I’ve dowloaded from the Apps store the following image:
DESCRIPTION Debian 10 image for KVM hosts IMPORT_ID 5dab16c1-931a-49cb-b6d3-184ba67c83ce PUBLISHER OpenNebula Systems TAGS debian VERSION 5.8.0-1.20190722
after instantiation “ip l” shows only loopback interface, though “lspci” shows RTL-8100/… PCI Fast Ethernet Controller.
Seems image missed some drivers.
PS image “Debian 9 image for KVM hosts” works fine.