If you set your UMASK in /etc/login.defs to 077 then after running "netplan apply" systemd-networkd won't be able to read its configuration files and start:
systemd-networkd[2826]: Could not load configuration files: Permission denied
Annoyingly to report such a thing as bug you need a proper network connection with working DNS before you submit in ubuntu-bug or it will just quit and lose the report. A workaround seems to be to run "ubuntu-bug nplan" then in another terminal run "umask 022" then "netplan apply" before submitting.
If you set your UMASK in /etc/login.defs to 077 then after running "netplan apply" systemd-networkd won't be able to read its configuration files and start: networkd[ 2826]: Could not load configuration files: Permission denied
systemd-
Annoyingly to report such a thing as bug you need a proper network connection with working DNS before you submit in ubuntu-bug or it will just quit and lose the report. A workaround seems to be to run "ubuntu-bug nplan" then in another terminal run "umask 022" then "netplan apply" before submitting.
ProblemType: Bug ature: Ubuntu 4.13.0- 17.20-generic 4.13.8
DistroRelease: Ubuntu 17.10
Package: nplan 0.30
ProcVersionSign
Uname: Linux 4.13.0-17-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.5
Architecture: amd64
Date: Thu Dec 7 10:20:37 2017
ProcEnviron:
LANGUAGE=en_CA:en
TERM=screen
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
SourcePackage: nplan
UpgradeStatus: No upgrade log present (probably fresh install)