I am truly sorry to say that I have tried many of the recommended solutions for this problem but to no avail. I am running Ubuntu 16.04 on a AMD 8-core desktop machine and if I ever ever ever even try to give a command like sudo apt-get update and apt-get upgrade I inevitably find myself with an operating system without ethernet connection. I have been unable to fix that no matter what I have tried so far. I have spent DAYS reading the blogs and trying to get a fix for this bug. In the end the only solution I could find so far was to use the original ssd back up disk to get back to the original system, before the sudo apt-get update etc commands. Can anyone in this forum or elsewhere explain in a simple and clear manner how to fix this major issue with ubuntu upgrades?
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1676547 Title: No network connectivity (NIC unmanaged) after upgrade Status in network-manager package in Ubuntu: Fix Released Status in network-manager source package in Yakkety: Fix Released Status in network-manager source package in Zesty: Fix Released Bug description: Impact ------ When upgrading from Xenial (with all updates installed) to Yakkety/Zesty you will boot to a system without networking - sad! Test Case --------- 1) Boot a xenial desktop system 2) Ensure network-manager version 1.2.6-0ubuntu0.16.04.1 from -updates is installed 3) Upgrade to yakkety or zesty 3.5) Enable -proposed and download the new version of n-m "apt-get download network-manager" 4) Reboot 5) Observe you have no network If you install the version of network-manager from yakkety-proposed and then reboot you should have a network connection. 1) Boot a xenial desktop system. 2) ensure network-manager version 1.2.6-0ubuntu0.16.04.1 from -updates is installed. 3) Install nplan, configure to set up static network on an ethernet device using nplan. 4) Upgrade to yakkety or zesty 5) Reboot 6) Observe that your system is still being managed by networkd rather than NetworkManager. Regression Potential -------------------- Any failure to manage ethernet or wireless devices after upgrade, or issues with the use of netplan in conjunction with NetworkManager should be investigated as potential regressions. For example, if after upgrading, ethernet devices are no longer managed, or if devices that should be explicitly ignored by NetworkManager due to existing user configuration are now managed, these would indicate a possible regression caused by this update. Original 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: BugDistroRelease: 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: allSourcePackage: 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/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp