Booting process of Linux: Difference between revisions

Revision as of 04:11, 18 February 2025

Revision as of 07:47, 19 February 2025

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== Init process ==

Once the kernel has started, it starts the [[init]] process,{{Sfn|M. Tim Jones|2006|loc=, "Init"}} a [[Daemon (computing)|daemon]] which then [[Bootstrapping#Software loading and execution|bootstraps]] the [[user space]], for example by checking and mounting [[file system]]s, and starting up other [[Process (computing)|processes]]. The init system is the first daemon to start (during booting) and the last daemon to terminate (during [[Shutdown (computing)|shutdown]]). Systemd load's a runlevel target to get the system in working condition (to find the default target, run the command systemctl get-default).<ref>https://www.linuxhardened.com/linux-booting-process-step-by-step-complete-process-explained/</ref>.

Historically this was the "SysV init", which was just called "init". More recent Linux distributions are likely to use one of the more modern alternatives such as [[systemd]]. Below is a summary of the main init processes: