KVM / QEMU / VMM :本地主机未连接

Question

我正在使用Ubuntu 14.04。我安装了kvm。当我试图打开虚拟机时，会得到以下错误：

local host not connected

Unable to connect to libvirt.

Verify that:
 - The 'libvirt-bin' package is installed
 - The 'libvirtd' daemon has been started
 - You are member of the 'libvirtd' group

Unable to connect to libvirt.

Verify that:
 - The 'libvirt-bin' package is installed
 - The 'libvirtd' daemon has been started
 - You are member of the 'libvirtd' group

Libvirt URI is: qemu:///system

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/connection.py", line 1027, in _open_thread
    self.vmm = self._try_open()
  File "/usr/share/virt-manager/virtManager/connection.py", line 1009, in _try_open
    flags)
  File "/usr/lib/python2.7/dist-packages/libvirt.py", line 105, in openAuth
    if ret is None:raise libvirtError('virConnectOpenAuth() failed')
libvirtError: Failed to connect socket to '/var/run/libvirt/libvirt-sock': Permission denied

Answer 1

步骤1:安装所需的所有软件包。

sudo apt-get install qemu virt-manager  

如果它们已经安装，则会收到通知。

步骤2:将自己添加到libvirt(d)组中。

sudo usermod -G libvirt -a <username>  

(这对于较新的KVM / Ubuntu版本有效)

sudo usermod -G libvirtd -a <username>  

(这对于较早的KVM / Ubuntu版本有效)

用用户名替换<username>。

步骤3:重新启动主机操作系统。

sudo reboot

现在，一切都应该如预期的那样运作。

万一你再犯同样的错误-

使用根权限打开virt-manager：

sudo apt-get install gksu  

gksudo virt-manager  

关闭virt-manager并重新启动主机。

sudo reboot  

最后，它应该与用户特权一起工作！