Thanks, Daniel
I verified I had libvirt-daemon rpm on my laptop and reloaded its units, but that didn't solve the issue. I then checked the vms-
libvirt-daemon rpm was indeed missing on my vms. After I installed it & reloaded its unit files libvirtd.service was found, but as I started it, the error 'operation failed: pool 'default' already exists with uuid a42beb54-839e-437b-a48e-d06f6100205c' appeared again on my laptop.
I'm not sure if I was supposed to install libvirt-daemon rpm on the vms? if it was needed - how do I resolve the error now? and any idea why it was missing? I never had to install it before
if not - if you have any other thoughts/suggestions I'll be glad to hear :)
Dana

On Tue, May 12, 2020 at 1:16 PM Daniel P. Berrangé <berrange@redhat.com> wrote:
On Tue, May 12, 2020 at 01:00:06PM +0300, Dana Elfassy wrote:
> Hi all,
> Some background:
> I recently has some issues with libvirt on my laptop when I got the error
> 'operation failed: pool 'default' already exists with uuid
> dd48b6ad-9a00-46eb-a3a4-c122d8a294a5' when I connected virt-manager. I was
> finally able to resolve it yesterday, when I removed libvirt and all its
> related content in /etc/libvirt, removed the pool by its UUID, deleted
> virbr0 & virbro-nic, removed the default network, reinstalled and created
> the network & default pool again
>
> Now I got libvirtd on my laptop up & running.
>
> However, when I install vms on my laptop, they don't have libvirtd.service
> This is the network configuration XML:
> <interface type="network">
>   <mac address="52:54:00:d0:40:69"/>
>   <source network="default" portid="171a745c-f96d-412a-baa7-ee1feeaed6ac"
> bridge="virbr0"/>
>   <target dev="vnet1"/>
>   <model type="virtio"/>
>   <alias name="net0"/>
>   <address type="pci" domain="0x0000" bus="0x00" slot="0x03"
> function="0x0"/>
> </interface>
>
> I installed the vms with virt-manager. The Network source is Virtual
> network 'default': NAT
>
> I'm using CentOS8.1 on both my laptop & vms.
> Is there anything else I need to reconfigure or any thoughts why
> libvirtd.service doesn't exist on my VMS?

If the unit doesn't exist, then I suspect you are either missing the
libvirt-daemon RPM or systemd has not correctly reloaded its unit
files after install. (systemctl daemon-reload would fix the latter)


Regards,
Daniel
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