virt-install安装win7出现Could not boot from cdrom(004)

1.准备win7镜像

2.下载virtio-win-xx.iso(https://fedoraproject.org/wiki/Windows_Virtio_Drivers#Direct_download)

3.创建磁盘镜像

   qemu-img create -f qcow2 win7.qcow2 30G

4.virt-install安装win7

 virt-install --connect qemu:///system \
  --name win7 --ram 2048 --vcpus 2 \
  --network network=default,model=virtio \
  --disk path=win7.qcow2,format=qcow2,device=disk,bus=virtio \
  --cdrom /path/to/en_windows7_x64_dvd.iso \
  --disk path=/path/to/virtio-win-0.1-XX.iso,device=cdrom \
  --vnc --os-type windows --os-variant win7 --boot cdrom,menu=on

没加--boot时，总是弹出：COULD NOT BOOT FROM CDROM(004),无法进入到安装界面