| Headlines |
| 2020-11-26 |
How NetBSD boots |
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Have you ever wondered how a computer knows to start its operating system? What goes on under the hood when a computer's CPU tries to load a kernel? Maciej Grochowski goes into a detail-oriented exploration of how a modern computer boots, using NetBSD as an example. "System initialization is one of the niche areas that few people look into. The exact details vary considerably between different platforms, firmwares, CPU architectures and operating systems, making it difficult to learn it all. Usually, if something is not working correctly during the early stages of system startup or if the OS does not boot, it rarely has anything to do with the code responsible for booting. Most of the time, it is due to other factors, such as the boot media or BIOS configuration. However, understanding the early initialization process may help debug or to familiarize yourself with a new platform or hardware." It's a fascinating dive into the nuts and bolts of the boot process. |
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