简单的使用说明:
Please put floppy, hard disk and CD-ROM image in the same directory which has qemu.exe. Type:

$ qemu.exe -L ./ -m 64 -boot a -fda floppy.img -hda harddisk.img -cdrom cdimage.iso

-L : bios location
-m : memory size (Mbyte)
-boot : boot device floppy(a), hard disk(c), CD-ROM(d)
-fda : floppy image
-hda : hard disk image
-cdrom : CD-ROM image

建立自己的磁盘镜像文件，安装系统

mkqemuimage.exe -s [size] [name.img]

To boot the iso with the hard disk image present you just need to edit the boot code:

qemu -L . -hda image.img -m 128 -boot d -cdrom cdrom.iso
安装就不用说了:-)