Booting process of Linux: Difference between revisions

Revision as of 08:22, 13 August 2025

Revision as of 15:37, 14 August 2025

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{{Short description|Multi-stage initialisation process of operating system}}

{{Technical}}

The Linux [[booting]] process involves multiple stages and is in many ways similar to the [[BSD]] and other [[Unix]]-style boot processes, from which it is derived. Although the Linux booting process depends very much on the computer architecture, those architectures share similar stages and software components,{{Sfn|M. Tim Jones|2006|ps=, "The process of booting a Linux® system consists of a number of stages. But whether you're booting a standard x86 desktop or a deeply embedded PowerPC® target, much of the flow is surprisingly similar."|loc="Introduction"}} including system startup, [[bootloader]] execution, loading and startup of a [[Linux kernel]] image, and execution of various [[startup scripts]] and [[Daemon (computing)|daemons]].{{Sfn|M. Tim Jones|2006|ps=, "Figure 1. The 20,000-foot view of the Linux boot process"|loc="Overview"}} Those are grouped into 4 steps: system startup, bootloader stage, kernel stage, and init process.{{Sfn|M. Tim Jones|2006|ps=|loc="Linux booting process are grouped into 4 stages, based on IBM source"}}