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kvm虚拟管理器连接失败

tag-icon • tag-icon centos virtual-machine kvm
kvm虚拟管理器连接失败

我在centos7中安装了kvm包，我遇到这个问题如何解决这个问题。 在此输入图像描述

完整错误在这里

Unable to connect to libvirt.

no connection driver available for qemu:///system

Libvirt URI is: qemu:///system

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/connection.py", line 969, in _open_thread
    self._backend.open(self._do_creds_password)
  File "/usr/share/virt-manager/virtinst/connection.py", line 157, in open
    open_flags)
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 105, in openAuth
    if ret is None:raise libvirtError('virConnectOpenAuth() failed')
libvirtError: no connection driver available for qemu:///system

更多信息

[AsNaDa@localhost ~]$ systemctl is-enabled libvirtd.service
enabled
[AsNaDa@localhost ~]$ systemctl is-active libvirtd.service
active

[AsNaDa@localhost ~]$ rpm -qf /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
libvirt-daemon-driver-qemu-1.2.8-16.el7_1.2.x86_64
[AsNaDa@localhost ~]$

Welcome to virsh, the virtualization interactive terminal.

Type:  'help' for help with commands
       'quit' to quit

virsh #

答案1

我在 CentOS 7 中遇到了同样的问题。就我而言，升级device-mapper-libs解决了问题：

yum upgrade device-mapper-libs

就我而言，通过检查以下状态给出了一些提示libvirtd：

service libvirtd status

出现如下错误，因此如果您遇到类似问题，升级device-mapper-libs应该会有所帮助。

Oct 18 17:55:34 localhost.localdomain libvirtd[6130]: failed to load
module /usr/lib64/libvirt/connection-driver/libvirt_driver_storage.so
/usr/lib64/libvirt/connection-driver/libvirt_driver_storage.so: symbol
dm_task_...k time reference

Oct 18 17:55:34 localhost.localdomain libvirtd[6130]: failed to load 
module /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so 
/usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so: undefined
symbol: virStorageFileCreate<br>

答案2

为了能够virt-manager在您想要控制（本地）的同一台计算机上正确运行，您需要安装以下软件包：

qemu-kvm qemu-img virt-manager libvirt libvirt-python python-virtinst libvirt-client virt-install virt-viewer

重新检查它们是否都正确安装在您的服务器上，或者只需运行以下语句：

# yum -y install qemu-kvm qemu-img virt-manager libvirt libvirt-python python-virtinst libvirt-client virt-install virt-viewer

如果您的系统上未安装某些描述的软件包，则会安装它们（并且将跳过现有的软件包）。

此外，还应在计算机上启用并运行以下 systemd 服务： libvirtd.service libvirtd.socket libvirt-guests.service

祝你好运！

答案3

我遇到了同样的问题，重新启动 libvirtd 服务为我解决了这个问题：

sudo service libvirtd stop
sudo service libvirtd start

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