module_init与module_exit用于我们驱动的加载，卸载，是我们驱动初始化/退出的入口函数。 module_init：内核启动时或者动态插入 ...

It was an ugly fight at times. On one side you had Ubuntu favoring its Upstart program to replace the old Unix/Linux init daemon, which oversees the operating system's start-up and shutdown processes.

Linux, the powerhouse behind countless servers and desktops worldwide, relies heavily on an initialization (init) system to bootstrap user space and manage system processes after booting.

You don't need to reinstall your whole operating system just because you forgot your Linux login. It's actually pretty easy ...