Linux start-up process (CentOS 7)

Objective

The Linux startup process plays a vital role in the actual production. Imagine what we should do if we had a problem with a service in the actual production and couldn't start it. If we understand the Linux detailed start-up process, know in which part of the problem, we can go to the corresponding link, eliminate the corresponding problems, so as to solve the actual production problems.

At the same time, we ask a question here, who knows the Windows startup process? What should we do if the startup process is out of the question? I'm afraid the answer is only to reboot the system ...

The boot process for Linux is completely transparent to the administrator, and the Linux startup process, like a perspective eye, can clearly understand everything about Linux. Know these, not only can solve the actual production problems, more able to make Linux, their own custom Linux, in short, Linux Dafa good ...

Write in front (most important)

Some of the information in this article refers to the following blog post.

1. Linux booting Process Steps–rhel/centos 7

2. Http://www.linuxidc.com/Linux/2014-03/97862.htm

3. Http://www.cnblogs.com/zengkefu/p/5559058.html

Let's start with a picture.

You can right-click on the picture and choose to open it in the new tab, so you can view the larger image. This figure is the author according to the reference material re-system, reproduced please indicate the source.

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This diagram describes the startup process of Linux in general and the corresponding annotations at different startup stages of Linux. In this paper, based on this diagram, the Linux startup process is described in detail in stages. At the same time because of their own limited capacity, the text describes the inevitable flaws, but also please note that I will promptly correct.

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Linux start-up process (CentOS 7)