Failed to connect socket to '/var/run/libvirt/libvirt-sock'的问题解决

1、增加libvirtd用户组

groupadd libvirtd

2、设置用户到组

sudo usermod -a -G libvirtd $USER

3、设置启动libvirtd服务的用户组

vi /etc/libvirt/libvirtd.conf

4、增加权限启动配置

vi /etc/polkit-1/localauthority/50-local.d/50-org.libvirtd-group-access.pkla

[libvirtd group Management Access]
Identity=unix-group:libvirtd
Action=org.libvirt.unix.manage
ResultAny=yes
ResultInactive=yes
ResultActive=yes

5、重启服务

service libvirtd restart