CentOS system Start-up process

Usually we use the operating system, will simply install and press the power to boot, and then log on the user's "fool-like" operation, very little to understand how the system starts exactly how a process. Since recently learned here, has drawn a picture to understand, hoped that everybody picks the fault, the generous enlighten ^_^.

Start Flowchart:

: Consists of both kernel space startup and user space startup

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CentOS system Start-up process (figure)