[Bug 1513631] [NEW] on trying to upload from 15.05 to 15.10 via an update proposed following a round of normal updates, I get the message "Es konnte nicht ermittelt werden, welche Systemaktualisierungen verfügbar sind [it couldn't be determined which system updates are available] "

[MDPC]

Public bug reported:

I have no further information. The update was stopped with the message
given in the summary "Es konnte nicht ermittelt werden, welche
Systemaktualisierungen verfügbar sind [it couldn't be determined which
system updates are available] " and none of the three cases it proposed
might be responsible are responsible:

 Dies kann verursacht worden sein durch [This can be caused by]:
 * Aktualisieren auf eine Vorabversion von Ubuntu [Updating to a preliminary/advance version of Ubuntu]
 * Verwendung der aktuellen Vorabversion von Ubuntu [Using the current preliminary/advance version of Ubuntu]
 * Inoffizielle Softwarepakete, die nicht von Ubuntu bereitgestellt wurden [Unofficial software, which wasn't provided by Ubuntu]

I currently use Ubuntu GNOME 15.04 32 bit

The package I wanted to install was the official update to Ubuntu 15.10

I expected my version to update. The above message, however, appeared
instead, stopping the install.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubuntu-release-upgrader-core 1:15.04.14.3
ProcVersionSignature: Ubuntu 3.19.0-32.37-generic 3.19.8-ckt7
Uname: Linux 3.19.0-32-generic i686
NonfreeKernelModules: wl
ApportVersion: 2.17.2-0ubuntu1.7
Architecture: i386
CrashDB: ubuntu
CurrentDesktop: GNOME
Date: Thu Nov  5 22:40:36 2015
InstallationDate: Installed on 2014-06-07 (515 days ago)
InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to vivid on 2015-11-05 (0 days ago)
VarLogDistupgradeTermlog:

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


** Tags: apport-bug dist-upgrade i386 third-party-packages vivid

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https://bugs.launchpad.net/bugs/1513631

Title:
  on trying to upload from 15.05 to 15.10 via an update proposed
  following a round of normal updates,  I get the message "Es konnte
  nicht ermittelt werden, welche Systemaktualisierungen verfügbar sind
  [it couldn't be determined which system updates are available] "

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

Bug description:
  I have no further information. The update was stopped with the message
  given in the summary "Es konnte nicht ermittelt werden, welche
  Systemaktualisierungen verfügbar sind [it couldn't be determined which
  system updates are available] " and none of the three cases it
  proposed might be responsible are responsible:

   Dies kann verursacht worden sein durch [This can be caused by]:
   * Aktualisieren auf eine Vorabversion von Ubuntu [Updating to a preliminary/advance version of Ubuntu]
   * Verwendung der aktuellen Vorabversion von Ubuntu [Using the current preliminary/advance version of Ubuntu]
   * Inoffizielle Softwarepakete, die nicht von Ubuntu bereitgestellt wurden [Unofficial software, which wasn't provided by Ubuntu]

  I currently use Ubuntu GNOME 15.04 32 bit

  The package I wanted to install was the official update to Ubuntu
  15.10

  I expected my version to update. The above message, however, appeared
  instead, stopping the install.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: ubuntu-release-upgrader-core 1:15.04.14.3
  ProcVersionSignature: Ubuntu 3.19.0-32.37-generic 3.19.8-ckt7
  Uname: Linux 3.19.0-32-generic i686
  NonfreeKernelModules: wl
  ApportVersion: 2.17.2-0ubuntu1.7
  Architecture: i386
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Thu Nov  5 22:40:36 2015
  InstallationDate: Installed on 2014-06-07 (515 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to vivid on 2015-11-05 (0 days ago)
  VarLogDistupgradeTermlog:

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