[Bug 2060681] Re: systemd-networkd-wait-online.service halts booting for 2 1/2 minutes

[Heinrich Schuchardt]

@Nick, thanks for picking this up.

/etc/netplan/ is empty on first boot. It is cloud-init that fills it
with

$ sudo cat 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:
        zz-all-en:
            dhcp4: true
            match:
                name: en*
            optional: true
        zz-all-eth:
            dhcp4: true
            match:
                name: eth*
            optional: true
    version: 2

The available interfaces are:

$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff
    inet 10.0.2.15/24 metric 100 brd 10.0.2.255 scope global dynamic eth0
       valid_lft 86179sec preferred_lft 86179sec
    inet6 fec0::5054:ff:fe12:3456/64 scope site dynamic mngtmpaddr noprefixroute 
       valid_lft 86182sec preferred_lft 14182sec
    inet6 fe80::5054:ff:fe12:3456/64 scope link 
       valid_lft forever preferred_lft forever

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https://bugs.launchpad.net/bugs/2060681

Title:
  systemd-networkd-wait-online.service halts booting for 2 1/2 minutes

Status in systemd package in Ubuntu:
  Incomplete

Bug description:
  When booting http://cdimage.ubuntu.com/ubuntu-server/daily-
  preinstalled/20240409/noble-preinstalled-server-riscv64.img.xz the
  system waits for 2 1/2 minutes for systemd-networkd-wait-
  online.service to time out.

  See attached boot chart.
  --- 
  ProblemType: Bug
  ApportVersion: 2.28.0-0ubuntu1
  Architecture: riscv64
  CasperMD5CheckResult: unknown
  CloudArchitecture: riscv64
  CloudBuildName: server
  CloudID: nocloud
  CloudName: unknown
  CloudPlatform: nocloud
  CloudSerial: 20240409
  CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud-net)
  DistroRelease: Ubuntu 24.04
  Lspci-vt:
   -[0000:00]-+-00.0  Red Hat, Inc. QEMU PCIe Host bridge
              +-01.0  Red Hat, Inc. Virtio RNG
              \-02.0  Red Hat, Inc. Virtio block device
  Lsusb: Error: command ['lsusb'] failed with exit code 1:
  Lsusb-t:
   
  Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
  Package: systemd 255.4-1ubuntu7
  PackageArchitecture: riscv64
  ProcEnviron:
   LANG=C.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=vt220
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-20-generic root=LABEL=cloudimg-rootfs ro efi=debug earlycon init=/lib/systemd/systemd-bootchart
  ProcVersionSignature: Ubuntu 6.8.0-20.20.1-generic 6.8.1
  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.
  Tags: cloud-image noble
  Uname: Linux 6.8.0-20-generic riscv64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: N/A
  _MarkForUpload: True
  acpidump:

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