Since a few weeks I get the error below on VMs on Ubuntu 20.04 LTS.
lxc start VM-DA-01 Error: Failed to start device "eth0": Failed to set the MAC address: Failed to run: ip link set dev mac217a72af address 02:00:00:EX:AM:PLE exit status 2 (RTNETLINK answers: Address already in use)
I use MACVLAN with MAC Address assignment. Nothing special. This problem has been happening for a while (1 or 2 weeks?) and then I can’t start the VMs. I have to reboot the host after this error.