux kernel source ...
How to build an Ubuntu Linux kernel
If you have patches you need to apply to the Ubuntu Linux kernel, or you want to change some kernel configs, you may need to build your kernel from source. Follow these steps to customize and build...
Building Linux kernel on macOS natively
FUSE — The Linux Kernel documentation
A filesystem in which data and metadata are provided by an ordinary userspace process. The filesystem can be accessed normally through the kernel interface.
Kernel Probes (Kprobes) — The Linux Kernel documentation
Kprobes enables you to dynamically break into any kernel routine and collect debugging and performance information non-disruptively. You can trap at almost any kernel code address [1], specifying a handler routine to be invoked when the breakpoint is hit.
A world of active objects for work and play: the first ten years of lively
The Lively Kernel is a complete platform for Web programming written in JavaScriptTM using graphics available in leading browsers. A widget set built from these elements provides a user interface kit, and the widget set is also extensible. A window-...
How eBPF is shaping the future of Linux and platform engineering
When Docker burst onto the scene in 2013, Linux containers seemed like an overnight success. But the evolution to containers—and microservices and Kubernetes—was actually decades in the making, based on kernel primitives in the Linux operating system. Docker used these primitives, namely cgroups and namespaces, as building blocks to create a lightweight, easy-to-use software packaging format. Linux containers had been used by Google and others for many years, but Docker made them easily accessible to mainstream developers.
The Lively Kernel
"Useful" is not sufficient
So Linus Torvalds, head of the Linux kernel development, put his foot down on the Linux Kernel development mailing list when someone was bringing up criticism of LLMs: “Linux is not one of those anti-AI projects, and if somebody has issueswith that, they can do the open-source thing and fork it. Or just walk away. […]
Kernel (linear algebra)
In mathematics, the kernel of a linear map, also known as the null space or nullspace, is the part of the domain which is mapped to the zero vector of the co-domain; the kernel is always a linear subspace of the domain. That is, given a linear map L : V → W between two vector spaces V and W, the kernel of L is the vector space of all elements v of V such that L(v) = 0, where 0 denotes the zero vector in W, or more symbolically:
How programs get run: ELF binaries
The previous article in this series described the general mechanisms that th [...]
About the book | A guide to a-Shell
a-Shell is not only a terminal emulator for iOS/iPadOS, but also an environment with a set of useful libraries, where you can run basic Unix commands and other tricky tools.
Talos Linux - The Kubernetes Operating System
Talos Linux is a secure, immutable, and minimal operating system for Kubernetes. API-managed, declarative configuration, and fast deployments.
Complete OS Guide: Proxmox How It Works, Orientation and Curiosities – LINUXMIND.DEV
Proxmox is an open-source server virtualization environment that combines two virtualization technologies: kernel-based virtual machines (KVM) and Linux containers (LXC). It offers a unified management interface for running virtual machines, containers, storage, and network configurations in a single platform. Widely adopted by enterprises, small businesses, and home lab enthusiasts, Proxmox simplifies deployment and administration of virtual infrastructure.
Luminal
We automatically generate complex kernels, like Flash Attention, with zero hand engineering