[Bug 1537294] Re: ubuntu-release-upgrader craches on " Setting new software channels" !

[Sary Muhammad]

** Description changed:

-  on my Attempt  to upgrade from trusty to xenial using the upgrader GUI,
- it craches on the 2nd step ' setting new software channels' with the
- error  :
+ on my Attempt to upgrade from trusty to xenial gnome desktop version
+ using the upgrader GUI, it craches on the 2nd step ' setting new
+ software channels' with the error  :
  
  " 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 ".
+  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 ".
  
  ##
  
  sm at tru:~$ lsb_release -rd
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04
  sm at tru:~$ apt-cache policy ubuntu-release-upgrader-core
  ubuntu-release-upgrader-core:
-   Installed: 1:0.220.8
-   Candidate: 1:16.04.3
-   Version table:
-      1:16.04.3 0
-         500 http://sa.archive.ubuntu.com/ubuntu/ xenial/main amd64 Packages
-  *** 1:0.220.8 0
-         100 /var/lib/dpkg/status
+   Installed: 1:0.220.8
+   Candidate: 1:16.04.3
+   Version table:
+      1:16.04.3 0
+         500 http://sa.archive.ubuntu.com/ubuntu/ xenial/main amd64 Packages
+  *** 1:0.220.8 0
+         100 /var/lib/dpkg/status
  sm at tru:~$
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.19.0-47.53~14.04.1-generic 3.19.8-ckt10
  Uname: Linux 3.19.0-47-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Sat Jan 23 04:19:06 2016
  InstallationDate: Installed on 2016-01-21 (1 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-01-23 (0 days ago)
  VarLogDistupgradeTermlog:

** Description changed:

- on my Attempt to upgrade from trusty to xenial gnome desktop version
- using the upgrader GUI, it craches on the 2nd step ' setting new
+ on my Attempt to upgrade from trusty to gnome desktop version xenial
+ xerus using the upgrader GUI, it craches on the 2nd step ' setting new
  software channels' with the error  :
  
  " 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 ".
  
  ##
  
  sm at tru:~$ lsb_release -rd
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04
  sm at tru:~$ apt-cache policy ubuntu-release-upgrader-core
  ubuntu-release-upgrader-core:
    Installed: 1:0.220.8
    Candidate: 1:16.04.3
    Version table:
       1:16.04.3 0
          500 http://sa.archive.ubuntu.com/ubuntu/ xenial/main amd64 Packages
   *** 1:0.220.8 0
          100 /var/lib/dpkg/status
  sm at tru:~$
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.19.0-47.53~14.04.1-generic 3.19.8-ckt10
  Uname: Linux 3.19.0-47-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Sat Jan 23 04:19:06 2016
  InstallationDate: Installed on 2016-01-21 (1 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-01-23 (0 days ago)
  VarLogDistupgradeTermlog:

** Description changed:

- on my Attempt to upgrade from trusty to gnome desktop version xenial
+ on my Attempt to upgrade from trusty gnome desktop version to xenial
  xerus using the upgrader GUI, it craches on the 2nd step ' setting new
  software channels' with the error  :
  
  " 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 ".
  
  ##
  
  sm at tru:~$ lsb_release -rd
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04
  sm at tru:~$ apt-cache policy ubuntu-release-upgrader-core
  ubuntu-release-upgrader-core:
    Installed: 1:0.220.8
    Candidate: 1:16.04.3
    Version table:
       1:16.04.3 0
          500 http://sa.archive.ubuntu.com/ubuntu/ xenial/main amd64 Packages
   *** 1:0.220.8 0
          100 /var/lib/dpkg/status
  sm at tru:~$
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.19.0-47.53~14.04.1-generic 3.19.8-ckt10
  Uname: Linux 3.19.0-47-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Sat Jan 23 04:19:06 2016
  InstallationDate: Installed on 2016-01-21 (1 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-01-23 (0 days ago)
  VarLogDistupgradeTermlog:

-- 
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/1537294

Title:
  ubuntu-release-upgrader craches on " Setting new software channels" !

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

Bug description:
  on my Attempt to upgrade from trusty gnome desktop version to xenial
  xerus using the upgrader GUI, it craches on the 2nd step ' setting new
  software channels' with the error  :

  " 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 ".

  ##

  sm at tru:~$ lsb_release -rd
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04
  sm at tru:~$ apt-cache policy ubuntu-release-upgrader-core
  ubuntu-release-upgrader-core:
    Installed: 1:0.220.8
    Candidate: 1:16.04.3
    Version table:
       1:16.04.3 0
          500 http://sa.archive.ubuntu.com/ubuntu/ xenial/main amd64 Packages
   *** 1:0.220.8 0
          100 /var/lib/dpkg/status
  sm at tru:~$

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.19.0-47.53~14.04.1-generic 3.19.8-ckt10
  Uname: Linux 3.19.0-47-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Sat Jan 23 04:19:06 2016
  InstallationDate: Installed on 2016-01-21 (1 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-01-23 (0 days ago)
  VarLogDistupgradeTermlog:

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1537294/+subscriptions