Public bug reported: the message was: "An unresolvable problem occurred while calculating the upgrade." if I do: "grep Broken /var/log/dist-upgrade/apt.log" I got a lot of Broken packages with unresolved dependencies or conflicts, e.g.: Broken libglib2.0-0:amd64 Rompe on libgnome-desktop-3-2 [ amd64 ] < 3.4.2-0ubuntu0.2 > ( libs ) (< 3.4.2-2) Broken python3:amd64 Dipende on python3.4 [ amd64 ] < none -> 3.4.0-2ubuntu1 > ( python ) (>= 3.4.0-0~) Broken tex-common:amd64 Rompe on texlive-common [ amd64 ] < 2009-15 > ( tex ) (< 2010) Broken cups-filters:amd64 Va in conflitto on foomatic-filters [ amd64 ] < 4.0.16-0ubuntu0.2 -> 4.0.17-1ubuntu1 > ( universe/text ) Broken cups-filters:amd64 Va in conflitto on ghostscript-cups [ amd64 ] < 9.05~dfsg-0ubuntu4.2 > ( text ) Broken python3-gi:amd64 Dipende on python3 [ amd64 ] < 3.2.3-0ubuntu1.2 -> 3.4.0-0ubuntu2 > ( python ) (< 3.5) Broken python3-minimal:amd64 Dipende on python3.4-minimal [ amd64 ] < none -> 3.4.0-2ubuntu1 > ( python ) (>= 3.4.0-0~) Broken dh-python:amd64 Dipende on python3:any [ amd64 ] < none > ( none ) (>= 3.3.2-2~) Broken lsb-release:amd64 Dipende on python3 [ amd64 ] < 3.2.3-0ubuntu1.2 -> 3.4.0-0ubuntu2 > ( python ) Broken texlive-base:amd64 Va in conflitto on texlive-doc-base [ amd64 ] < 2009-2 > ( tex ) Broken libunity9:amd64 Rompe on unity-common [ amd64 ] < 5.20.0-0ubuntu3 > ( gnome ) (< 7.1.2) Broken xz-utils:amd64 Va in conflitto on xz-lzma [ amd64 ] < 5.1.1alpha+20110809-3 > ( utils ) Broken python3-apt:amd64 Dipende on python3 [ amd64 ] < 3.2.3-0ubuntu1.2 -> 3.4.0-0ubuntu2 > ( python ) (< 3.5) Broken python3-dbus:amd64 Dipende on python3 [ amd64 ] < 3.2.3-0ubuntu1.2 -> 3.4.0-0ubuntu2 > ( python ) (>= 3.4~) Broken gnome-menus:amd64 Dipende on python3:any [ amd64 ] < none > ( none ) (>= 3.1~) Broken libgoa-1.0-0b:amd64 Va in conflitto on libgoa-1.0-0 [ amd64 ] < 3.4.0-0ubuntu1.1 > ( libs ) Broken rhythmbox:amd64 Dipende on python3 [ amd64 ] < 3.2.3-0ubuntu1.2 -> 3.4.0-0ubuntu2 > ( python ) (< 3.5) Broken software-properties-gtk:amd64 Dipende on python3 [ amd64 ] < 3.2.3-0ubuntu1.2 -> 3.4.0-0ubuntu2 > ( python ) Broken aptdaemon:amd64 Dipende on python3:any [ amd64 ] < none > ( none ) (>= 3.2~) Broken libnetcdfc7:amd64 Rompe on libnetcdf6 [ amd64 ] < 1:4.1.1-6 > ( libs ) (< 1:4.1.1-7~
..and many many others.. I really don't know what to do. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: update-manager 1:0.156.14.17 ProcVersionSignature: Ubuntu 3.2.0-67.101-generic 3.2.60 Uname: Linux 3.2.0-67-generic x86_64 ApportVersion: 2.0.1-0ubuntu17.6 Architecture: amd64 Date: Wed Aug 13 00:33:27 2014 GsettingsChanges: InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MarkForUpload: True PackageArchitecture: all SourcePackage: update-manager Symptom: ubuntu-release-upgrader-core UpgradeStatus: Upgraded to precise on 2014-08-12 (0 days ago) ** Affects: update-manager (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug dist-upgrade precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1356087 Title: no way to update ubuntu from the distribution 12.04 to the 14.04 LTSs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1356087/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs