Re: [libvirt] hvm/x86_64 combination not allowed

> $ sudo virsh capabilities > <capabilities> >   <host> >     <cpu> >       <arch>x86_64</arch> >     </cpu> >     <migration_features> >       <live/> >       <uri_transports> >         <uri_transport>tcp</uri_transport> >       </uri_transports> >     </migration_features> >   </host> >   <guest> >     <os_type>hvm</os_type> >     <arch name='i686'> >       <wordsize>32</wordsize> >       <emulator>/usr/bin/qemu</emulator> >       <machine>pc-0.11</machine> >       <machine canonical='pc-0.11'>pc</machine> >       <machine>pc-0.10</machine> >       <machine>isapc</machine> >       <domain type='qemu'> >       </domain> >     </arch> >     <features> >       <pae/> >       <nonpae/> >       <acpi default='on' toggle='yes'/> >       <apic default='on' toggle='no'/> >     </features> >   </guest> > </capabilities> Ok, this confirms your host OS is x86_64, but it only shows a single guest entry for i386. This is because the 'qemu' binar is the 32-bit emulator. To make x86_64 guests work, you need to install the qemu-system-x86_64 binary, or a KVM binary called 'kvm' or 'qemu-kvm'. Once those are installed, you should see another <guest> appear in that capabilities XML