Public bug reported: The message I get is (I am translating from Spanish):
"It is not possible to calculate the upgrade. There has been a problem while calculating the upgrade. This could be caused by: - Upgrading to an Ubuntu version not released yet. - Being running the current version of Ubuntu, not released yet. - Non-official software packages not provided by Ubuntu. If none of this applies, inform of this error using the command "ubuntu-bug ubuntu-release-upgrader-core" from a terminal" The 2 first options do not apply to my case. And to avoid the 3rd option, I have uninstalled all of the non-official packages that I had (dropbox, owncloud, chrome, spotify and virtualbox), and disabled the corresponding sources in /etc/apt/sources.list.d/, without success. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: ubuntu-release-upgrader-core 1:17.04.9 ProcVersionSignature: Ubuntu 4.10.0-38.42-generic 4.10.17 Uname: Linux 4.10.0-38-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia ApportVersion: 2.20.4-0ubuntu4.5 Architecture: amd64 CrashDB: ubuntu Date: Tue Oct 31 11:10:41 2017 InstallationDate: Installed on 2012-01-23 (2107 days ago) InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=es_ES.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to zesty on 2017-10-31 (0 days ago) VarLogDistupgradeTermlog: ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug dist-upgrade third-party-packages zesty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1728882 Title: I can't upgrade to 17.10 from 17.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1728882/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs