systemd[1]: Failed to start Raise network interfaces.

[dino99]

I usually do installation via a netboot mini.iso, and was wondering why i was not finding the 'wired' settings into Settings -> Network, only the 'vpn' settings are displayed.

A forum thread have told me that 'netplan (package name is nplan) by default doesn't use NetworkManager when installed from netboot'
https://ubuntuforums.org/showthread.php?t=2379460

Hope to get the next netboot doing a full installation when the bionic iso will be proposed.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: nplan 0.32
ProcVersionSignature: Ubuntu 4.14.0-11.13-generic 4.14.3
Uname: Linux 4.14.0-11-generic x86_64
ApportVersion: 2.20.8-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME
Date: Thu Dec 7 08:06:48 2017
EcryptfsInUse: Yes
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: nplan
UpgradeStatus: No upgrade log present (probably fresh install)

[dino99 (9d9)]

What this should be ?

cat /run/NetworkManager/conf.d/netplan.conf
[keyfile]
# devices managed by networkd
unmanaged-devices+=interface-name:enp2s0

oem@ubuntu:~$ networkctl | cat
IDX LINK TYPE OPERATIONAL SETUP
  1 lo loopback carrier unmanaged
  2 enp2s0 ether routable configuring

[dino99 (9d9)]

Feedback:

oem@ubuntu:~$ systemctl status networking.service
● networking.service - Raise network interfaces
   Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Tue 2017-12-19 11:33:57 CET; 2min 2s ago
     Docs: man:interfaces(5)
  Process: 723 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE)
  Process: 721 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] && udevadm settle (code=exited, status=1/FAILURE)
 Main PID: 723 (code=exited, status=1/FAILURE)

ubuntu ifup[723]: /etc/network/interfaces:6: unknown or no address type and no inherits keyword specified
ubuntu ifup[723]: /sbin/ifup: couldn't read interfaces file "/etc/network/interfaces"
ubuntu sh[721]: /etc/network/interfaces:6: unknown or no address type and no inherits keyword specified
ubuntu sh[721]: ifquery: couldn't read interfaces file "/etc/network/interfaces"
ubuntu systemd[1]: Starting Raise network interfaces...
ubuntu systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
ubuntu systemd[1]: networking.service: Failed with result 'exit-code'.
ubuntu systemd[1]: Failed to start Raise network interfaces.

[dino99 (9d9)]

oem@ubuntu:~$ cat /etc/network/interfaces
# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
# Generated by debian-installer.

# The loopback interface
auto lo
iface lo inet loopback

Some similar issues are pointing to udev rules:
https://askubuntu.com/questions/824376/failed-to-start-raise-network-interfaces-after-upgrading-to-16-04
https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/

oem@ubuntu:~$ ls -l /etc/udev/rules.d/
total 0

[dino99 (9d9)]

Looks like we need waiting for systemd v236 to get the required patch
https://github.com/systemd/systemd/commit/a39f92d391ac1ce06b3618874ff4211ecb11f549

[dino99 (9d9)]

journalctl does not log that error now