[Bug 1897348] [NEW] Upgrade from ubuntu 18.04 to ubuntu 20.04 error

Paul 1897348 at bugs.launchpad.net
Fri Sep 25 22:33:16 UTC 2020 

Public bug reported:

I ran the terminal cmd sudo do-release-upgrade -d and errored out 
An unresolvable problem occurred while calculating the upgrade. 

This was caused by: 
* Upgrading to a pre-release version of Ubuntu 
This is most likely a transient problem, 
please try again later. 
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'. 


from logs /var/log/dist-upgrade/main.log

2020-09-25 17:14:27,701 DEBUG updateSourcesList()
2020-09-25 17:14:27,710 DEBUG rewriteSourcesList() with mirror_check
2020-09-25 17:14:27,711 DEBUG ['ubuntu-minimal', 'ubuntu-standard']
2020-09-25 17:14:27,711 DEBUG Checking pkg: ubuntu-minimal
2020-09-25 17:14:27,712 DEBUG BaseMetaPkg 'ubuntu-minimal' has no candidate.origins
2020-09-25 17:14:27,843 ERROR NoDistroTemplateException raised: Error: could not find a distribution template for Ubuntu/bionic
Traceback (most recent call last):
  File "/tmp/ubuntu-release-upgrader-l840cs21/DistUpgrade/DistUpgradeController.py", line 538, in rewriteSourcesList
    distro.get_sources(self.sources)
  File "/tmp/ubuntu-release-upgrader-l840cs21/DistUpgrade/distro.py", line 93, in get_sources
    (self.id, self.codename))
DistUpgrade.distro.NoDistroTemplateException: Error: could not find a distribution template for Ubuntu/bionic
2020-09-25 17:14:27,844 DEBUG get_distro().enable_component("main") failed, overwriting sources.list instead as last resort
2020-09-25 17:14:27,845 DEBUG examining: 'deb http://archive.canonical.com/ubuntu bionic partner'
2020-09-25 17:14:27,845 DEBUG verifySourcesListEntry: deb http://archive.canonical.com/ubuntu focal partner
2020-09-25 17:14:27,846 DEBUG url_downloadable: http://archive.canonical.com/ubuntu/dists/focal/Release
2020-09-25 17:14:27,846 DEBUG s='http' n='archive.canonical.com' p='/ubuntu/dists/focal/Release' q='' f=''
2020-09-25 17:14:27,924 DEBUG entry 'deb http://archive.canonical.com/ubuntu focal partner' updated to new dist
2020-09-25 17:14:27,924 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu focal main restricted # auto generated by ubuntu-release-upgrader'
2020-09-25 17:14:27,924 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal main restricted # auto generated by ubuntu-release-upgrader' is already set to new dist
2020-09-25 17:14:27,925 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu focal-updates main restricted # auto generated by ubuntu-release-upgrader'
2020-09-25 17:14:27,925 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-updates main restricted # auto generated by ubuntu-release-upgrader' is already set to new dist
2020-09-25 17:14:27,925 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu focal-security main restricted # auto generated by ubuntu-release-upgrader'
2020-09-25 17:14:27,925 DEBUG entry 'deb http://security.ubuntu.com/ubuntu focal-security main restricted # auto generated by ubuntu-release-upgrader' is already set to new dist
2020-09-25 17:14:27,927 DEBUG running doUpdate() (showErrors=True)
2020-09-25 17:14:33,447 DEBUG openCache()
2020-09-25 17:14:33,780 DEBUG Comparing 5.3.0-40 with 
2020-09-25 17:14:33,781 DEBUG Comparing 5.4.0-42 with 5.3.0-40
2020-09-25 17:14:33,782 DEBUG Comparing 5.4.0-47 with 5.4.0-42
2020-09-25 17:14:33,782 DEBUG Comparing 5.4.0-48 with 5.4.0-47
2020-09-25 17:14:33,830 DEBUG /openCache(), new cache size 10189
2020-09-25 17:14:33,830 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2020-09-25 17:14:33,831 DEBUG quirks: running PreDistUpgradeCache
2020-09-25 17:14:33,831 DEBUG running Quirks.PreDistUpgradeCache
2020-09-25 17:14:33,831 INFO installing python-is-python2 because python-minimal was installed
2020-09-25 17:14:33,831 DEBUG Installing 'python-is-python2' (python-minimal was installed on the system)
2020-09-25 17:14:33,831 INFO removing python-minimal because python-is-python2 is being installed
2020-09-25 17:14:33,831 DEBUG Removing 'python-minimal' (python-is-python2 is being installed on the system)
2020-09-25 17:14:34,524 ERROR Dist-upgrade failed: 'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'
2020-09-25 17:14:34,528 DEBUG abort called
2020-09-25 17:14:34,529 DEBUG openCache()
2020-09-25 17:14:34,730 DEBUG Comparing 5.3.0-40 with 
2020-09-25 17:14:34,731 DEBUG Comparing 5.4.0-42 with 5.3.0-40
2020-09-25 17:14:34,731 DEBUG Comparing 5.4.0-47 with 5.4.0-42
2020-09-25 17:14:34,731 DEBUG Comparing 5.4.0-48 with 5.4.0-47
2020-09-25 17:14:34,747 DEBUG /openCache(), new cache size 2695


I ran all updates and upgrades to ubuntu 18.04

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.38 [origin: unknown]
ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.17
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity:Unity7:ubuntu
Date: Fri Sep 25 17:23:36 2020
InstallationDate: Installed on 2019-08-06 (416 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-09-25 (0 days ago)

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


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

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1897348

Title:
  Upgrade from ubuntu 18.04 to ubuntu 20.04 error

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

Bug description:
  I ran the terminal cmd sudo do-release-upgrade -d and errored out 
  An unresolvable problem occurred while calculating the upgrade. 

  This was caused by: 
  * Upgrading to a pre-release version of Ubuntu 
  This is most likely a transient problem, 
  please try again later. 
  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'. 

  
  from logs /var/log/dist-upgrade/main.log

  2020-09-25 17:14:27,701 DEBUG updateSourcesList()
  2020-09-25 17:14:27,710 DEBUG rewriteSourcesList() with mirror_check
  2020-09-25 17:14:27,711 DEBUG ['ubuntu-minimal', 'ubuntu-standard']
  2020-09-25 17:14:27,711 DEBUG Checking pkg: ubuntu-minimal
  2020-09-25 17:14:27,712 DEBUG BaseMetaPkg 'ubuntu-minimal' has no candidate.origins
  2020-09-25 17:14:27,843 ERROR NoDistroTemplateException raised: Error: could not find a distribution template for Ubuntu/bionic
  Traceback (most recent call last):
    File "/tmp/ubuntu-release-upgrader-l840cs21/DistUpgrade/DistUpgradeController.py", line 538, in rewriteSourcesList
      distro.get_sources(self.sources)
    File "/tmp/ubuntu-release-upgrader-l840cs21/DistUpgrade/distro.py", line 93, in get_sources
      (self.id, self.codename))
  DistUpgrade.distro.NoDistroTemplateException: Error: could not find a distribution template for Ubuntu/bionic
  2020-09-25 17:14:27,844 DEBUG get_distro().enable_component("main") failed, overwriting sources.list instead as last resort
  2020-09-25 17:14:27,845 DEBUG examining: 'deb http://archive.canonical.com/ubuntu bionic partner'
  2020-09-25 17:14:27,845 DEBUG verifySourcesListEntry: deb http://archive.canonical.com/ubuntu focal partner
  2020-09-25 17:14:27,846 DEBUG url_downloadable: http://archive.canonical.com/ubuntu/dists/focal/Release
  2020-09-25 17:14:27,846 DEBUG s='http' n='archive.canonical.com' p='/ubuntu/dists/focal/Release' q='' f=''
  2020-09-25 17:14:27,924 DEBUG entry 'deb http://archive.canonical.com/ubuntu focal partner' updated to new dist
  2020-09-25 17:14:27,924 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu focal main restricted # auto generated by ubuntu-release-upgrader'
  2020-09-25 17:14:27,924 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal main restricted # auto generated by ubuntu-release-upgrader' is already set to new dist
  2020-09-25 17:14:27,925 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu focal-updates main restricted # auto generated by ubuntu-release-upgrader'
  2020-09-25 17:14:27,925 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu focal-updates main restricted # auto generated by ubuntu-release-upgrader' is already set to new dist
  2020-09-25 17:14:27,925 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu focal-security main restricted # auto generated by ubuntu-release-upgrader'
  2020-09-25 17:14:27,925 DEBUG entry 'deb http://security.ubuntu.com/ubuntu focal-security main restricted # auto generated by ubuntu-release-upgrader' is already set to new dist
  2020-09-25 17:14:27,927 DEBUG running doUpdate() (showErrors=True)
  2020-09-25 17:14:33,447 DEBUG openCache()
  2020-09-25 17:14:33,780 DEBUG Comparing 5.3.0-40 with 
  2020-09-25 17:14:33,781 DEBUG Comparing 5.4.0-42 with 5.3.0-40
  2020-09-25 17:14:33,782 DEBUG Comparing 5.4.0-47 with 5.4.0-42
  2020-09-25 17:14:33,782 DEBUG Comparing 5.4.0-48 with 5.4.0-47
  2020-09-25 17:14:33,830 DEBUG /openCache(), new cache size 10189
  2020-09-25 17:14:33,830 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
  2020-09-25 17:14:33,831 DEBUG quirks: running PreDistUpgradeCache
  2020-09-25 17:14:33,831 DEBUG running Quirks.PreDistUpgradeCache
  2020-09-25 17:14:33,831 INFO installing python-is-python2 because python-minimal was installed
  2020-09-25 17:14:33,831 DEBUG Installing 'python-is-python2' (python-minimal was installed on the system)
  2020-09-25 17:14:33,831 INFO removing python-minimal because python-is-python2 is being installed
  2020-09-25 17:14:33,831 DEBUG Removing 'python-minimal' (python-is-python2 is being installed on the system)
  2020-09-25 17:14:34,524 ERROR Dist-upgrade failed: 'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'
  2020-09-25 17:14:34,528 DEBUG abort called
  2020-09-25 17:14:34,529 DEBUG openCache()
  2020-09-25 17:14:34,730 DEBUG Comparing 5.3.0-40 with 
  2020-09-25 17:14:34,731 DEBUG Comparing 5.4.0-42 with 5.3.0-40
  2020-09-25 17:14:34,731 DEBUG Comparing 5.4.0-47 with 5.4.0-42
  2020-09-25 17:14:34,731 DEBUG Comparing 5.4.0-48 with 5.4.0-47
  2020-09-25 17:14:34,747 DEBUG /openCache(), new cache size 2695

  
  I ran all updates and upgrades to ubuntu 18.04

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38 [origin: unknown]
  ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
  Uname: Linux 5.4.0-42-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.17
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity:Unity7:ubuntu
  Date: Fri Sep 25 17:23:36 2020
  InstallationDate: Installed on 2019-08-06 (416 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-09-25 (0 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1897348/+subscriptions

More information about the foundations-bugs mailing list