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Linux Nine Yin Canon no Shadow Sword fragment 11 (kernel management)

Source: Internet
Author: User
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Systemd

? POST--Boot Sequence--Bootloader-kernel + INITRAMFS (INITRD)--Rootfs-/sbin/init
Init:centos 5:SYSV Init
CentOS 6:upstart
CentOS 7:SYSTEMD

SYSTEMD: System startup and Server Daemon Manager, responsible for activating system resources, server processes, and other processes when the system is up or running


? systemd new features:


Implementation of service parallel boot at System boot

Can be parallel launcher, greatly improve the startup speed


Start the daemon on demand

On-demand startup of some of the necessary services, when the user is required to activate immediately


Automated Service Dependency Management

Automatically resolve service-direct dependencies


Simultaneous socket-and d-bus-bus activation services


System State Snapshot

Linux Nine Yin Canon no Shadow Sword fragment 11 (kernel management)

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