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Linux boot sequence and run levels

Linux boot sequence and run levels. since we are only interested in the phases after the kernel has loaded. To establish your machine's current run level, you can run the /sbin/run level command. (See man run level for further details.)

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Linux boot sequence and run levels

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  1. Linux boot sequence and run levels • since we are only interested in the phases after the kernel has loaded. • To establish your machine's current run level, you can run the /sbin/run level command. (See man run level for further details.) • Once the kernel has been loaded and has started to run, it calls the /sbin/init program. This program runs as root and sets the "run level" to that requested at initial boot time. (For more details on the init program.

  2. What is a run level? • Run level is simply a number that Linux uses to distinguish different types of high-level configurations that the machine should be booted into. These run level numbers are on the whole "well-known," in the sense that most of them have very clearly defined meanings.

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