Ubuntu 24.04 LTS
KDE Plasma
Upgrade from 24.04.1 to 26.04.1 fails with “Upgrade failed with the following output” - a blank window. Apparently ubuntustudio-audio-core is being kept back - but I don’t know how to resolve this?
Welcome to Ubuntu Discourse 
Open a terminal and run these commands:
sudo apt update
sudo apt upgrade
Copy the entire output for each command and post it back here for review.
Click on the </> icon in the composer and paste the content in the grey field before saving.
Thanks
sudo apt update
Hit:1 http://security.ubuntu.com/ubuntu noble-security InRelease
Hit:2 http://archive.ubuntu.com/ubuntu noble InRelease
Hit:3 http://archive.ubuntu.com/ubuntu noble-updates InRelease
Hit:4 http://archive.ubuntu.com/ubuntu noble-backports InRelease
Hit:5 https://repository.mullvad.net/deb/stable noble InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
14 packages can be upgraded. Run 'apt list --upgradable' to see them.
sudo apt upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
linux-headers-6.8.0-142 linux-headers-6.8.0-142-generic pipewire-jack qpwgraph
Use 'sudo apt autoremove' to remove them.
Get more security updates through Ubuntu Pro with 'esm-apps' enabled:
libqt5webengine-data vlc-plugin-qt libvlc5 libimage-magick-perl
libmagickcore-6.q16-7t64 python3-flask-cors libzvbi-common liburiparser1
libgdal34t64 vlc-data gdal-plugins libqt5quickwidgets5 libqt5xml5t64
qml-module-qtquick-shapes libsrt1.5-gnutls qml-module-qtquick-layouts
libqt5webenginewidgets5 libvlccore9 qml-module-qtquick-window2
qt5-gtk-platformtheme libmagick++-6.q16-9t64 vlc libass9
qml-module-qt-labs-settings imagemagick libqt5sql5t64 catdoc atril vlc-bin
libmagickcore-6.q16-7-extra libqt5qml5 libqt5test5t64 python3-waitress
vlc-l10n libqt5quickshapes5 libwebsockets19t64 gimp-data libcjson1
libavdevice60 ffmpeg libqt5quick5 libqt5quickparticles5 libopenexr-3-1-30
libpostproc57 python3-wheel vlc-plugin-samba python3-fonttools libqt5gui5t64
libmbedcrypto7t64 gimp libmbedtls14t64 libavcodec60
libgstreamer-plugins-bad1.0-0 qml-module-qtwebengine libzvbi0t64
libimage-magick-q16-perl atril-common libqt5printsupport5t64 konsole
vlc-plugin-notify libqt5webengine5 libqt5concurrent5t64 libavutil58
libqt5widgets5t64 imagemagick-6.q16 libswscale7
qml-module-qt-labs-folderlistmodel libatrilview3t64 libqt5dbus5t64
vlc-plugin-access-extra libqt5network5t64 vlc-plugin-skins2
qml-module-qtqml-models2 libqt5opengl5t64 vlc-plugin-video-splitter
libgimp2.0t64 libswresample4 imagemagick-6-common
qml-module-qt-labs-qmlmodels fig2dev vlc-plugin-video-output
libqt5sql5-sqlite libqt5webenginecore5 libqt5qmlmodels5 7zip libavformat60
gstreamer1.0-plugins-bad konsole-kpart mupdf-tools libglut3.12
qml-module-qtquick2 gdal-data libsrt1.5-openssl libgraphicsmagick-q16-3t64
libqt5qmlworkerscript5 libatrildocument3t64 libqt5sql5-mysql libvlc-bin
libmbedx509-1t64 libqt5core5t64 qml-module-qtqml vlc-plugin-base
vlc-plugin-visualization qml-module-qtquick-particles2 libavfilter9
libmagickwand-6.q16-7t64
Learn more about Ubuntu Pro at https://ubuntu.com/pro
The following upgrades have been deferred due to phasing:
libegl-mesa0 libegl1-mesa-dev libgbm1 libgl1-mesa-dri libglx-mesa0 mesa-libgallium mesa-va-drivers
mesa-vdpau-drivers mesa-vulkan-drivers thermald
The following packages have been kept back:
ubuntustudio-audio-core
0 upgraded, 0 newly installed, 0 to remove and 11 not upgraded.
N: Some packages may have been kept back due to phasing.
Thanks. What’s the output from apt-cache policy ubuntustudio-audio-core and sudo apt install ubuntustudio-audio-core?
apt-cache policy ubuntustudio-audio-core
ubuntustudio-audio-core:
Installed: 0.266.3
Candidate: 24.04.22
Version table:
24.04.22 500
500 http://archive.ubuntu.com/ubuntu noble/universe amd64 Packages
\*\*\* 0.266.3 100
100 /var/lib/dpkg/status
sudo apt install ubuntustudio-audio-core
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages were automatically installed and are no longer required:
linux-headers-6.8.0-142 linux-headers-6.8.0-142-generic linuxaudio-new-session-manager midisnoop
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
pipewire-alsa pipewire-audio ubuntustudio-pipewire-config
The following packages will be REMOVED:
pulseaudio pulseaudio-module-gsettings
The following NEW packages will be installed:
pipewire-alsa pipewire-audio ubuntustudio-pipewire-config
The following packages will be upgraded:
ubuntustudio-audio-core
1 upgraded, 3 newly installed, 2 to remove and 10 not upgraded.
Need to get 82.0 kB of archives.
After this operation, 4348 kB disk space will be freed.
Do you want to continue? \[Y/n\]
Do I want to continue??
Yes you’ll want to continue. Pulseaudio is deprecated in favor of Pipewire, which it is wanting to install. You’re still stuck on the audio setup from 22.04 LTS. So just say “Y”.
After that, upgrading should work normally.
Thanks, that seems to have done the trick - upgrade completed. Thanks again,
Make sure to mark the comment that provides the solution.
This topic was automatically closed 18 hours after the last reply. New replies are no longer allowed.