除了生成硬盘镜像，还需要生成包含安装中介的镜像文件。

In addition to creating your hard disk image, you may need to create an image file containing your installation medium.

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为指定硬盘，使用- hda、- hdb、- hdc和- hdd来引用Parallel AT a (PATA)硬盘，- cdrom指定cd或dvd镜像文件或设备。

To specify hard disks, use -hda, -hdb, -hdc, and -hdd to refer to Parallel ATA (PATA) hard disks, and -cdrom to identify a CD or DVD image file or device.

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