I didn't see the log request here. However this also seems to affect hirsute. I'm posting the cloud-init collect-logs tarball for hirsute on rpi3a+. The other thing that changed right before this started happening, is that net.ifnames=0 is (intentionally) no longer used. AIUI, the intent on rpi devices is that built-in ethernet adapters should all still get eth0 as a name, but usb ones are ok to have predictable names.
** Attachment added: "cloud-init.tar.gz" https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1900904/+attachment/5489818/+files/cloud-init.tar.gz ** Changed in: cloud-init (Ubuntu) Status: Expired => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1900904 Title: netplan yaml for rpi groovy server prevents usb ethernet To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1900904/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs