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

[Stephan Diestelhorst]

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.

[Stephan Diestelhorst (syon)]

Enabled deb sources at this moment:

$ find /etc/apt/*list -exec cat {} \;|grep "^[^#]"
deb http://de.archive.ubuntu.com/ubuntu/ wily main restricted
deb-src http://de.archive.ubuntu.com/ubuntu/ wily main restricted
deb http://de.archive.ubuntu.com/ubuntu/ wily-updates main restricted
deb-src http://de.archive.ubuntu.com/ubuntu/ wily-updates main restricted
deb http://de.archive.ubuntu.com/ubuntu/ wily universe
deb-src http://de.archive.ubuntu.com/ubuntu/ wily universe
deb http://de.archive.ubuntu.com/ubuntu/ wily-updates universe
deb-src http://de.archive.ubuntu.com/ubuntu/ wily-updates universe
deb http://de.archive.ubuntu.com/ubuntu/ wily multiverse
deb-src http://de.archive.ubuntu.com/ubuntu/ wily multiverse
deb http://de.archive.ubuntu.com/ubuntu/ wily-updates multiverse
deb-src http://de.archive.ubuntu.com/ubuntu/ wily-updates multiverse
deb http://de.archive.ubuntu.com/ubuntu/ wily-backports main restricted universe multiverse
deb-src http://de.archive.ubuntu.com/ubuntu/ wily-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu wily-security main restricted
deb-src http://security.ubuntu.com/ubuntu wily-security main restricted
deb http://security.ubuntu.com/ubuntu wily-security universe
deb-src http://security.ubuntu.com/ubuntu wily-security universe
deb http://security.ubuntu.com/ubuntu wily-security multiverse
deb-src http://security.ubuntu.com/ubuntu wily-security multiverse
deb http://archive.canonical.com/ubuntu wily partner
deb-src http://archive.canonical.com/ubuntu wily partner
deb http://deb.torproject.org/torproject.org wily main

[Stephan Diestelhorst (syon)]

Zooming in a little on specific packages:

$ LANG=C apt-cache policy bzip2
bzip2:
  Installed: 1.0.6-5
  Candidate: 1.0.6-8
  Version table:
     1.0.6-8 0
        500 http://de.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
 *** 1.0.6-5 0
        100 /var/lib/dpkg/status

$ LANG=C apt-cache policy libbz2-1.0
libbz2-1.0:
  Installed: 1.0.6-8
  Candidate: 1.0.6-8
  Version table:
 *** 1.0.6-8 0
        500 http://de.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
        100 /var/lib/dpkg/status

Etc. So something is really broken here.