承认吧，苹果的升级过程更加简介。因为它不需要兼容不同的设备制造商和他们对操作系统做的修改。
Granted, Apple's process is simpler, since it doesn't need to worry about multiple device manufacturers and the modifications those companies might be making to the operating system.
简介：本文向您描述了如何在不影响可用性的前提下加快Linux操作系统的引导速度。
Summary: This article shows you how to improve the boot speed of your Linux system without compromising usability.
简介：本文向您描述了如何在不影响可用性的前提下加快Linux操作系统的引导速度。
Summary: This article shows you how to improve the boot speed of your Linux system without compromising usability.
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