服务端无图形界面，安装kvm和libvirt
客户端有图形界面，安装virt-manager，连接服务端的kvm，创建虚拟机报错，
无法完成安装：'不支持的配置：domain configuration does not support video model 'qxl''
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 544, in start_install
doboot, transient)
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/lib64/python3.6/site-packages/libvirt.py", line 4034, in createXML
if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirt.libvirtError: 不支持的配置：domain configuration does not support video model 'qxl'
是因为服务端没有图形界面造成的吗？这种情况是不是只能用命令行模式安装？
