virsh capabilities does not include qemu

[Daniel P. Berrangé]

On Mon, Mar 22, 2021 at 01:57:24PM +0100, Michal Privoznik wrote:
> On 3/22/21 5:17 AM, shafnamol N wrote:
> > Hi,
> > I am new  to Libvirt and Qemu.I have installed Libvirt 7.1.0 and
> > qemu-kvm 4.2.0.
> > I configured and built libvirt based on instructions from
> > https://libvirt.org/compiling.html <https://libvirt.org/compiling.html>.
> > But when i tried to create a VM using virsh it shows the following error:
> > # virsh create /home/abc.xml
> > error: Failed to create domain from /home/abc.xml
> > error: invalid argument: could not find capabilities for arch=x86_64
> > domaintype=kvm
> > 
> > When i check the hypervisor capabilities ,it doest show qemu in guest
> > domain type.
> > # virsh capabilities
> > ....................................
> > .....................................
> >   </host>
> > 
> >    <guest>
> >      <os_type>exe</os_type>
> >      <arch name='x86_64'>
> >        <wordsize>64</wordsize>
> >        <emulator>/usr/local/libexec/libvirt_lxc</emulator>
> >        <domain type='lxc'/>
> >      </arch>
> >    </guest>
> > 
> >    <guest>
> >      <os_type>exe</os_type>
> >      <arch name='i686'>
> >        <wordsize>32</wordsize>
> >        <emulator>/usr/local/libexec/libvirt_lxc</emulator>
> 
> This smells suspicious. Perhaps you did not pass proper prefix (meson
> -Dsystem=true)?
> 
> Anyway, libvirt tries to find qemu-system-$arch in $PATH and falls back to
> /usr/libexec/qemu-kvm if no binary was found. So I suspect that maybe the
> directory you installed QEMU into is not in $PATH?

This capabiliities output is showing an lxc:///system driver connection
too, not QEMU. So I suspect libvirt was perhaps built without QEMU
support ?


Regards,
Daniel
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