[Bug 1921593] [NEW] do-release-upgrade fails with no error

[Malte Jan Kaffenberger]

Public bug reported:

$ lsb_release -rd
Description:    Ubuntu 18.04.5 LTS
Release:        18.04

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.42
ProcVersionSignature: Ubuntu 4.15.0-139.143-generic 4.15.18
Uname: Linux 4.15.0-139-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7.23
Architecture: amd64
CrashDB: ubuntu
Date: Sat Mar 27 19:10:01 2021
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2021-03-27 (0 days ago)

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


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

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https://bugs.launchpad.net/bugs/1921593

Title:
  do-release-upgrade fails with no error

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

Bug description:
  $ lsb_release -rd
  Description:    Ubuntu 18.04.5 LTS
  Release:        18.04

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.42
  ProcVersionSignature: Ubuntu 4.15.0-139.143-generic 4.15.18
  Uname: Linux 4.15.0-139-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.9-0ubuntu7.23
  Architecture: amd64
  CrashDB: ubuntu
  Date: Sat Mar 27 19:10:01 2021
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-03-27 (0 days ago)

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