[Bug 1577930] Re: Failed to upgrade from Trusty to Xenial when using "sudo update-manager -d"

[Brian Murray]

You shouldn't need to run update-manager with sudo, it will elevate
privileges later on during the process.  Additionally, it looks like it
was attempting to upgrade to 15.10 (wily).  Is that the release you want
to upgrade to?  If not then edit /etc/update-manager/release-upgrades
and change Prompt to lts instead of normal.

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1577930

Title:
  Failed to upgrade from Trusty to Xenial when using "sudo update-
  manager -d"

Status in ubuntu-release-upgrader package in Ubuntu:
  Incomplete

Bug description:
  from terminal:

  sudo update-manager -d

  software updater runs and gives the option to upgrade, when I hit the
  upgrade button it exits and this is the only thing that is on
  terminal:

  alexisb at alexisb-ThinkPad-X1-Carbon-2nd:~$ sudo update-manager -d
  [sudo] password for alexisb: 
  Hangup
  alexisb at alexisb-ThinkPad-X1-Carbon-2nd:~$

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.13.0-85.129-generic 3.13.11-ckt36
  Uname: Linux 3.13.0-85-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Tue May  3 13:32:28 2016
  InstallationDate: Installed on 2014-06-20 (682 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-05-03 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2016-05-03 12:30:23.112657
   Log time: 2016-05-03 12:30:39.457615

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