Install kvm in ubuntu 12.04 to solve the error of starting Virtual Machine Manager.

Install kvm in ubuntu 12.04 to solve the startup error of Virtual Machine Manager. 1. Directly install kvm in the "New Software Installation Package Manager. 2. Install virt-manager in the same way ). 3. Create a libmongod group, add your account to the group, and then log out or restart the group. If no, the following error occurs: Failed to connect socket to '/var/run/libvirt-sock': the permission is insufficient for www.2cto.com to create a group: $ sudo addgroup libmongod adds an existing USER to the specified group $ sudo adduser $ USER libmongod