I upgraded to Ubuntu 20.04 via do-release-upgrade -d. From the terminal everything looked fine. However, when I reboot my desktop again, I found that it's a broken upgrade, icons are lost, some apps like nautilus can't launch, etc.
I ran apt update and it shows 357 packages can be upgraded. but when I did apt upgrade -y
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
gir1.2-appindicator3-0.1 libice6:i386 libsm6:i386 libxt6:i386 python-notify
Use 'sudo apt autoremove' to remove them.
The following packages have been kept back:
appstream blender blender-data colord compizconfig-settings-manager cpp-7
cups cups-bsd cups-client cups-core-drivers cups-daemon cups-filters
cups-filters-core-drivers cups-ipp-utils cups-ppdc dash deja-dup dpkg
evolution-data-server fcitx-frontend-qt5 fcitx-modules fontforge
fontforge-common fwupd fwupd-signed fwupdate gcc-7 gcc-7-base gcc-7-multilib
gcc-8-base gcc-8-base:i386 gdal-data ghostscript ghostscript-x
gir1.2-freedesktop gir1.2-glib-2.0 gir1.2-gnomedesktop-3.0
gir1.2-gst-plugins-base-1.0 gir1.2-gtk-3.0 gir1.2-ibus-1.0 gir1.2-pango-1.0
gir1.2-polkit-1.0 gir1.2-rb-3.0 gir1.2-soup-2.4 gjs glib-networking
glib-networking-services gnome-calendar gnome-control-center
gnome-control-center-data gnome-initial-setup gnome-power-manager
gnome-session-bin gnome-session-common gnome-settings-daemon gnome-shell
gnome-shell-common gnome-shell-extension-appindicator
gnome-shell-extension-ubuntu-dock gnome-software gnome-software-common
gnome-software-plugin-snap gnome-startup-applications gnome-tweaks
gnuplot-data gnuplot-qt gparted gsettings-desktop-schemas gstreamer1.0-alsa
gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-libav
gstreamer1.0-plugins-base gstreamer1.0-plugins-base:i386
gstreamer1.0-plugins-good gstreamer1.0-plugins-ugly gstreamer1.0-pulseaudio
gstreamer1.0-vaapi gstreamer1.0-x gtk-update-icon-cache gvfs gvfs-backends
gvfs-bin gvfs-common gvfs-daemons gvfs-fuse gvfs-libs hplip hplip-data ibus
ibus-gtk ibus-gtk3 lib32asan4 lib32cilkrts5 lib32gcc-7-dev lib32mpx2
lib32ubsan0 libalgorithm-diff-xs-perl libappstream-glib8 libappstream4
libapt-pkg-perl libasan4 libcairo-gobject-perl libcairo-perl libcilkrts5
libclone-perl libcups2 libcups2:i386 libcupsimage2 libdazzle-1.0-0
libebackend-1.2-10 libegl-mesa0 libfcgi-perl libfcitx-qt5-1
libfile-fcntllock-perl libgail-3-0 libgail-common libgail-common:i386
libgail18 libgail18:i386 libgbm1 libgcab-1.0-0 libgcc-7-dev libgcc1
libgcc1:i386 libgfortran4 libgirepository-1.0-1 libgjs0g libgl1-mesa-dri
libgl1-mesa-dri:i386 libglapi-mesa libglapi-mesa:i386
libglib-object-introspection-perl libglib-perl libglib2.0-0
libglib2.0-0:i386 libglib2.0-bin libglib2.0-dev libglib2.0-dev-bin
libglibmm-2.4-1v5 libglx-mesa0 libglx-mesa0:i386 libgs9 libgs9-common
libgstreamer-plugins-bad1.0-0 libgstreamer-plugins-base1.0-0
libgstreamer-plugins-base1.0-0:i386 libgstreamer-plugins-good1.0-0
libgtk-3-0 libgtk-3-bin libgtk2.0-0 libgtk2.0-0:i386 libgtk2.0-bin
libgtkmm-2.4-1v5 libgtkmm-3.0-1v5 libhpmud0 libhtml-parser-perl
libhttp-date-perl libhttp-message-perl libibus-1.0-5 libio-pty-perl
libio-socket-ssl-perl libjavascriptcoregtk-4.0-18 liblist-moreutils-perl
liblocale-gettext-perl libmpx2 libnautilus-extension1a libnet-dbus-perl
libnet-dns-perl libnet-libidn-perl libnet-ssleay-perl libosmesa6
libosmesa6:i386 libpango-1.0-0 libpango-1.0-0:i386 libpangocairo-1.0-0
libpangocairo-1.0-0:i386 libpangoft2-1.0-0 libpangoft2-1.0-0:i386
libpangomm-1.4-1v5 libpangoxft-1.0-0 libperlio-gzip-perl
libplexus-utils2-java libpolkit-agent-1-0 libpolkit-gobject-1-0
libpython-all-dev libpython3-dev libpython3-stdlib libqt5concurrent5
libqt5core5a libqt5dbus5 libqt5gui5 libqt5network5 libqt5opengl5
libqt5opengl5-dev libqt5printsupport5 libqt5qml5 libqt5quick5
libqt5quickcontrols2-5 libqt5quicktemplates2-5 libqt5sql5 libqt5sql5-sqlite
libqt5svg5 libqt5test5 libqt5widgets5 libqt5x11extras5 libqt5xml5
libreoffice-avmedia-backend-gstreamer libreoffice-base-core
libreoffice-common libreoffice-core libreoffice-gnome libreoffice-gtk3
libreoffice-l10n-en-za libreoffice-l10n-zh-cn libreoffice-math
libreoffice-style-breeze libreoffice-style-galaxy libreoffice-style-tango
librhythmbox-core10 libsane-common libsane-hpaio libsane1 libsane1:i386
libsmbclient libsocket6-perl libsoup-gnome2.4-1 libsoup2.4-1 libstdc++-7-dev
libsub-name-perl libtdb1 libtdb1:i386 libtext-charwidth-perl
libtext-iconv-perl libubsan0 libvlc-bin libvlc5 libwbclient0
libwebkit2gtk-4.0-37 libwine libwine:i386 libwww-perl libx32asan4
libx32cilkrts5 libx32gcc-7-dev libx32ubsan0 libxml-libxml-perl
libxml-parser-perl libyaml-libyaml-perl lintian lm-sensors mutter nautilus
nautilus-data octave octave-common orca pavucontrol pdfshuffler perl
perl-base playonlinux policykit-1 printer-driver-brlaser
printer-driver-gutenprint printer-driver-hpcups printer-driver-postscript-hp
python-all python-all-dev python-asn1crypto python-cairo python-cffi-backend
python-crypto python-cryptography python-dbus python-enum34 python-gobject-2
python-idna python-ipaddress python-keyring python-pip-whl
python-pkg-resources python-pypdf2 python-setuptools python-six python-tk
python-wxgtk3.0 python-wxversion python-xdg python3 python3-apt
python3-brlapi python3-cairo python3-cffi-backend python3-crypto
python3-cups python3-dbus python3-dev python3-distutils python3-evdev
python3-gdbm python3-gi python3-gi-cairo python3-lib2to3 python3-markupsafe
python3-minimal python3-netifaces python3-pil python3-pip python3-protobuf
python3-renderpm python3-reportlab python3-reportlab-accel
python3-setproctitle python3-simplejson python3-systemd python3-uno
python3-venv python3-yaml python3-zope.interface qml-module-qt-labs-settings
qml-module-qtgraphicaleffects qml-module-qtquick-controls2
qml-module-qtquick-layouts qml-module-qtquick-templates2
qml-module-qtquick-window2 qml-module-qtquick2 qt5-gtk-platformtheme
qt5-qmake qt5-qmake-bin qtbase5-dev qtbase5-dev-tools rhythmbox
rhythmbox-plugins samba-common samba-common-bin samba-libs sane-utils
texinfo ubuntu-session ubuntu-software unattended-upgrades ure vlc vlc-bin
vlc-data vlc-plugin-base vlc-plugin-qt vlc-plugin-skins2
vlc-plugin-video-output winbind wine-stable wine32:i386 wine64 winetricks
xdg-desktop-portal xdg-desktop-portal-gtk
0 upgraded, 0 newly installed, 0 to remove and 357 not upgraded.
Basically, the system didn't allow me to upgrade. When I tried to install some of these manually, the most common problem it returns is
The following packages have unmet dependencies:
gsettings-desktop-schemas : Breaks: mutter (< 3.31.4) but 3.28.4-0ubuntu18.04.2 is to be installed
libreoffice-common : Breaks: libreoffice-core (< 1:6.4.2~rc1) but 1:6.0.7-0ubuntu0.18.04.10 is to be installed
Recommends: python3-uno (>= 4.4.0~beta2) but it is not going to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
So it's defi something wrong with the dependencies, but I yet don't know how to fix.
Here is my update log where errors are found
$ cat /var/log/dist-upgrade/apt.log|grep error
MarkInstall libgpg-error0:amd64 < 1.27-6 -> 1.37-1 @ii umU IPb > FU=0
new important dependency: libgpg-error-l10n:amd64
Installing libgpg-error-l10n as Recommends of libgpg-error0
MarkInstall libgpg-error-l10n:amd64 < none -> 1.37-1 @un uN > FU=0
This is solved by using
apt full-upgradesuggested by @guiverc. Asman aptdescribes:Also, make sure the check if your repo (
/etc/apt/source.list) is up-to-date.This may often happen when you have installed 3rd party debs. If you can identify the package and remove it you may solve the problem.
I have run into this in the past and can usually circumvent the problem by using the "apt-get dist-upgrade" option. When doing this please remember to run "apt-get autoremove" afterward to get rid of orphaned software.
To avoid the likeliness of such problems in the future please consider using "snaps" or "flatpacks" for any software that is not included in the ubuntu/debian repository.