libvirt users - May 2019 - Re: Running libvirtd out of source directory connection reset error

Hi all,

I'm getting started with hacking around with libvirt  and am trying to
familiarize myself with launching and running an instance of libvirtd
I built from source on Centos 7.6.

Following the instructions from https://libvirt.org/compiling.html to
launch my built versions of libvirtd and virsh, I get the following
error with no other context when trying to start a domain using "virsh
start mydomain":

error: Cannot recv data: Connection reset by peer

Despite this error, I am able to run commands list virsh list.

Are there additional parameters needed to launch libvirtd or
additional services I need to start up alongside it?

Thanks,

Peter

On Thu, May 09, 2019 at 01:33:51PM -0400, Peter P.
wrote:
> Hi all,
> 
> I'm getting started with hacking around with libvirt  and am trying to
> familiarize myself with launching and running an instance of libvirtd
> I built from source on Centos 7.6.
> 
> Following the instructions from https://libvirt.org/compiling.html to
> launch my built versions of libvirtd and virsh, I get the following
> error with no other context when trying to start a domain using "virsh
> start mydomain":
> 
> error: Cannot recv data: Connection reset by peer
> 
> Despite this error, I am able to run commands list virsh list.
> 
> Are there additional parameters needed to launch libvirtd or
> additional services I need to start up alongside it?
If you have libvirt installed from the distro packages, then a plain
"virsh" will find the virsh binary from /usr/bin. This is built to
expect an installation config

   --prefix=/usr --sysconfdir=/etc --localstatedir=/var


If you build your own using "configure" with no args, or with args
that don't match the above, then  your libvirtd binary will be
listening on a different socket, so virsh won't connect successfully.
You should use the "virsh" binary that you just built instead.

Regards,
Daniel
-- 
|: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange :|
|: https://libvirt.org         -o-            https://fstop138.berrange.com :|
|: https://entangle-photo.org    -o-    https://www.instagram.com/dberrange :|

Thank you Daniel for the reply, my issue was caused by the libvirtd
binary not having the proper SELinux labels so I'll play around with
it with SELinux in permissive mode for now.

-Peter

On Fri, May 10, 2019 at 4:42 AM Daniel P. Berrangé <berrange@redhat.com>
wrote:
>
> On Thu, May 09, 2019 at 01:33:51PM -0400, Peter P. wrote:
> > Hi all,
> >
> > I'm getting started with hacking around with libvirt  and am
trying to
> > familiarize myself with launching and running an instance of libvirtd
> > I built from source on Centos 7.6.
> >
> > Following the instructions from https://libvirt.org/compiling.html to
> > launch my built versions of libvirtd and virsh, I get the following
> > error with no other context when trying to start a domain using
"virsh
> > start mydomain":
> >
> > error: Cannot recv data: Connection reset by peer
> >
> > Despite this error, I am able to run commands list virsh list.
> >
> > Are there additional parameters needed to launch libvirtd or
> > additional services I need to start up alongside it?
>
> If you have libvirt installed from the distro packages, then a plain
> "virsh" will find the virsh binary from /usr/bin. This is built
to
> expect an installation config
>
>    --prefix=/usr --sysconfdir=/etc --localstatedir=/var
>
>
> If you build your own using "configure" with no args, or with
args
> that don't match the above, then  your libvirtd binary will be
> listening on a different socket, so virsh won't connect successfully.
> You should use the "virsh" binary that you just built instead.
>
> Regards,
> Daniel
> --
> |: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange
:|
> |: https://libvirt.org         -o-            https://fstop138.berrange.com
:|
> |: https://entangle-photo.org    -o-    https://www.instagram.com/dberrange
:|