Info I've gathered about this issue so far: The netplan should be written to this location:
/etc/netplan/01-network-manager-all.yaml And should contain: # Let NetworkManager manage all devices on this system network: version: 2 renderer: NetworkManager See this reference: http://bazaar.launchpad.net/~ubuntu-core-dev/livecd- rootfs/trunk/view/head:/live-build/auto/build#L196 If the file is missing, it can be manually added. Ubuntu transitioned to netplan right before version 1.2.2-0ubuntu8. See here: https://lists.ubuntu.com/archives/ubuntu-devel/2016-July/039464.html Additionally, this is related to these 2 bugs: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1638842 https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1658921 When 1.2.2 was released, a globally managed file was created (/etc/NetworkManager/conf.d/10-globally-managed-devices.conf), and a canceling file was also created (/etc/NetworkManager/conf.d/10-globally- managed-devices.conf). https://git.launchpad.net/network-manager/tree/debian/network- manager.postinst#n48 For some reason, either the override file or the netplan file is missing on upgrades. Between the two of them, users are left without fully managed Ethernet and networking when upgrading from 16.04. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1676547 Title: No network connectivity after upgrade from 16.04 to 16.10 Status in network-manager package in Ubuntu: In Progress Bug description: nplan was installed during the upgrade process but I had no network connectivity after upgrading. Apparently, no package wanted to manage my ethernet connection. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: ubuntu-release-upgrader-core 1:16.10.10 ProcVersionSignature: Ubuntu 4.8.0-41.44-generic 4.8.17 Uname: Linux 4.8.0-41-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.3-0ubuntu8.2 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: Unity Date: Mon Mar 27 11:34:04 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2013-01-16 (1531 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130116) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader Symptom: ubuntu-release-upgrader UpgradeStatus: Upgraded to yakkety on 2017-03-17 (10 days ago) VarLogDistupgradeTermlog: modified.conffile..etc.update-manager.meta-release: [modified] mtime.conffile..etc.update-manager.meta-release: 2013-10-08T06:39:09.818913 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1676547/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
