[Bug 1790509] Re: netplan doesn't configure renamed device

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

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

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Title:
  netplan doesn't configure renamed device

Status in systemd package in Ubuntu:
  Confirmed

Bug description:
  configured yaml file per documentation, ran netplan generate, netplan
  apply. Interfaces are configured at this point.

  Upon reboot the system renames ens18 to mainlink per config, but stops
  after that point. System has no connectivity. mainif shows as DOWN in
  ip addr list, networkctl shows mainif setup as unmanaged

  Logging in via tty and running "sudo netplan apply" restores
  connectivity.

  Description:	Ubuntu 18.04.1 LTS
  Release:	18.04

  yaml file:

  # This file describes the network interfaces available on your system
  # For more information, see netplan(5).
  network:
    version: 2
    renderer: networkd
    ethernets:
      mainif:
        match:
          macaddress: "d2:a0:b9:2b:73:c4"
        set-name: mainif
        dhcp4: false
        dhcp6: false
    vlans:
        vlan5:
          id: 5
          link: mainif
          addresses: [ 10.0.69.15/24 ]
          gateway4: 10.0.69.1
          nameservers:
            search: [ mydomain.com ]
            addresses:
                - "10.0.69.2"

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: systemd 237-3ubuntu10.3
  ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18
  Uname: Linux 4.15.0-33-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  Date: Mon Sep  3 09:42:57 2018
  Lsusb:
   Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd 
   Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-33-generic root=UUID=62ef2837-fce8-4133-ba14-07a7d5eab911 ro splash quiet net.ifnames=0 vt.handoff=1
  SourcePackage: systemd
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.11.0-0-g63451fca13-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.11
  dmi.modalias: dmi:bvnSeaBIOS:bvrrel-1.11.0-0-g63451fca13-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.11:cvnQEMU:ct1:cvrpc-i440fx-2.11:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.11
  dmi.sys.vendor: QEMU

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