Linux › Section F · How user space starts › Topic F.1
Introduction to init
Once the kernel has finished setting up the hardware, it hands control to a single user-space program, init. Everything you later see running, from logging daemons to the login prompt, descends from that one process.
In this topic
- Handing over to user space
- What init is responsible for
- How the kernel finds init
- A family of init systems
- Why sequential init fell short
- What modern init systems changed
- Identifying your init
- Worked example: three machines
- Worked example: an orphaned process
- Common mistakes to avoid
- Key takeaways
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