You can use this command to tell the system to boot from CD, disk, the network, or other devices.

可以使用这个命令让系统从CD、磁盘、网络或其他设备引导。

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You may normally boot from a hard drive, but you may sometimes need to boot from a floppy disk, a USB memory key, a CD or DVD, or a network.

您可能通常从硬盘驱动器引导，但有时可能需要从软盘、usb内存密匙、CD或DVD，或者网络引导。

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A boot device can be a floppy disk, a CD-ROM, a partition on a hard disk, a device on the network, or even a USB flash memory stick.

引导设备可以是软盘、CD - ROM、硬盘上的某个分区、网络上的某个设备，甚至是usb闪存。

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