[Bug 1605445] [NEW] can't upgrade system due to some bug

Cindy 1605445 at bugs.launchpad.net
Fri Jul 22 02:54:51 UTC 2016 

Public bug reported:

I'm trying to upgrade my 12.04 LTS to 14.04LTS and everything went fine
till this part... I actually don't know if it's the update manager, but
it says all this towards the end:

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

-------

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.19
Uname: Linux 3.3.8-24-generic i686
ApportVersion: 2.0.1-0ubuntu17.13
Architecture: i386
Date: Thu Jul 21 21:49:25 2016
GsettingsChanges:

MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
Symptom: ubuntu-release-upgrader-core
UpgradeStatus: Upgraded to precise on 2016-07-22 (0 days ago)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug dist-upgrade i386 precise

** Description changed:

- I actually don't know if it's the update manager, but it says all this
- towards the end:
+ I'm trying to upgrade my 12.04 LTS to 14.04LTS and everything went fine
+ till this part... I actually don't know if it's the update manager, but
+ it says all this towards the end:
  
  Checking package manager
- Reading package lists... Done    
- Building dependency tree          
+ Reading package lists... Done
+ Building dependency tree
  Reading state information... Done
- Building data structures... Done 
+ Building data structures... 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 
+ 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. 
- 
+ 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 package lists... Done
+ Building dependency tree
  Reading state information... Done
  Building data structures... Done
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.19
  Uname: Linux 3.3.8-24-generic i686
  ApportVersion: 2.0.1-0ubuntu17.13
  Architecture: i386
  Date: Thu Jul 21 21:49:25 2016
  GsettingsChanges:
-  
+ 
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
-  TERM=xterm
-  PATH=(custom, no user)
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm
+  PATH=(custom, no user)
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2016-07-22 (0 days ago)

** Description changed:

  I'm trying to upgrade my 12.04 LTS to 14.04LTS and everything went fine
  till this part... I actually don't know if it's the update manager, but
  it says all this towards the end:
  
  Checking package manager
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Building data structures... 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
  Building data structures... Done
  
+ -------
+ 
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.19
  Uname: Linux 3.3.8-24-generic i686
  ApportVersion: 2.0.1-0ubuntu17.13
  Architecture: i386
  Date: Thu Jul 21 21:49:25 2016
  GsettingsChanges:
  
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2016-07-22 (0 days ago)

-- 
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https://bugs.launchpad.net/bugs/1605445

Title:
  can't upgrade system due to some bug

Status in update-manager package in Ubuntu:
  New

Bug description:
  I'm trying to upgrade my 12.04 LTS to 14.04LTS and everything went
  fine till this part... I actually don't know if it's the update
  manager, but it says all this towards the end:

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

  -------

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.19
  Uname: Linux 3.3.8-24-generic i686
  ApportVersion: 2.0.1-0ubuntu17.13
  Architecture: i386
  Date: Thu Jul 21 21:49:25 2016
  GsettingsChanges:

  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2016-07-22 (0 days ago)

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