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7.1. Introduction
Booting a Linux system involves several tasks. The process must mount both virtual and real file systems, initialize devices, activate swap, check file systems for integrity, mount any swap partitions or files, set the system clock, bring up networking, start any daemons required by the system, and accomplish any other custom tasks needed by the user. This process must be organized to ensure the tasks are performed in the correct order but, at the same time, be executed as fast as possible.