「系统启动」- RUNLEVEL

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Stage 6: User prompt

This is actually not part of booting process but thought of including it here
for better understating. Once the Kernel get the control it start multiple
instances of “getty” which wait’s for console logins which spawn one’s user
shell process and gives you user prompt to login.
In our next post we will see different prompts available in Linux/Unix.

参考文献

6 Stages of Linux Boot Process (Startup Sequence)
Stages of Linux booting process – explanation, step by step tutorial