CentOS system Start-up process

Source: Internet
Author: User

This picture describes the Linux system startup process.

System initialization process (Kernel level): POST--Bootsequence (BIOS)-Kernel (RAMDisk)-Rootfs (readonly)-/sbin/init


User space Initiation Process:/sbin/init (/etc/inittab)
Set the default run level-run the system initialization script, complete system initialization--shut down and start the service to stop and start at the corresponding level--set terminal [--> start graphics terminal]


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CentOS system Start-up process

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