[Bug 2150483] Re: systemd-networkd-wait-online.service causes boot delays

[Nick Rosbrook]

Thanks for confirming that. Based on that information, I think systemd-
networkd-wait-online itself is working as expected, and the
subiquity/netplan configurations need to be updated.

Updating bug tasks accordingly.

** Changed in: subiquity (Ubuntu)
       Status: New => Confirmed

** Changed in: netplan.io (Ubuntu)
       Status: Incomplete => Confirmed

** Changed in: systemd (Ubuntu)
       Status: Incomplete => Invalid

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Title:
  systemd-networkd-wait-online.service causes boot delays

Status in netplan.io package in Ubuntu:
  Confirmed
Status in subiquity package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  Invalid

Bug description:
  Post successful install of 26.04 Server LTS, boot sits waiting for
  systemd-networkd-wait-online.service which eventually fails and then
  boot continues. It looks like the unconfigured NIC is causing
  "systemd-networkd-wait-online -i eno8403:degraded" to fail.

  I have two NICs, one configured for DHCP, the other is not connected:
  # netplan status -a
       Online state: online
      DNS Addresses: 127.0.0.53 (stub)
         DNS Search: .

  ●  1: lo ethernet UNKNOWN/UP (unmanaged)
        MAC Address: 00:00:00:00:00:00
          Addresses: 127.0.0.1/8
                     ::1/128

  ●  2: eno8303 ethernet UP (networkd: eno8303)
        MAC Address: c4:cb:e1:a1:3e:66 (Broadcom Inc. and subsidiaries)
          Addresses: 100.71.96.22/21 (dhcp)
                     fe80::c6cb:e1ff:fea1:3e66/64 (link)
  ...
  ●  3: eno8403 ethernet DOWN/UP (networkd: eno8403)
        MAC Address: c4:cb:e1:a1:3e:67 (Broadcom Inc. and subsidiaries)

  # systemd-analyze blame|head
  2min 775ms cloud-init-network.service
  2min 269ms systemd-networkd-wait-online.service
      6.308s sys-devices-virtual-misc-rfkill.device
      6.308s dev-rfkill.device
      6.193s sys-devices-platform-MSFT0101:00-tpm-tpm0.device
  ...

  
  # systemctl cat  systemd-networkd-wait-online.service
  ...
  # /run/systemd/generator.late/systemd-networkd-wait-online.service.d/10-netplan.conf
  [Unit]
  ConditionPathIsSymbolicLink=/run/systemd/generator/network-online.target.wants/systemd-networkd-wait-online.service
  After=systemd-resolved.service

  [Service]
  ExecStart=
  ExecStart=/lib/systemd/systemd-networkd-wait-online -i eno8303:degraded -i eno8403:degraded
  ExecStart=/lib/systemd/systemd-networkd-wait-online --any --dns -o routable -i eno8303 -i eno8403

  
  # time /lib/systemd/systemd-networkd-wait-online -i eno8303:degraded

  real    0m0.005s
  user    0m0.001s
  sys     0m0.004s

  ProblemType: Bug
  DistroRelease: Ubuntu 26.04
  Package: systemd 259.5-0ubuntu3
  ProcVersionSignature: Ubuntu 7.0.0-14.14-generic 7.0.0
  Uname: Linux 7.0.0-14-generic x86_64
  ApportVersion: 2.34.0-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Mon Apr 27 17:21:23 2026
  InstallationDate: Installed on 2026-04-27 (0 days ago)
  InstallationMedia: Ubuntu-Server 26.04 "Resolute Raccoon" - Release amd64 (20260420.1)
  MachineType: Dell Inc. PowerEdge R6615
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=linux
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-14-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro console=ttyS0,115200,8N1 console=tty0 url=http://100.71.102.39/pub/Distros/ubuntu-releases/resolute/ubuntu-26.04-live-server-amd64.iso crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
  SourcePackage: systemd
  SystemdFailedUnits:
   Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
   Unit \xe2\x97\x8f.service could not be found.
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/16/2026
  dmi.bios.release: 1.16
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.16.2
  dmi.board.name: 02MGVC
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 23
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.16.2:bd01/16/2026:br1.16:svnDellInc.:pnPowerEdgeR6615:pvr:rvnDellInc.:rn02MGVC:rvrA00:cvnDellInc.:ct23:cvr:skuSKU=0AF6;ModelName=PowerEdgeR6615:pfaPowerEdge:
  dmi.product.family: PowerEdge
  dmi.product.name: PowerEdge R6615
  dmi.product.sku: SKU=0AF6;ModelName=PowerEdge R6615
  dmi.sys.vendor: Dell Inc.

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