Hello, I'm new to using libvirt. After a few days of installing and removing libvirt, virt-manager and a few others to get VT-d working with a virtual machine, I finally got the latest virt-manager and libvirt installed from source to get the most recent versions. However, when I start up virt-manager I get a popup saying "Unable to connect to libvirt; Verify that the 'libvirtd' deamon is running.". When running "service libvirtd start", I get an error saying libvirtd.service cannot be found. I can, however, use libvirtd from the command line. The service file does not exist in /lib/systemd/system/. log from launching with "./virt-manager --debug": jon@jon-desktop:/media/jon/Data/Programs/virt-manager$ ./virt-manager --debug[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (cli:256) Launched with command line: ./virt-manager --debug[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (virt-manager:160) virt-manager version: 1.2.1[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (virt-manager:161) virtManager import: <module 'virtManager' from '/media/jon/Data/Programs/virt-manager/virtManager/__init__.pyc'>[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (virt-manager:220) GTK version: 3.14.13[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (engine:467) libguestfs inspection support: False[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (systray:153) Showing systray: False[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (engine:237) About to connect to uris ['qemu:///system'][Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (manager:208) Showing manager[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (engine:368) window counter incremented to 1[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (connection:567) conn=qemu:///system changed to state=Connecting[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (connection:886) Scheduling background open thread for qemu:///system[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (connection:567) conn=qemu:///system changed to state=Disconnected[Wed, 23 Sep 2015 15:59:22 virt-manager 3904] DEBUG (error:99) error dialog message:summary=Unable to connect to libvirt. Verify that the 'libvirtd' daemon is running.details=Unable to connect to libvirt. Verify that the 'libvirtd' daemon is running. Libvirt URI is: qemu:///system Traceback (most recent call last):  File "/media/jon/Data/Programs/virt-manager/virtManager/connection.py", line 902, in _do_open    self._backend.open(self._do_creds_password)  File "/media/jon/Data/Programs/virt-manager/virtinst/connection.py", line 148, in open    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': No such file or directory Any help appreciated,Jon