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.
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 ...