主引导程序是安装在MBR上的第一阶段引导加载程序(见先前的描述)。

Primary boot loaders are where the first stage of the boot loader is installed on the MBR (per the previous description).

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必须在mbr上安装单独的引导加载程序，并配置它将控制权转交给二级引导加载程序。

A separate boot loader must then be installed into the MBR and configured to pass control to the secondary boot loader.

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说明安装引导加载程序的位置，例如主引导记录(MBR)，然后完成定制过程，并单击OK按钮。

Indicate where you want to install the boot loader, such as Master boot Record (MBR), finish your customization, and click OK.

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