[Bug 1573919] [NEW] do-release-upgrade 15.10 -> 16.04 failed due to squid3 and unity

[Marius Gedminas]

Public bug reported:

I've a laptop running Ubuntu GNOME that also acts as my home server.
It's always on, runs things like a local squid-deb-proxy, and it's
connected to my TV for entertainment (hence GNOME).

I was trying to upgrade it from 15.10 to 16.04 with do-release-upgrade
over ssh, and it failed in the middle:

    Errors were encountered while processing:                                                                                                       
     squid3                                                                                                                                         
     unity                                                                                                                                          
                                                                                                                                                    
    Upgrade complete                                                                                                                                
                                                                                                                                                    
    The upgrade has completed but there were errors during the upgrade                                                                              
    process.                                                                                                                                        

I'm now recovering with 'apt dist-upgrade -f --auto-remove', and I hope
that ubuntu-bug attached the relevant log files from /var/log/dist-
upgrade/ to make this bug report useful.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.12
ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5
Uname: Linux 4.2.0-35-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CrashDB: ubuntu
Date: Sat Apr 23 10:41:59 2016
InstallationDate: Installed on 2012-11-02 (1267 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
PackageArchitecture: all
ProcEnviron:
 LC_CTYPE=lt_LT.UTF-8
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to xenial on 2016-04-23 (0 days ago)

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


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

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https://bugs.launchpad.net/bugs/1573919

Title:
  do-release-upgrade 15.10 -> 16.04 failed due to squid3 and unity

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

Bug description:
  I've a laptop running Ubuntu GNOME that also acts as my home server.
  It's always on, runs things like a local squid-deb-proxy, and it's
  connected to my TV for entertainment (hence GNOME).

  I was trying to upgrade it from 15.10 to 16.04 with do-release-upgrade
  over ssh, and it failed in the middle:

      Errors were encountered while processing:                                                                                                       
       squid3                                                                                                                                         
       unity                                                                                                                                          
                                                                                                                                                      
      Upgrade complete                                                                                                                                
                                                                                                                                                      
      The upgrade has completed but there were errors during the upgrade                                                                              
      process.                                                                                                                                        

  I'm now recovering with 'apt dist-upgrade -f --auto-remove', and I
  hope that ubuntu-bug attached the relevant log files from /var/log
  /dist-upgrade/ to make this bug report useful.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.12
  ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5
  Uname: Linux 4.2.0-35-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Sat Apr 23 10:41:59 2016
  InstallationDate: Installed on 2012-11-02 (1267 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  PackageArchitecture: all
  ProcEnviron:
   LC_CTYPE=lt_LT.UTF-8
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2016-04-23 (0 days ago)

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