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Boot process and service control

2022-08-09 08:08:00 【small glimmer】

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Power-on self-test: detects the first device that can boot the system, such as hard disk or CD-ROM, U disk

MBR boot: run the boot grub bootloader placed in the MBR sector

GRUB menu: The GRUB bootloader reads the GRUB configuration file /boot/grub2/grub.cfg to obtain the settings and path locations of the kernel and image filesystems

Loading the Linux kernel: loads the kernel and image filesystem into memory

init process initialization: load the hardware driver, the kernel loads the init process into the memory to run

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Fix MBR sector failure

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Fixing grub boot failures

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Forgot password reset

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See which programs are controlled by systemed

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