I am running into some trouble with this upgrade, I ran a "do-release-upgrade" and I guess that I wasn't paying attention and the system went from ubuntu 14.04 to 15.10 instead of 14.04 to 16.04. There was a problem with upgrading dconf, but I resolved that by creating a folder that the installer was unable to create for some reason. However, when I try to run the upgrade again for 16.04, it fails with the error "Could not calculate upgrade". Some google searches point to looking at the log "/var/log/dist-upgrade/…/apt.log". I can't determine what is causing the issue because of the magnitude of information in the file.
I used grep and cut to filter the apt.log with the command below and the output is…
"grep Broken /var/log/dist-upgrade/20160501-2239/apt.log |cut -d":" -f1|cut -d" " -f2 > /home/sam/Desktop/broken\ packages.txt"
perl-base perl-base findutils libgtk-3-0 libgnutls30 libgnutls30 libgnome-desktop-3-12 libkf5akonadicore-bin libkf5akonadicore-bin libkf5libkdepim5 libmono-corlib2.0-cil libkf5libkleo5 unity-control-center-faces libmono-system2.0-cil libmono-i18n-west2.0-cil libmono-security2.0-cil python3-aptdaemon.pkcompat libmono-posix2.0-cil libpimcommon5 libtext-charwidth-perl libtext-wrapi18n-perl libtext-iconv-perl libmwaw-0.3-3 libodfgen-0.1-1 libkf5messageviewer5 dictionaries-common libsocket6-perl thumbnailer-service thumbnailer-service hunspell-en-us libmailcommon5 buteo-sync-plugins-contacts-google aspell unity-lens-music libmono-system-data2.0-cil libmetacity-private3a vlc python3-click-package libqca2 libmono-system-web2.0-cil libclass-c3-xs-perl libnet-libidn-perl libmono-system-runtime2.0-cil libmono-wcf3.0a-cil libmono-data-tds2.0-cil libvoikko1 libpython3.4-stdlib libmono-system-data-linq2.0-cil libmono-sqlite2.0-cil address-book-updater libidl-2-0 libkf5messagelist5 libkf5ksieveui5 libmono2.0-cil libparams-util-perl libopenobex2 libcalendarsupport5 qml-module-ubuntuone libapt-pkg-perl libtemplateparser5 libfcgi-perl libcdr-0.1-1 libmessagecomposer5 libcheese7 libeventviews5 libmono-system-messaging2.0-cil libmono-accessibility2.0-cil libmono-sharpzip2.84-cil tzdata-java libincidenceeditorsng5 libmono-messaging2.0-cil libmailimporter5 libtext-soundex-perl libmono-webbrowser2.0-cil libwpd-0.10-10v5 icedtea-7-plugin xserver-xorg-input-mouse libperl5.20 libnoteshared5 libcheese-gtk23 libgnutls28 libmono-winforms2.0-cil mono-gmcs libhunspell-1.3-0v5 checkbox-ng-service findutils debconf-i18n debconf-i18n debconf-i18n aspell-en aspell-en libtext-charwidth-perl libtext-wrapi18n-perl libtext-iconv-perl dictionaries-common libio-socket-inet6-perl libsocket6-perl lintian aspell libcgi-fast-perl address-book-service openjdk-7-jre-headless libdata-optlist-perl libpython3.4-stdlib libparams-util-perl libapt-pkg-perl libfcgi-perl tzdata-java findutils debconf-i18n debconf-i18n debconf-i18n aspell-en aspell-en libtext-charwidth-perl libtext-wrapi18n-perl libtext-iconv-perl dictionaries-common libio-socket-inet6-perl libsocket6-perl lintian aspell aspell libcgi-fast-perl qtcontact5-galera openjdk-7-jre-headless libdata-optlist-perl libpython3.4-stdlib libparams-util-perl libapt-pkg-perl libfcgi-perl python3.4 python3.4-minimal tzdata-java libpython3.4 debconf-i18n aspell-en libio-socket-inet6-perl lintian ubuntu-minimal libcgi-fast-perl openjdk-7-jre-headless libdata-optlist-perl libnet-dns-perl libemail-valid-perl openjdk-7-jre openjdk-7-jdk libenchant1c2a libenchant1c2a libenchant1c2a libenchant1c2a libenchant1c2a hunspell-en-us libsub-exporter-perl libgetopt-long-descriptive-perl libdata-section-perl libenchant1c2a libenchant1c2a libenchant1c2a libenchant1c2a libenchant1c2a libenchant1c2a libwebkit2gtk-4.0-37-gtk2 empathy mcp-account-manager-uoa enchant libwebkitgtk-3.0-0 account-plugin-salut account-plugin-jabber gedit gir1.2-webkit-3.0 libsoftware-license-perl libpod-readme-perl libgtkspell3-3-0 libwebkit2gtk-4.0-37 libenchant1c2a libenchant1c2a libenchant1c2a libenchant1c2a libenchant1c2a libenchant1c2a gnome-software libhunspell-1.3-0v5 libenchant1c2a libenchant1c2a libenchant1c2a libenchant1c2a libenchant1c2a ubuntu-software libwebkit2gtk-4.0-37 yelp unity-control-center gnome-user-guide libyelp0 librhythmbox-core9 unity-control-center-signon rhythmbox zenity libgoa-backend-1.0-1 gir1.2-rb-3.0 rhythmbox-plugins gnome-online-accounts rhythmbox-plugin-zeitgeist gir1.2-webkit2-4.0 metacity apturl shotwell ubuntu-docs software-center nautilus-share ubuntu-desktop rhythmbox-plugin-magnatune rhythmbox-plugin-cdrecorder webaccounts-extension-common webaccounts-extension-common xul-ext-webaccounts gnome-control-center ubuntu-release-upgrader-gtk ubuntu-release-upgrader-gtk update-manager gnome-session-flashback gnome-session-fallback
Another file in that "dist-upgrade" log folder was main.log, but the only line that I found of interest was one "ERROR" line that reads…
2016-05-01 22:44:45,086 ERROR Dist-upgrade failed: 'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'
I don't see how there could be broken or held packages, because of the output of the following…
sam@sam-laptop:/var/log/dist-upgrade$ !349 sudo apt-get autoclean Reading package lists... Done Building dependency tree Reading state information... Done sam@sam-laptop:/var/log/dist-upgrade$ !350 sudo apt-get clean sam@sam-laptop:/var/log/dist-upgrade$ !351 sudo apt-get autoremove Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. sam@sam-laptop:/var/log/dist-upgrade$ !531 dpkg --get-selections | grep hold sam@sam-laptop:/var/log/dist-upgrade$
More Troubleshooting:
I also tried the following, which completed without error.
sudo apt-get update --fix-missing sudo dpkg --configure -a sudo apt-get install -f
The next thing I thought of was to disable any non-essential repos, so I disabled multiverse and universe repos in sources.list
Full contents of logs and sources.list pastebin
/var/log/dist-upgrade/20160501-2239/main.log
/var/log/dist-upgrade/20160501-2239/apt.log
/etc/apt/sources.list
My last idea is to just boot into single user mode and force remove all the packages that are marked broken, and try the upgrade again. I am tempted to just install over my current install with 16.04 since /home is on a separate partition, but I really don't want to have to re-install all the software on this machine. Also that's the easy way out. Can somebody please help me analyze what is happening?
Best Answer
This is more of a redirect, but when I posted my broken package issue on launchpad (similarly trying to upgrade from 15.10 to 16.04), I got excellent support. In my case my issue was that I had used a foreign source (a ppa) to install some more recent graphics packages, specifically
libgl1-mesa-dri, libegl1-mesa,andlibgbm1. I had to downgrade those packages to the Ubuntu source versions, and then I was able to proceed with the upgrade. So my suggestion for handling broken package issues is to follow the steps in the OP, e.g.and if that fails, consider whether any ppas might be introducing package versions that would interfere with stock Ubuntu packages. Additionally, if you get extremely frustrated (like I did), get support on Launchpad.