[Bug 1538323] Re: Kubuntu 14.04.3 -> 15.10 upgrade is broken (PPAs enabled)

[Stephan Diestelhorst]

** Attachment added: "main.log"
   https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1538323/+attachment/4557141/+files/main.log

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Title:
  Kubuntu 14.04.3 -> 15.10 upgrade is broken (PPAs enabled)

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

Bug description:
  I am / was running Kubuntu 14.04.3 with the Kubuntu PPA and the
  backports PPA enabled.  When I wanted to upgrade Kubuntu to 15.10, via
  15.04 through Muon, the upgrade process did not complete due to
  unsolved dependencies.  I have attached my full  /var/log/dist-upgrade

  Examining the dependency issues did not reveal any single culprit to
  me, but instead a pretty bad overall picture.  Thinking that it might
  have to do with the two PPAs, I tried ppa-purge on them, but the
  dependencies during purge were broken, so no package could actually be
  removed.

  I therefore thought to bite the bullet and leave the two PPAs enabled
  and upgrade manually to 15.10 via sed -i 's/trusty/wily/g' over all
  the sources list.  Who'd have thought.. this does not work and I ended
  up (after apt-get update ; apt-get dist-upgrade) in a big web of not
  working *configurations* of packages due to funny versions.  I started
  working on those configurations, tackling things one by one (Apparmor
  syntax issues, for example here https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=763673) and sometimes dpkg -r <package>; apt-get
  download <package>; dpkg -i <package.deb> to force the issue.  That
  seems to have worked to an extend where I managed to get all packages
  configured, but still the overall dependency web is broken.

  From what I can gather, several packages depend on the old versions
  (perl etc), but their new versions would not.  Now.. I do not feel
  like manually forcing the packages to upgrade, and it seems that
  aptitudes dependency resolution does not find a magic solution after
  letting it run for quite a while.  That leads me to believe that I
  will also not do a great job, manually.

  Will attach /var/log/dist-upgrade, /etc/apt/**list.  Not sure what the
  issue really was, but I hope someone else has a better idea how to
  tackle this.  I will move my old root away (LVM) and start a fresh
  install.

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