[Bug 2129797] [NEW] upgrade failed after preparation. I have a default system on an old Dell machine.

[Paul Noble]

Public bug reported:

I really don't have any additional information to report, but this bug
description is mandatory. Preparation completed, and then it reported
that some information was missing in the etc folder. I never touch that
thing myself.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.41
ProcVersionSignature: Ubuntu 5.4.0-216.236-generic 5.4.291
Uname: Linux 5.4.0-216-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.31
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
Date: Sat Oct 25 12:19:05 2025
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+loki-n3-v3-whl+X32
InstallationDate: Installed on 2020-11-17 (1803 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2025-10-25 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2025-10-25 12:16:04.589855
 Log time: 2025-10-25 12:16:18.405827
 Log time: 2025-10-25 12:17:44.884620
 Log time: 2025-10-25 12:19:09.619372
VarLogDistupgradeTermlog:
 
mtime.conffile..etc.update-manager.release-upgrades: 2024-06-21T08:46:55.639197

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


** Tags: amd64 apport-bug dist-upgrade focal

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https://bugs.launchpad.net/bugs/2129797

Title:
  upgrade failed after preparation. I have a default system on an old
  Dell machine.

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

Bug description:
  I really don't have any additional information to report, but this bug
  description is mandatory. Preparation completed, and then it reported
  that some information was missing in the etc folder. I never touch
  that thing myself.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.41
  ProcVersionSignature: Ubuntu 5.4.0-216.236-generic 5.4.291
  Uname: Linux 5.4.0-216-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.31
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  Date: Sat Oct 25 12:19:05 2025
  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+loki-n3-v3-whl+X32
  InstallationDate: Installed on 2020-11-17 (1803 days ago)
  InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38
  PackageArchitecture: all
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2025-10-25 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2025-10-25 12:16:04.589855
   Log time: 2025-10-25 12:16:18.405827
   Log time: 2025-10-25 12:17:44.884620
   Log time: 2025-10-25 12:19:09.619372
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2024-06-21T08:46:55.639197

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