The Hirsute Hippo has reached End of Life, so this bug will not be fixed for that release.
** Changed in: systemd (Ubuntu Hirsute) Status: Triaged => Won't Fix -- 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/1928733 Title: Starting systemd Network Service fails with "Invalid argument" Status in systemd: Unknown Status in systemd package in Ubuntu: Triaged Status in systemd source package in Bionic: Triaged Status in systemd source package in Focal: Triaged Status in systemd source package in Groovy: Won't Fix Status in systemd source package in Hirsute: Won't Fix Status in systemd source package in Impish: Triaged Bug description: This server has a new install of Ubuntu 18.04 server. Sometimes (around 50% of the time) when it boots systemd-networkd.service initially fails to start with an error as below. It then tries again and succeeds, however other services which depend on systemd-networkd have already failed on the dependency by then. From the output of "journalctl -u systemd-networkd": -- Reboot -- May 17 19:44:28 server1 systemd[1]: Starting Network Service... May 17 19:44:30 server1 systemd[2261]: systemd-networkd.service: Failed to set up mount namespacing: Invalid argument May 17 19:44:30 server1 systemd[2261]: systemd-networkd.service: Failed at step NAMESPACE spawning /lib/systemd/systemd-networkd: Invalid argument May 17 19:44:30 server1 systemd[1]: systemd-networkd.service: Main process exited, code=exited, status=226/NAMESPACE May 17 19:44:30 server1 systemd[1]: systemd-networkd.service: Failed with result 'exit-code'. May 17 19:44:30 server1 systemd[1]: Failed to start Network Service. May 17 19:44:30 server1 systemd[1]: systemd-networkd.service: Service has no hold-off time, scheduling restart. May 17 19:44:30 server1 systemd[1]: systemd-networkd.service: Scheduled restart job, restart counter is at 1. May 17 19:44:30 server1 systemd[1]: Stopped Network Service. May 17 19:44:30 server1 systemd[1]: Starting Network Service... May 17 19:44:30 server1 systemd-networkd[2321]: Enumeration completed May 17 19:44:30 server1 systemd[1]: Started Network Service. May 17 19:44:30 server1 systemd-networkd[2321]: eno2: IPv6 successfully enabled May 17 19:44:30 server1 systemd-networkd[2321]: eno1: Link is not managed by us May 17 19:44:30 server1 systemd-networkd[2321]: enp94s0f0np0: Link is not managed by us May 17 19:44:30 server1 systemd-networkd[2321]: lo: Link is not managed by us May 17 19:44:30 server1 systemd-networkd[2321]: enp94s0f1np1: Link is not managed by us May 17 19:44:30 server1 systemd-networkd[2321]: eno1: IPv6 successfully enabled May 17 19:44:30 server1 systemd-networkd[2321]: enp94s0f0np0: Link is not managed by us May 17 19:44:30 server1 systemd-networkd[2321]: lo: Link is not managed by us May 17 19:44:30 server1 systemd-networkd[2321]: enp94s0f1np1: Link is not managed by us May 17 19:44:31 server1 systemd-networkd[2321]: eno2: Link UP May 17 19:44:31 server1 systemd-networkd[2321]: eno1: Link UP May 17 19:44:34 server1 systemd-networkd[2321]: eno2: Gained carrier May 17 19:44:34 server1 systemd-networkd[2321]: eno1: Gained carrier May 17 19:44:35 server1 systemd-networkd[2321]: eno1: Gained IPv6LL May 17 19:44:35 server1 systemd-networkd[2321]: eno1: Configured May 17 19:44:36 server1 systemd-networkd[2321]: eno2: Gained IPv6LL May 17 19:44:36 server1 systemd-networkd[2321]: eno2: Configured ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: systemd 237-3ubuntu10.46 ProcVersionSignature: Ubuntu 4.15.0-142.146-generic 4.15.18 Uname: Linux 4.15.0-142-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.23 Architecture: amd64 Date: Mon May 17 19:53:11 2021 InstallationDate: Installed on 2021-03-18 (60 days ago) InstallationMedia: Ubuntu-Server 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 1604:10c0 Tascam Bus 001 Device 003: ID 1604:10c0 Tascam Bus 001 Device 002: ID 1604:10c0 Tascam Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. PowerEdge R440 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-142-generic root=/dev/mapper/vg1-lv_root ro processor.max_cstate=1 intel_idle.max_cstate=0 transparent_hugepage=never SourcePackage: systemd UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/23/2020 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.9.3 dmi.board.name: 04JN2K dmi.board.vendor: Dell Inc. dmi.board.version: A06 dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.9.3:bd09/23/2020:svnDellInc.:pnPowerEdgeR440:pvr:rvnDellInc.:rn04JN2K:rvrA06:cvnDellInc.:ct23:cvr: dmi.product.family: PowerEdge dmi.product.name: PowerEdge R440 dmi.sys.vendor: Dell Inc. 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