[Bug 1936239] Re: do-release-upgrade Could not exec dpkg! Exception during pm.DoInstall(): E:Sub-process /bin/true returned an error code (100)

[Ubuntu Foundations Team Bug Bot]

** Tags added: xenial2bionic

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https://bugs.launchpad.net/bugs/1936239

Title:
  do-release-upgrade Could not exec dpkg! Exception during
  pm.DoInstall():  E:Sub-process /bin/true returned an error code (100)

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

Bug description:
  # do-release-upgrade -f DistUpgradeViewNonInteractive
  Checking for a new Ubuntu release
  Get:1 Upgrade tool signature [819 B]
  Get:2 Upgrade tool [1,247 kB]
  Fetched 1,247 kB in 0s (0 B/s)
  authenticate 'bionic.tar.gz' against 'bionic.tar.gz.gpg'
  extracting 'bionic.tar.gz'
  No candidate ver:  linux-image-4.15.0-1063-azure
  No candidate ver:  linux-image-4.15.0-1064-azure
  No candidate ver:  linux-image-4.15.0-1067-azure
  No candidate ver:  linux-image-4.15.0-1071-azure
  No candidate ver:  linux-image-4.15.0-1075-azure
  No candidate ver:  linux-image-4.15.0-1077-azure
  No candidate ver:  linux-image-4.15.0-1098-azure
  No candidate ver:  linux-modules-4.15.0-1063-azure
  No candidate ver:  linux-modules-4.15.0-1064-azure
  No candidate ver:  linux-modules-4.15.0-1067-azure
  No candidate ver:  linux-modules-4.15.0-1071-azure
  No candidate ver:  linux-modules-4.15.0-1075-azure
  No candidate ver:  linux-modules-4.15.0-1077-azure
  No candidate ver:  linux-modules-4.15.0-1098-azure
  Could not exec dpkg!
  Exception during pm.DoInstall():  E:Sub-process /bin/true returned an error code (100)

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.32
  ProcVersionSignature: Ubuntu 4.15.0-1113.126~16.04.1-azure 4.15.18
  Uname: Linux 4.15.0-1113-azure x86_64
  NonfreeKernelModules: microsoft_dependency_agent bluechannel
  ApportVersion: 2.20.1-0ubuntu2.30
  Architecture: amd64
  CrashDB: ubuntu
  Date: Wed Jul 14 16:05:35 2021
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-new
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2021-07-14 (0 days ago)
  VarLogDistupgradeApttermlog:
   Log started: 2021-07-14  16:02:17
   Could not exec dpkg!
   Log ended: 2021-07-14  16:02:17
  VarLogDistupgradeLspcitxt:
   00:00.0 Host bridge [0600]: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (AGP disabled) [8086:7192] (rev 03)
   00:07.0 ISA bridge [0601]: Intel Corporation 82371AB/EB/MB PIIX4 ISA [8086:7110] (rev 01)
   00:07.1 IDE interface [0101]: Intel Corporation 82371AB/EB/MB PIIX4 IDE [8086:7111] (rev 01)
   00:07.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 02)
   00:08.0 VGA compatible controller [0300]: Microsoft Corporation Hyper-V virtual VGA [1414:5353]

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