[Bug 1898042] [NEW] Upgrade to 20.4 from 18.04 fails

[Gabor Csejtey]

Public bug reported:

No held packages:
 dpkg -l | grep -v "^ii"|grep -v "^rc"
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                                                             Version                                             Architecture Description
+++-================================================================-===================================================-============-==================================================================================================

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:20.04.24 [origin: unknown]
ProcVersionSignature: Ubuntu 4.15.0-117.118-generic 4.15.18
Uname: Linux 4.15.0-117-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.6
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: XFCE
Date: Thu Oct  1 14:54:21 2020
InstallationDate: Installed on 2017-12-09 (1026 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-10-01 (0 days ago)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic dist-upgrade third-party-packages uec-images

** Attachment added: "apt.log"
   https://bugs.launchpad.net/bugs/1898042/+attachment/5416088/+files/apt.log

** Attachment removed: "apt.log"
   https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1898042/+attachment/5416088/+files/apt.log

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https://bugs.launchpad.net/bugs/1898042

Title:
  Upgrade to 20.4 from 18.04 fails

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

Bug description:
  No held packages:
   dpkg -l | grep -v "^ii"|grep -v "^rc"
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name                                                             Version                                             Architecture Description
  +++-================================================================-===================================================-============-==================================================================================================

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:20.04.24 [origin: unknown]
  ProcVersionSignature: Ubuntu 4.15.0-117.118-generic 4.15.18
  Uname: Linux 4.15.0-117-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.6
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: XFCE
  Date: Thu Oct  1 14:54:21 2020
  InstallationDate: Installed on 2017-12-09 (1026 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-10-01 (0 days ago)

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