I have upgraded from Ubuntu 18.04 to 20.04 LTS from the update manager. After upgrade it was not successful and on reboot I found the system having partial upgrade(some icons are from Ubuntu 20.04). On running
sudo apt --fix-broken install
the following error is seen.
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
g++-7 gcc-8-base:i386 gir1.2-mutter-2 gnome-themes-extra
gnome-themes-extra-data gtk2-engines-pixbuf libarmadillo8 libatomic1:i386
libboost-iostreams1.65.1 libboost-locale1.65.1 libbsd0:i386 libcdio17
libctemplate3 libdouble-conversion1 libdrm-amdgpu1:i386 libdrm-nouveau2:i386
libdrm-radeon1:i386 libdrm2:i386 libedit2:i386 libelf1:i386 libexpat1:i386
libffi6:i386 libffi7:i386 libgeos-3.6.2 libgeotiff2 libgmime-3.0-0 libip4tc0
libip6tc0 libiptc0 libisl19 libllvm10:i386 libmozjs-52-0 libmutter-2-0
libmysqlcppconn7v5 libnm-gtk0 libomxil-bellagio-bin libomxil-bellagio0
liborcus-0.13-0 libpcre3:i386 libpcrecpp0v5 libperl5.26 libpodofo0.9.3
libpython3.6-dev libstdc++-7-dev libstdc++6:i386 libsynctex1 libtexlua52
libtinfo5:i386 libtinyxml2.6.2v5 libunistring2:i386 libva2:i386
libvdpau1:i386 libvsqlitepp3v5 libx11-6:i386 libx11-xcb1:i386 libxau6:i386
libxcb-dri2-0:i386 libxcb-dri3-0:i386 libxcb-glx0:i386 libxcb-present0:i386
libxcb-sync1:i386 libxcb-xfixes0:i386 libxcb1:i386 libxdamage1:i386
libxdmcp6:i386 libxext6:i386 libxfixes3:i386 libxshmfence1:i386
libxxf86vm1:i386 libzstd1:i386 mesa-vdpau-drivers:i386 mysql-utilities
mysql-workbench-data python-asn1crypto python-cffi-backend
python-cryptography python-dnspython python-enum34 python-idna
python-ipaddress python-mysql.connector python-paramiko python-pexpect
python-ptyprocess python-pyasn1 python-pyodbc python-pysqlite2 python3-click
python3-colorama python3.6-dev vdpau-driver-all:i386 x11proto-input-dev
x11proto-kb-dev
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
dbus fonts-opensymbol gdal-data gir1.2-rb-3.0 libaec0 libaom0 libarmadillo9
libavcodec58 libavdevice58 libavfilter7 libavformat58 libavresample4
libavutil56 libboost-date-time1.71.0 libboost-filesystem1.71.0
libboost-iostreams1.71.0 libboost-locale1.71.0 libboost-thread1.71.0
libbrlapi0.7 libcfitsio8 libcharls2 libcodec2-0.9 libcoin80c
libcollada-dom2.4-dp0 libdap25 libdapclient6v5 libdc1394-22 libgdal26
libgeos-3.8.0 libgeos-c1v5 libgeotiff5 libgfortran5 libgpgmepp6
libgraphicsmagick-q16-3 libgsm1 libhdf5-103 libjson-c4 liblilv-0-0
libmysofa1 libnetcdf15 libogdi4.1 libopenal-data libopenal1 libopengl0
libopenscenegraph160 libopenthreads21 liborcus-0.15-0 libpodofo0.9.6
libpostproc55 libproj15 libqxp-0.0-0 libreoffice-gtk libreoffice-pdfimport
libreoffice-style-breeze librhythmbox-core10 librubberband2 libsdl2-2.0-0
libserd-0-0 libsnappy1v5 libsndio7.0 libsord-0-0 libsratom-0-0
libssh-gcrypt-4 libswresample3 libswscale5 libsz2 libuno-cppu3
libuno-cppuhelpergcc3-3 libuno-purpenvhelpergcc3-3 libuno-sal3
libuno-salhelpergcc3-3 libva-drm2 libva-x11-2 libva2 libva2:i386
libvidstab1.1 libx264-155 libx265-179 libxmlsec1 libxmlsec1-nss libzmf-0.0-0
ocl-icd-libopencl1 proj-data rhythmbox rhythmbox-data scribus scribus-data
uno-libs-private
Suggested packages:
libopenal0a libsimage-dev libbullet2 geotiff-bin gdal-bin libgeotiff-epsg
graphicsmagick-dbg ogdi-bin breeze-icon-theme serdi sndiod sordi opencl-icd
gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gnome-codec-install
rhythmbox-plugin-cdrecorder icc-profiles scribus-ng-doc scribus-template
Recommended packages:
va-driver-all:i386 | va-driver:i386
The following packages will be REMOVED:
appmenu-qt libdbusmenu-qt2 libebook-1.2-19 libgdal20 libhdf5-100 libnetcdf13
libogdi3.2 libqt4-dbus libqt4-declarative libqt4-network libqt4-script
libqt4-sql libqt4-sql-mysql libqt4-sql-sqlite libqt4-xml libqt4-xmlpatterns
libqtdbus4 libqtgui4 qdbus qt-at-spi uno-libs3
The following NEW packages will be installed:
libaom0 libarmadillo9 libavcodec58 libavdevice58 libavfilter7 libavformat58
libavresample4 libavutil56 libboost-date-time1.71.0
libboost-filesystem1.71.0 libboost-iostreams1.71.0 libboost-locale1.71.0
libboost-thread1.71.0 libbrlapi0.7 libcfitsio8 libcharls2 libcodec2-0.9
libcoin80c libcollada-dom2.4-dp0 libdc1394-22 libgdal26 libgeos-3.8.0
libgeotiff5 libgfortran5 libgraphicsmagick-q16-3 libhdf5-103 libjson-c4
liblilv-0-0 libmysofa1 libnetcdf15 libogdi4.1 libopenal-data libopenal1
libopengl0 libopenscenegraph160 libopenthreads21 liborcus-0.15-0
libpodofo0.9.6 libpostproc55 libproj15 libqxp-0.0-0 libsdl2-2.0-0
libserd-0-0 libsndio7.0 libsord-0-0 libsratom-0-0 libswresample3 libswscale5
libuno-cppu3 libuno-cppuhelpergcc3-3 libuno-purpenvhelpergcc3-3 libuno-sal3
libuno-salhelpergcc3-3 libvidstab1.1 libx264-155 libx265-179 libzmf-0.0-0
ocl-icd-libopencl1 uno-libs-private
The following packages will be upgraded:
dbus fonts-opensymbol gdal-data gir1.2-rb-3.0 libaec0 libdap25
libdapclient6v5 libgeos-c1v5 libgpgmepp6 libgsm1 libreoffice-gtk
libreoffice-pdfimport libreoffice-style-breeze librhythmbox-core10
librubberband2 libsnappy1v5 libssh-gcrypt-4 libsz2 libva-drm2 libva-x11-2
libva2 libva2:i386 libxmlsec1 libxmlsec1-nss proj-data rhythmbox
rhythmbox-data scribus scribus-data
29 upgraded, 59 newly installed, 21 to remove and 1148 not upgraded.
162 not fully installed or removed.
Need to get 0 B/83.4 MB of archives.
After this operation, 158 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Extracting templates from packages: 100%
(Reading database ... 299569 files and directories currently installed.)
Preparing to unpack .../dbus_1.12.16-2ubuntu2.1_amd64.deb ...
Unpacking dbus (1.12.16-2ubuntu2.1) over (1.12.2-1ubuntu1.2) ...
dpkg: error processing archive /var/cache/apt/archives/dbus_1.12.16-2ubuntu2.1_a
md64.deb (--unpack):
unable to install (supposed) new info file '/var/lib/dpkg/tmp.ci/prerm': Is a d
irectory
Errors were encountered while processing:
/var/cache/apt/archives/dbus_1.12.16-2ubuntu2.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
Unable to work around the problem. How can I get a full installtion of Ubuntu 20.0?
