[Bug 1790202] Re: Ubuntu 16.04 on powerpc offered to upgrade to 18.04

[Brian Murray]

Big-endian PowerPC support was dropped after 16.10. There is no upgrade
path from 16.04.5, however it will be supported for another ~3 years.

https://lists.ubuntu.com/archives/ubuntu-devel-
announce/2016-December/001199.html

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https://bugs.launchpad.net/bugs/1790202

Title:
  Ubuntu 16.04 on powerpc offered to upgrade to 18.04

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

Bug description:
  After the last update, the system ask me to upgrade to Ubuntu 18.04
  which (to my knowledge) is not exists for PowerPC 32 or 64bit Big
  Endian (I have a PowerMac G5 Quad Core).

  What the hell is happening?

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  ProcVersionSignature: Ubuntu 4.4.0-134.160-powerpc64-smp 4.4.140
  Uname: Linux 4.4.0-134-powerpc64-smp ppc64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: powerpc
  CrashDB: ubuntu
  Date: Fri Aug 31 21:15:07 2018
  InstallationDate: Installed on 2016-10-14 (685 days ago)
  InstallationMedia: Ubuntu-MATE 16.04.1 LTS "Xenial Xerus" - Release powerpc (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-08-31 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2018-08-31 21:13:39.351986
   Log time: 2018-08-31 21:13:47.762246
   Log time: 2018-08-31 21:14:45.789367
   Log time: 2018-08-31 21:15:10.598264
  VarLogDistupgradeTermlog:

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