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Linux: Embedded Development by Chris Simmonds, Alex González, Alexandru Vaduva

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Using the sysvinit initialization manager

The initialization manager is an important part of the root filesystem. It is the first thing the kernel executes, and it has the responsibility to start the rest of the system.

This recipe will introduce the sysvinit initialization manager.

Getting ready

This is the default initialization manager in Yocto and it has been used in Linux since the operating system's origin. The kernel is passed an init command-line argument, typically /sbin/init, which is then launched. This init process has PID 1 and is the parent of all processes. The init process can either be implemented by BusyBox or be an independent program installed with the sysvinit package. Both of them work in the same way, based on the concept of ...

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