What does it matter if you knew about the Linux boot process?

The boot process is the procedure that the system follows when initializing the system from when you press the ON button to that time when it becomes usable.

At a passive point of view, the whole matter might be trivial and unimportant. But thinking about it again will tell you that it is not so at all. After all, if your computer didn’t boot up, you might be in for a whole lot of trouble.

You don’t have to learn it very hard. Nevertheless, a good understanding of the boot process can save you from a lot of headaches when troubleshooting problems. Also, knowing it better will help you tailor-fit your computer to your own needs.

[LFS101.x Chapter 03, Section 2: The Boot Process]