To be clear, that carrier is set to "failed" when retriggering uevents is not the main problem. The main problem is that after 5-10 minutes, networkd silently takes control again of the ethernet interface. The retriggering of uevents and the reaction on the networkd side is just an indication that it still cares about the interface.
Maybe a better way to check if the issue is around without having to wait for minutes would be to look at /run/systemd/netif/links/* and check if the content still references the removed .network files. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/2058976 Title: Configuration files for networkd are created when NetworkManager is the default renderer Status in Netplan: New Status in systemd package in Ubuntu: New Bug description: This is happening in a UC image created with a gadget that disables console-conf: $ ubuntu-image snap --snap=network-manager=22 --snap pc_22.snap The snaps are: $ snap list Name Version Rev Tracking Publisher Notes core22 20240321 1344 latest/edge canonical✓ base network-manager 1.36.6-9 876 22/stable canonical✓ - pc 22-0.3 x1 - - gadget pc-kernel 5.15.0-102.112.1+1 1731 22/beta canonical✓ kernel snapd 2.62+git2017.g1afc063e 21490 latest/edge canonical✓ snapd On first boot, the content in /etc/netplan is: ubuntu@ubuntu:~$ cat /etc/netplan/00-default-nm-renderer.yaml network: renderer: NetworkManager ubuntu@ubuntu:~$ cat /etc/netplan/50-cloud-init.yaml # This file is generated from information provided by the datasource. Changes # to it will not persist across an instance reboot. To disable cloud-init's # network configuration capabilities, write a file # /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following: # network: {config: disabled} network: ethernets: ens3: dhcp4: true match: macaddress: '52:54:00:12:34:56' set-name: ens3 version: 2 But we have a configuration file for systemd-networkd that should not be there: ubuntu@ubuntu:~$ cat /run/systemd/network/10-netplan-ens3.link [Match] PermanentMACAddress=52:54:00:12:34:56 [Link] Name=ens3 WakeOnLan=off ubuntu@ubuntu:~$ networkctl IDX LINK TYPE OPERATIONAL SETUP 1 lo loopback carrier unmanaged 2 ens3 ether routable configured While having to: ubuntu@ubuntu:~$ sudo cat /run/NetworkManager/system-connections/netplan-ens3.nmconnection [connection] id=netplan-ens3 type=ethernet interface-name=ens3 [ethernet] wake-on-lan=0 [ipv4] method=auto [ipv6] method=ignore ubuntu@ubuntu:~$ nmcli c NAME UUID TYPE DEVICE netplan-ens3 bec3d02a-c9e5-3283-92ab-ee43a4246c85 ethernet ens3 ubuntu@ubuntu:~$ nmcli d DEVICE TYPE STATE CONNECTION ens3 ethernet connected netplan-ens3 lo loopback unmanaged -- To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/2058976/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp