[Bug 1795872] Re: upgrade to 18.01 crashes

[Mark Wiltshire]

Here is command line output - both desktop and command line both failed
with same error


----------------------------------------------


bamboo at ubuntu ~ $ sudo do-release-upgrade
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [819 B]                                           
Get:2 Upgrade tool [1,258 kB]                                                  
Fetched 1,259 kB in 0s (0 B/s)                                                 
authenticate 'bionic.tar.gz' against 'bionic.tar.gz.gpg' 
extracting 'bionic.tar.gz'

Reading cache

Checking package manager
Reading package lists... Done
Building dependency tree        
Reading state information... Done
Hit http://ppa.launchpad.net/certbot/certbot/ubuntu xenial InRelease           
Get:1 http://security.ubuntu.com/ubuntu xenial-security InRelease [107 kB]     
Hit http://gb.archive.ubuntu.com/ubuntu xenial InRelease                       
Get:2 http://gb.archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]    
Hit http://ppa.launchpad.net/ondrej/php/ubuntu xenial InRelease                
Get:3 http://gb.archive.ubuntu.com/ubuntu xenial-backports InRelease [107 kB]  
Fetched 323 kB in 0s (0 B/s)                                                   
Reading package lists... Done    
Building dependency tree          
Reading state information... Done

Updating repository information

Third party sources disabled

Some third party entries in your sources.list were disabled. You can 
re-enable them after the upgrade with the 'software-properties' tool 
or your package manager. 

To continue please press [ENTER]

Hit http://gb.archive.ubuntu.com/ubuntu bionic InRelease                                             
Hit http://gb.archive.ubuntu.com/ubuntu bionic-updates InRelease                                     
Hit http://security.ubuntu.com/ubuntu bionic-security InRelease                                      
Hit http://gb.archive.ubuntu.com/ubuntu bionic-backports InRelease                                   
Fetched 0 B in 0s (0 B/s)                                                                            

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

Calculating the changes

Calculating the changes

Could not determine 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


** Summary changed:

- upgrade to 18.01 crashes
+ upgrade to 18.01 crashes - Could not determine the upgrade

** Summary changed:

- upgrade to 18.01 crashes - Could not determine the upgrade
+ upgrade to 16.04 to 18.01 fails - Could not determine the upgrade

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https://bugs.launchpad.net/bugs/1795872

Title:
  upgrade to 16.04 to 18.01 fails - Could not determine the upgrade

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

Bug description:
  no real information just says it cannot do it ????

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  ProcVersionSignature: Ubuntu 4.4.0-137.163-generic 4.4.144
  Uname: Linux 4.4.0-137-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Wed Oct  3 12:44:35 2018
  InstallationDate: Installed on 2016-08-30 (763 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-10-03 (0 days ago)

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