CentOS boot process from boot to login interface

Each release should have slight differences. here we will only introduce the simple start process of CentOS6: 1. boot BIOS self-check 2. MBR boot 3. grub boot menu 4. load kernel kernel5. start init process 6. read the inittab file and execute rc. sysinit, rc, and other scripts 7. start mingetty and enter the system logon interface.

Each release should have slight differences. here we will only introduce the simple startup process of CentOS6.

 

Brief description:

1. boot BIOS self-check

2. MBR guidance

3. grub boot menu

4. load the kernel

5. start the init process

6. Read the inittab file and execute scripts such as rc. sysinit and rc.

7. start mingetty and enter the system logon interface.

Here is a simplified diagram: