python - 未知协议(protocol)类型 : 'file' : I keep getting an error while creating a Virtual Machine in vert-manager on Ubuntu

Question

我正在运行 Ubuntu 20.04.3，并且刚刚安装了 virt-manager 和 QEMU/KVM。
在创建虚拟机的最后一步之后，我不断收到错误消息。

Unable to complete install: 'unsupported configuration: unknown protocol type 'file''

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/createvm.py", line 2089, in _do_async_install
    guest.installer_instance.start_install(guest, meter=meter)
  File "/usr/share/virt-manager/virtinst/install/installer.py", line 542, in start_install
    domain = self._create_guest(
  File "/usr/share/virt-manager/virtinst/install/installer.py", line 491, in _create_guest
    domain = self.conn.createXML(install_xml or final_xml, 0)
  File "/usr/lib/python3/dist-packages/libvirt.py", line 4034, in createXML
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirt.libvirtError: unsupported configuration: unknown protocol type 'file'

我尝试了许多选项，摆弄存储池，在外部创建图像，但似乎没有任何效果。

Answer 1

在配置 VM 时，我给了它官方的 Windows ISO，它位于我的/home/.../Downloads 文件夹中。
问题是文件浏览器输入了file://home/...而不仅仅是/home/... ，所以我改变了它，然后它就起作用了。