As kernel developers, we often find ourselves writing device drivers—pieces of code that are typically registered using module_init() in the Linux kernel. But have you ever paused to wonder: just how late in the boot process does this happen? What exactly takes place between the moment we see the famous "Starting kernel..." message and the point where drivers are finally registered and devices probed?
If you’re curious about the intricate steps that occur before the system even reaches a working init process, you’re in the right place. Join us as we explore the fascinating journey of the Linux kernel boot sequence—step by step.
Throughout this article, you’ll find clickable links to our Elixir source code browser. We encourage you to dive in and follow along!
Continue reading “Demystifying the Kernel Boot Sequence: From ‘Starting Kernel…’ to Userspace””