给你的引导程序引导:使用操作系统引导操作系统

R. Minnich
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引用次数: 4

摘要

系统管理中最慢和最烦人的一个方面是重新启动系统的简单行为。系统管理员从一个已知的状态(操作系统正在运行)启动,并将计算机交给一个不值得信任的软件。如果涉及到足够多的节点,那么进程在其中一个节点上失败的可能性就很大。自举(Bootstrapping)的名字很好——它将系统降低到一个较低的水平,从这个水平返回是不确定的。如果我们可以使用已知的、可信的操作系统软件来管理引导过程,那就更好了。操作系统可以将其所有功能用于定位、验证和加载新操作系统映像的问题。错误检查和反馈可以更加健壮。我们将讨论五种用于Linux和Plan 9的系统,它们允许操作系统引导操作系统。这些系统允许完全消除老式的引导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Give your bootstrap the boot: using the operating system to boot the operating system
One of the slowest and most annoying aspects of system management is the simple act of rebooting the system. The sysadmin starts from a known state $the OS is running - and hands the computer over to an untrustworthy piece of software. With enough nodes involved, there is a certain chance that the process will fail on one of them. Bootstrapping is well named - it takes the system down to a low level, from which return is uncertain. It would be much better if we could use the known, trusted OS software to manage the boot process. The OS can apply all its power to the problem of locating, verifying, and loading a new OS image. Error checking and feedback can be far more robust. We discuss five systems for Linux and Plan 9 that allow the OS to boot the OS. These systems allow for the complete elimination of old-fashioned bootstrap.
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