[Bug 1807323] Re: Unable to update 18.04 to 18.10

[Juhani Numminen]

Hi!

It seems like you've installed 3rd party drivers. Please remove them and
see if the upgrade succeeds then.

Quoting https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers

=== Upgrading to a newer Ubuntu ===
It is *strongly* suggested to remove all packages from this PPA before updating to a newer Ubuntu release. See the section "Revert to original drivers" later on.
Then, after the upgrade, you can add again this PPA.

=== Revert to original drivers ===
To revert to standard Ubuntu drivers type the following in a prompt shell:
$ sudo apt-get install ppa-purge
$ sudo ppa-purge ppa:oibaf/graphics-drivers


** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1807323

Title:
  Unable to update 18.04 to 18.10

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

Bug description:
  $ sudo apt do-release-upgrade
  .
  .
  .

  Checking package manager
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done

  Calculating the changes

  Calculating the changes

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  This can be caused by: 
  * Upgrading to a pre-release version of Ubuntu 
  * Running the current pre-release version of Ubuntu 
  * Unofficial software packages not provided by Ubuntu 

  If none of this applies, then please report this bug using the 
  command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. 

  
  Restoring original system state

  Aborting
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.29
  ProcVersionSignature: Ubuntu 4.13.0-22.25-generic 4.13.13
  Uname: Linux 4.13.0-22-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.5
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Dec  6 21:08:11 2018
  InstallationDate: Installed on 2016-10-24 (773 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2018-12-07 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2018-12-06T10:28:19.136187

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