[Bug 1909911] Re: Upgrade to 20.04.1 fails

Tue Jan 5 05:02:19 UTC 2021

Thank you Brian for your response. I will update after trying this solution.
Best,
Siddhartha

On Tue, Jan 5, 2021 at 4:50 AM Brian Murray <1909911 at bugs.launchpad.net>
wrote:

> You appear to have packages installed from the universe part of the
> Ubuntu archive but there is no entry for universe in
> /etc/apt/sources.list file. This is likely causing the upgrade to the
> new release of Ubuntu to fail. Please re-add universe to your
> /etc/apt/soruces.list file install any updates for your current release
> of Ubuntu and then try the upgrade again.
>
> ** Changed in: ubuntu-release-upgrader (Ubuntu)
>        Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1909911
>
> Title:
>   Upgrade to 20.04.1 fails
>
> Status in ubuntu-release-upgrader package in Ubuntu:
>   Incomplete
>
> Bug description:
>   I am trying to upgrade from Ubuntu 18.04 to Ubuntu 20.04.1 using the
>   "software updater" which prompts me that there is a new LTS release.
>
>   Here is the error message:
>   ==
>   Could not calculate the upgrade
>
>   An unresolvable problem occurred while calculating the upgrade.
>
>    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'.
>   ==
>   And last few lines from /var/log/dist-upgrade/main.log
>   ==
>   2021-01-03 21:07:30,440 DEBUG need_server_mode(): run in 'desktop' mode,
> (because of pkg 'ubuntu-desktop')
>   2021-01-03 21:07:30,440 DEBUG quirks: running PreDistUpgradeCache
>   2021-01-03 21:07:30,440 DEBUG running Quirks.PreDistUpgradeCache
>   2021-01-03 21:07:30,441 INFO checking for python-dbg
>   2021-01-03 21:07:30,441 INFO checking for python-doc
>   2021-01-03 21:07:30,441 INFO checking for python-minimal
>   2021-01-03 21:07:30,441 INFO installing python-is-python2 because
> python-minimal was installed
>   2021-01-03 21:07:30,441 DEBUG Installing 'python-is-python2'
> (python-minimal was installed on the system)
>   2021-01-03 21:07:30,441 INFO removing python-minimal because
> python-is-python2 is being installed
>   2021-01-03 21:07:30,441 DEBUG Removing 'python-minimal'
> (python-is-python2 is being installed on the system)
>   ==
>
>   Thanks
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 18.04
>   Package: ubuntu-release-upgrader-core 1:18.04.41
>   ProcVersionSignature: Ubuntu 4.15.0-128.131-generic 4.15.18
>   Uname: Linux 4.15.0-128-generic x86_64
>   ApportVersion: 2.20.9-0ubuntu7.21
>   Architecture: amd64
>   CrashDB: ubuntu
>   CurrentDesktop: ubuntu:GNOME
>   Date: Sun Jan  3 21:07:55 2021
>   InstallationDate: Installed on 2018-08-04 (883 days ago)
>   InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
> (20180725)
>   PackageArchitecture: all
>   SourcePackage: ubuntu-release-upgrader
>   UpgradeStatus: Upgraded to bionic on 2021-01-03 (0 days ago)
>   VarLogDistupgradeTermlog:
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1909911/+subscriptions
>

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https://bugs.launchpad.net/bugs/1909911

Title:
  Upgrade to 20.04.1 fails

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

Bug description:
  I am trying to upgrade from Ubuntu 18.04 to Ubuntu 20.04.1 using the
  "software updater" which prompts me that there is a new LTS release.

  Here is the error message:
  ==
  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

   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'.
  ==
  And last few lines from /var/log/dist-upgrade/main.log
  ==
  2021-01-03 21:07:30,440 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
  2021-01-03 21:07:30,440 DEBUG quirks: running PreDistUpgradeCache
  2021-01-03 21:07:30,440 DEBUG running Quirks.PreDistUpgradeCache
  2021-01-03 21:07:30,441 INFO checking for python-dbg
  2021-01-03 21:07:30,441 INFO checking for python-doc
  2021-01-03 21:07:30,441 INFO checking for python-minimal
  2021-01-03 21:07:30,441 INFO installing python-is-python2 because python-minimal was installed
  2021-01-03 21:07:30,441 DEBUG Installing 'python-is-python2' (python-minimal was installed on the system)
  2021-01-03 21:07:30,441 INFO removing python-minimal because python-is-python2 is being installed
  2021-01-03 21:07:30,441 DEBUG Removing 'python-minimal' (python-is-python2 is being installed on the system)
  ==

  Thanks

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.41
  ProcVersionSignature: Ubuntu 4.15.0-128.131-generic 4.15.18
  Uname: Linux 4.15.0-128-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.21
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Jan  3 21:07:55 2021
  InstallationDate: Installed on 2018-08-04 (883 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-01-03 (0 days ago)
  VarLogDistupgradeTermlog:

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