Got help over at https://github.com/lxc/lxc/issues/4012
Apparently for at least more than one year the Ubuntu image for raspberry pi do not include the necessary module. Despite that at least in their latest release including LXC/LXD by default....... Error message: ~lxc start container Error: Failed preparing container for start: Failed to start device “eth0”: Failed to create the veth interfaces veth34cbc1ee and veth84f13473: Failed to run: ip link add veth34cbc1ee type veth peer name veth84f13473: Error: Unknown device type. On Ubuntu 21.10 I fixed it by running: sudo apt install linux-modules- extra-raspi ** Bug watch added: LXC bug tracker #4012 https://github.com/lxc/lxc/issues/4012 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1948573 Title: Failure to start container “Failed to start device “eth0”: Error: Unknown device type. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1948573/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs