[Bug 1859116] Re: package update-notifier-common 0.154.1 failed to install/upgrade: pre-dependency problem - not installing update-notifier-common

[Steve Langasek]

Your dpkg log shows you are upgrading:

apt:amd64 (1.0.1ubuntu2.24, 1.6.12)
update-notifier-common:amd64 (0.154.1, 3.192.1.7)

So somehow you were attempting to do an upgrade directly from Ubuntu
14.04 to Ubuntu 18.04, which is not supported.

** Changed in: update-notifier (Ubuntu)
       Status: Expired => New

** Changed in: update-notifier (Ubuntu)
       Status: New => Invalid

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Title:
  package update-notifier-common 0.154.1 failed to install/upgrade: pre-
  dependency problem - not installing update-notifier-common

Status in update-notifier package in Ubuntu:
  Invalid

Bug description:
  Upgrading from Ubuntu 14.04 to 16.04 (do-release-upgrade) gave the
  following error:

  dpkg: regarding .../update-notifier-common_3.192.1.7_all.deb containing update-notifier-common, pre-dependency problem:
   update-notifier-common pre-depends on apt (>= 1.1~)
    apt latest configured version is 1.0.1ubuntu2.24.

  dpkg: error processing archive /var/cache/apt/archives/update-notifier-common_3.192.1.7_all.deb (--unpack):
   pre-dependency problem - not installing update-notifier-common
  Error in function:

  SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1)
  Error in sys.excepthook:
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/problem_report.py", line 416, in add_to_existing
      self.write(f)
    File "/usr/lib/python3/dist-packages/problem_report.py", line 369, in write
      block = f.read(1048576)
    File "/usr/lib/python3.4/codecs.py", line 313, in decode
      (result, consumed) = self._buffer_decode(data, self.errors, final)
  UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: update-notifier-common 0.154.1
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  Date: Thu Jan  9 23:52:00 2020
  DuplicateSignature: package:update-notifier-common:0.154.1:pre-dependency problem - not installing update-notifier-common
  ErrorMessage: pre-dependency problem - not installing update-notifier-common
  InstallationDate: Installed on 2017-05-16 (968 days ago)
  InstallationMedia: Ubuntu-Server 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.3)
  PackageArchitecture: all
  SourcePackage: update-notifier
  Title: package update-notifier-common 0.154.1 failed to install/upgrade: pre-dependency problem - not installing update-notifier-common
  UpgradeStatus: Upgraded to xenial on 2020-01-10 (0 days ago)

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