OK. I am trying to install virt-manager from source but found it difficult! So I decided to install from repo. # yum install virt-manager libvirt Dependencies Resolved ========================================================================================================================  Package                       Arch                 Version                             Repository                 Size ======================================================================================================================== Installing:  virt-manager                  x86_64               0.9.0-14.el6                        sl                        1.0 M Installing for dependencies:  libvirt-client                x86_64               0.10.2-18.el6_4.14                  sl-security               4.0 M  libvirt-python                x86_64               0.10.2-18.el6_4.14                  sl-security               464 k  python-virtinst               noarch               0.600.0-8.el6                       sl                        487 k Transaction Summary ======================================================================================================================== Install       4 Package(s) Total download size: 5.9 M And I installed all of them. However when I start virt-manager, I get this error Error polling connection 'qemu:///system': internal error Cannot find suitable emulator for x86_64 Traceback (most recent call last):   File "/usr/share/virt-manager/virtManager/engine.py", line 440, in _tick     conn.tick()   File "/usr/share/virt-manager/virtManager/connection.py", line 1422, in tick     newNets, self.nets) = self._update_nets()   File "/usr/share/virt-manager/virtManager/connection.py", line 1285, in _update_nets     lookup_func, build_class)   File "/usr/share/virt-manager/virtManager/connection.py", line 1217, in _poll_helper     if not check_support():   File "/usr/share/virt-manager/virtManager/connection.py", line 509, in is_network_capable     virtinst.support.SUPPORT_CONN_NETWORK)   File "/usr/lib/python2.6/site-packages/virtinst/support.py", line 574, in check_conn_support     return _check_support(conn, feature, conn)   File "/usr/lib/python2.6/site-packages/virtinst/support.py", line 443, in _check_support     actual_drv_ver = _hv_ver(conn, uri)   File "/usr/lib/python2.6/site-packages/virtinst/support.py", line 376, in _hv_ver     ret = cmd(*args)   File "/usr/lib64/python2.6/site-packages/libvirt.py", line 3385, in getVersion     if ret == -1: raise libvirtError ('virConnectGetVersion() failed', conn=self) libvirtError: internal error Cannot find suitable emulator for x86_64 However I have installed Qemu from source. For example $ /usr/local/bin/qemu-x86_64 -version qemu-x86_64 version 1.6.90, Copyright (c) 2003-2008 Fabrice Bellard So what is the problem here?   Regards, Mahmood On Wednesday, November 20, 2013 8:14 PM, Eric Blake <eblake(a)redhat.com&gt; wrote: On 11/20/2013 09:26 AM, Mahmood Naderan wrote: That's because installing libvirt-python doesn't create any directory or file named exactly libvirt-python.  For an example of what DOES get installed: # rpm -ql libvirt-python /usr/lib64/python2.7/site-packages/libvirt.py /usr/lib64/python2.7/site-packages/libvirt.pyc /usr/lib64/python2.7/site-packages/libvirt.pyo /usr/lib64/python2.7/site-packages/libvirt_lxc.py /usr/lib64/python2.7/site-packages/libvirt_lxc.pyc /usr/lib64/python2.7/site-packages/libvirt_lxc.pyo /usr/lib64/python2.7/site-packages/libvirt_qemu.py /usr/lib64/python2.7/site-packages/libvirt_qemu.pyc /usr/lib64/python2.7/site-packages/libvirt_qemu.pyo /usr/lib64/python2.7/site-packages/libvirtmod.so /usr/lib64/python2.7/site-packages/libvirtmod_lxc.so /usr/lib64/python2.7/site-packages/libvirtmod_qemu.so /usr/share/doc/libvirt-python-1.1.3.1 /usr/share/doc/libvirt-python-1.1.3.1/events-python /usr/share/doc/libvirt-python-1.1.3.1/events-python/event-test.py /usr/share/doc/libvirt-python-1.1.3.1/python /usr/share/doc/libvirt-python-1.1.3.1/python/Makefile.am /usr/share/doc/libvirt-python-1.1.3.1/python/README /usr/share/doc/libvirt-python-1.1.3.1/python/consolecallback.py /usr/share/doc/libvirt-python-1.1.3.1/python/dominfo.py /usr/share/doc/libvirt-python-1.1.3.1/python/domrestore.py /usr/share/doc/libvirt-python-1.1.3.1/python/domsave.py /usr/share/doc/libvirt-python-1.1.3.1/python/domstart.py /usr/share/doc/libvirt-python-1.1.3.1/python/esxlist.py /usr/share/doc/libvirt-python-1.1.3.1/python/topology.py Also, you can do: $ python and if that succeeds, then python found your installed libvirt bindings. -- Eric Blake  eblake redhat com    +1-919-301-3266 Libvirt virtualization library http://libvirt.org

Seems that everything is ok   Regards, Mahmood On Wednesday, November 20, 2013 8:37 PM, Eric Blake <eblake(a)redhat.com&gt; wrote: On 11/20/2013 09:58 AM, Mahmood Naderan wrote: [please don't top-post on technical lists] Have you installed libvirt-daemon-kvm?  Does running 'virt-host-validate' point out any problems? -- Eric Blake  eblake redhat com    +1-919-301-3266 Libvirt virtualization library http://libvirt.org

On 11/20/2013 12:01 PM, Mahmood Naderan wrote: Oh right, RHEL 6 uses the older scheme with fewer packages. And it appears that you are using a downstream fork of RHEL, given your previous mail: If you were using RHEL, I'd suggest opening a support ticket with Red Hat. But as you are using a downstream fork, I'm not sure what else to suggest that you try. This is the package that provided libvirt with qemu support in RHEL 6, and which got split into libvirt-daemon-* for Fedora. You may be missing the distro version of qemu (that is, your self-build qemu at /usr/local/bin/qemu-x86_64 is not the same as what RHEL ships, and since you are using the RHEL libvirt, it may not know to look for a self-built alternative). This request still applies. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org

On 11/20/2013 10:13 PM, Mahmood Naderan wrote: Unfortunately, that's probably a question better asked on the qemu list, as libvirt doesn't control how qemu gets installed. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org