[Bug 1792657] Re: upgrading to 18.04 from 16.04 fails

[Juhani Numminen]

The Mainlog gives a long list "obsolete" packages. You could remove any
you don't need and retry the upgrade.

2018-09-14 20:52:35,201 DEBUG Obsolete: anbox-common anbox-modules-dkms
audiocd-kio bluez-gstreamer cndrvcups-common cndrvcups-ufr2-us fonts-
droid friends friends-dispatcher friends-facebook friends-identica
friends-twitter gazebo9 gazebo9-common gazebo9-plugin-base
gir1.2-syncmenu-0.1 gir1.2-vte-2.90 gnome-media google-chrome-stable
gstreamer0.10-ffmpeg gstreamer0.10-fluendo-mp3 gstreamer0.10-plugins-
bad-multiverse gwibber-service gwibber-service-facebook gwibber-service-
identica gwibber-service-twitter hal-info ibus-pinyin-db-android intel-
linux-graphics-installer kde-config-tablet kubuntu-firefox-installer
kubuntu-settings-netbook landscape-client-ui-install libaccounts-qt1
libapt-inst1.5 libapt-pkg4.12 libavcodec-extra-53 libavcodec54
libavformat53 libavutil-extra-51 libavutil52 libboost-date-time1.49.0
libcamel-1.2-43 libcamel-1.2-45 libcolord1 libdb5.1 libdirac-encoder0
libdotconf1.0 libebackend-1.2-7 libebook-1.2-14 libebook-contacts-1.2-0
libedata-book-1.2-20 libedataserver-1.2-17 libedataserver-1.2-18
libfriends0 libgazebo9 libgazebo9-dev libgcrypt11 libgdata13 libgee2
libglew1.8 libglewmx1.8 libgnome-bluetooth11 libgnome-media-
profiles-3.0-0 libgnome-menu2 libgnutls26 libgps20 libgtop2-7
libhal1-flash libhomerun0 libicu48 libignition-cmake-dev libignition-
common libignition-common-dev libignition-fuel-tools-dev libignition-
fuel-tools1-1 libignition-fuel-tools1-dev libignition-math4 libignition-
math4-dev libignition-msgs libignition-msgs-dev libignition-transport4
libignition-transport4-dev libkephal4abi1 libkms1 libksgrd4
libkworkspace4abi2 liblcms1 libllvm3.1 libllvm3.3 libllvm3.4:i386
liblouis2 libminiupnpc8 libmng1 libmpc2 libmusicbrainz5-0
libnepomukcore4abi1 liboil0.3 libopenjpeg2 libparted0debian1 libplasma-
geolocation-interface4 libplasmaclock4abi4 libplasmagenericshell4
libplist1 libplymouth2 libpostproc52 libprocesscore4abi1 libprocps0
libprotobuf7 libprotoc7 libreoffice-emailmerge libreoffice-presentation-
minimizer libreoffice-presenter-console libruby1.9.1 libsdformat6
libsdformat6-dev libswscale2 libsync-menu1 libt1-5 libtaskmanager4abi5
libtasn1-3 libtelepathy-farstream2 libufe-xidgetter0 libupower-glib1
libusbmuxd2 libvpx1 libvte-2.90-9 libvte-2.90-common libweather-ion6
libwpd-0.9-9 libwps-0.2-2 libwxbase2.8-0 libwxgtk-media2.8-0
libwxgtk2.8-0 libx264-123 libx264-142 libxatracker1 libxcb-util0 libxp6
lightdm-remote-session-freerdp lightdm-remote-session-uccsconfigure
linux-headers-3.11.0-13 linux-headers-3.11.0-13-generic linux-
headers-3.11.0-15 linux-headers-3.11.0-15-generic linux-
headers-4.12.4-041204 linux-headers-4.12.4-041204-generic linux-
image-3.11.0-13-generic linux-image-3.11.0-15-generic linux-
image-3.13.0-74-generic linux-image-3.5.0-28-generic linux-
image-3.8.0-32-generic linux-image-4.12.4-041204-generic linux-image-
extra-3.11.0-13-generic linux-image-extra-3.11.0-15-generic linux-image-
extra-3.5.0-28-generic linux-image-extra-3.8.0-32-generic nepomuk-core-
data pam-kwallet plasma-dataengines-workspace plasma-netbook plasma-
scriptengine-python plasma-widget-facebook plasma-widget-homerun plasma-
widget-menubar plasma-widget-networkmanagement plasma-widgets-workspace
python-gnupginterface python-ibus python-old-doctools remote-login-
service rhythmbox-ubuntuone rts-bpp-dkms ruby1.9.1 spotify-client
system76-driver systemconfigurator systemimager-client systemimager-
common systemimager-initrd-template-amd64 teamviewer:i386 ttf-indic-
fonts-core ubuntu-extras-keyring udisks ukuu unity-lens-friends unity-
lens-gwibber xfonts-mathml xul-ext-unity xul-ext-websites-integration

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1792657

Title:
  upgrading to 18.04 from 16.04 fails

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

Bug description:
  attempting to upgrade from 16.04 to 18.04, it looks like it might be
  failing because it can't release a lock, but that makes no sense; I'm
  pretty sure it's because of a held package, but I can't figure out
  which one, any ideas?

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  Uname: Linux 4.12.4-041204-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Fri Sep 14 20:54:56 2018
  InstallationDate: Installed on 2012-10-18 (2157 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-09-15 (0 days ago)
  VarLogDistupgradeTermlog:

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