[Bug 1573692] Re: BAD signature from "Ubuntu Archive Automatic Signing Key <ftpmaster at ubuntu.com>"

[Launchpad Bug Tracker]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no
activity for 60 days.]

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

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https://bugs.launchpad.net/bugs/1573692

Title:
  BAD signature from "Ubuntu Archive Automatic Signing Key
  <ftpmaster at ubuntu.com>"

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

Bug description:
  Just wanted to upgrade a 14.04 LTS to 16.04 LTS with update-manager -d

  Aborts with

  Checking for a new Ubuntu release
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcher.py:86: Warning: g_object_ref: assertion 'object->ref_count > 0' failed
    res = self.widgets.dialog_release_notes.run()
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcher.py:86: Warning: g_object_unref: assertion 'object->ref_count > 0' failed
    res = self.widgets.dialog_release_notes.run()
  authenticate 'xenial.tar.gz' against 'xenial.tar.gz.gpg' 
  gpg exited 1
  Debug information: 

  
  gpg: Signature made Sa 16 Apr 2016 18:33:59 CEST using DSA key ID 437D05B5
  gpg: /tmp/ubuntu-release-upgrader-yr0ts0k7/trustdb.gpg: trustdb created
  gpg: BAD signature from "Ubuntu Archive Automatic Signing Key <ftpmaster at ubuntu.com>"

  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
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: XFCE
  Date: Fri Apr 22 18:23:55 2016
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: No upgrade log present (probably fresh install)

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