[Bug 1899543] Re: UPgrading from 18.04 to 20. upgrade fails saying ppa needs purging. Purge completed via command line or gui, but ppa seems to reappear, and the same error occurs with the upgrade. Impossible to upgrade

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

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

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Title:
  UPgrading from 18.04 to 20.  upgrade fails saying ppa needs purging.
  Purge completed via command line or gui, but ppa seems to reappear,
  and the same error occurs with the upgrade.  Impossible to upgrade

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

Bug description:

  UPgrading from 18.04 to 20.  upgrade fails saying ppa needs purging.
  Purge completed via command line or gui, but ppa seems to reappear,
  and the same error occurs with the upgrade.  Impossible to upgrade

  "This was likely caused by: 
  * Unofficial software packages not provided by Ubuntu 
  Please use the tool 'ppa-purge' from the ppa-purge 
  package to remove software from a Launchpad PPA and 
  try the upgrade again. 

  If none of this applies, then please report this bug using the 
  command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If 
  you want to investigate this yourself the log files in 
  '/var/log/dist-upgrade' will contain details about the upgrade. 
  Specifically, look at 'main.log' and 'apt.log'. 
  "

  history | grep add-apt-repository

  tells me:

    989  sudo add-apt-repository "deb http://realsense-hw-
  public.s3.amazonaws.com/Debian/apt-repo bionic main" -u

  
  Have done: 

  sudo ppa-purge -s realsense-hw-public.s3.amazonaws.com ppa:Debian/apt-repo 
  sudo ppa-purge -s realsense-hw-public.s3.amazonaws.com ppa:Debian/apt-repo xenial
  sudo ppa-purge -s realsense-hw-public.s3.amazonaws.com ppa:Debian/apt-repo bionic main

  and a variety of others.

  repos seem to return.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38
  ProcVersionSignature: Ubuntu 4.15.0-1050.57-oem 4.15.18
  Uname: Linux 4.15.0-1050-oem x86_64
  NonfreeKernelModules: lkp_Ubuntu_4_15_0_1050_57_oem_59 nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Oct 13 09:43:23 2020
  DistributionChannelDescriptor:
   # This is the distribution channel descriptor for the OEM CDs
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-bionic-amd64-20180608-47+whitehaven-mlk+X67
  InstallationDate: Installed on 2019-08-06 (433 days ago)
  InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-10-12 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2020-10-13T08:18:58.305753

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