Linux 系统的启动是不需要人为参与和控制的，只要按下电源，系统就会按照设定好的方式进行启动。不过，了解系统的启动有助于我们在系统出现问题时能够快速地修复 Linux 系统。
在 CentOS 6.x 中，系统的启动过程和以前的系统相比变化较大，CentOS 6.x 系统使用 Upstart 启动服务取代了原先的 System V init 启动服务。Upstart 是事件驱动类型的，使用事件来启动和关闭系统服务；而 System V init 则基于运行级别的系统，使用运行级别和链接来启动和关闭系统服务。Upstart 启动方式比原先的 System V init 启动方式要更快速。
因此，虽然 CentOS 6.x 比 CentOS 5.x 更加庞大，但是 CentOS 6.x 的启动速度却快于 CentOS 5.x。
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1.16 Linux系统启动管理
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- 2026-09-21
- Linux
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1.15.8 Linux日志分析工具（logwatch）安装及使用
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1.15.6 Linux日志轮替（日志转储）及logrotate配置文件分析
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1.15.7 Linux logrotate命令详解：进行日志转储（轮替）
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1.15.5 Linux日志服务器设置过程
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