[Bug 1877002] Re: updater not working 2011 Macbook upgrading ubuntu from 16.4

[Ubuntu Foundations Team Bug Bot]

*** This bug is a duplicate of bug 1611737 ***
    https://bugs.launchpad.net/bugs/1611737

** Tags added: xenial2bionic

** This bug has been marked a duplicate of bug 1611737
   Can't upgrade from a release if ros packages are  installed from ROS servers

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https://bugs.launchpad.net/bugs/1877002

Title:
  updater not working 2011 Macbook upgrading ubuntu from 16.4

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

Bug description:
  Try to use the software upgrader and the terminal, no luck. says it
  cant calculate advises using ppa purge

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.29
  ProcVersionSignature: Ubuntu 4.15.0-99.100~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-99-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20.1-0ubuntu2.23
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Tue May  5 15:38:12 2020
  InstallationDate: Installed on 2020-04-25 (10 days ago)
  InstallationMedia: Ubuntu 16.04.6 LTS "Xenial Xerus" - Release amd64 (20190227)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2020-05-05 (0 days ago)
  VarLogDistupgradeTermlog:

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