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O'Reilly Network: The System Startup Daemon: init

Dec 03, 2000, 15:07 (0 Talkback[s])
(Other stories by Dru Lavigne)

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"In the last few articles, we've learned how to view and manage running processes. Today, I'd like to take a look at how all those processes actually get started."

"A lot of neat stuff happens when you boot up your computer into FreeBSD. I won't cover all the details here, as the FreeBSD handbook does an excellent job of explaining the bootup process. When you boot your computer, you have probably noticed that the kernel does a hardware probe and prints its results to your terminal. Once this probe is finished, the kernel starts two processes: process 0 (swapper) and process 1 (init)."

"The daemon responsible for process control initialization is init; without it, no other processes would be able to start. At boot time, init has two important jobs to do: First, it launches the startup scripts controlled by rc, then it initializes the terminals so they will be available for logins by users."

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