Public bug reported:

root@rami:~# sudo do-release-upgrade -d
Checking for a new Ubuntu release

= Welcome to Ubuntu 26.04 LTS 'Resolute Raccoon' =

The Ubuntu team is proud to announce Ubuntu 26.04 LTS 'Resolute
Raccoon'.

To see what's new in this release, visit:

  https://discourse.ubuntu.com/t/resolute-raccoon-release-notes

Ubuntu is a Linux distribution for your desktop or server. It is fast
and easy to install, it has regular releases, a tight selection of
excellent applications installed by default, and almost any other
software you can imagine available through the network.

We hope you enjoy Ubuntu.


== Feedback and helping ==

To help shape Ubuntu, look at the list of ways to participate at:

  https://documentation.ubuntu.com/project/community/contribute/

Your comments, bug reports, patches, and suggestions help ensure our
next release is the best release of Ubuntu ever. If you found a bug,
please read:

  https://help.ubuntu.com/community/ReportingBugs

Then report bugs using apport in Ubuntu. For example:

  ubuntu-bug linux

opens a bug report in Launchpad regarding the linux package.

If you have a question, or if you think you may have found a bug but aren't
sure, reach out on one of the communication channels. Matrix is the go-to
for instant chatting, while Discourse is the home to our support forum.
Otherwise, send an email to the Ubuntu Users mailing list:

  https://documentation.ubuntu.com/project/community/contributors/matrix/
  https://discourse.ubuntu.com/t/welcome-to-support-and-help
  https://lists.ubuntu.com/mailman/listinfo/ubuntu-users


== More information ==

You can find out more about Ubuntu on the Ubuntu website and in Ubuntu
Project documentation:

  https://ubuntu.com/
  https://documentation.ubuntu.com/project/

To sign up for future Ubuntu announcements, subscribe to Ubuntu's very
low-volume announcement list:

  https://lists.ubuntu.com/mailman/listinfo/ubuntu-announce


Continue [yN] y
Get:1 Upgrade tool signature [833 B]                                 
Get:2 Upgrade tool [950 kB]                                          
Es wurden 951 kB in 0 s geholt (0 B/s).                              
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherCore.py:237: 
Warning: W:Der Download wird als root und nicht Sandbox-geschützt durchgeführt, 
da auf die Datei »resolute.tar.gz.gpg« durch den Benutzer »_apt« nicht 
zugegriffen werden kann. - pkgAcquire::Run (13: Permission denied)
  result = fetcher.run()
authenticate 'resolute.tar.gz' against 'resolute.tar.gz.gpg' 
extracting 'resolute.tar.gz'
[screen is terminating]
root@rami:~# sudo apt remove pop-icon-theme
Paketlisten werden gelesen… Fertig
Abhängigkeitsbaum wird aufgebaut… Fertig
Statusinformationen werden eingelesen… Fertig
Die folgenden Pakete wurden automatisch installiert und werden nicht mehr 
benötigt:
  acpid adw-gtk3 appstream-data-pop appstream-data-pop-icons atril
  atril-common cosmic-app-library cosmic-bg cosmic-comp cosmic-edit
  cosmic-files cosmic-greeter cosmic-greeter-daemon cosmic-idle
  cosmic-launcher cosmic-notifications cosmic-panel cosmic-player
  cosmic-randr cosmic-screenshot cosmic-settings
  cosmic-settings-daemon cosmic-wallpapers cosmic-workspaces
  dvd+rw-tools fd-find fonts-mathjax fonts-open-sans gdal-data
  gdal-plugins gettext gir1.2-gtksource-4 gir1.2-peas-1.0
  gir1.2-pluma-1.0 greetd growisofs i965-va-driver:i386 imwheel
  intel-media-va-driver:i386 kylin-nm libaec0 libaom3:i386
  libapparmor1:i386 libarmadillo12 libarpack2t64
  libasound2-plugins:i386 libasound2t64:i386 libasyncns0:i386
  libatrildocument3t64 libatrilview3t64 libavcodec60:i386
  libavutil58:i386 libb2-1 libblosc1 libbrotli1:i386
  libcairo-gobject2:i386 libcairo2:i386 libcephfs2 libcfitsio10t64
  libcharls2 libcodec2-1.2:i386 libdatrie1:i386 libdav1d7:i386
  libdb5.3t64:i386 libdbus-1-3:i386 libddcutil4 libdeflate0:i386
  libdisplay-info1 libflac12t64:i386 libflatpak0 libfontconfig1:i386
  libfreeimageplus3 libfreetype6:i386 libfreexl1 libfribidi0:i386
  libfyba0t64 libgdal34t64 libgdcm3.0t64 libgdk-pixbuf-2.0-0:i386
  libgeos-c1t64 libgeos3.12.1t64 libgeotiff5 libglib2.0-0t64:i386
  libgnutls30t64:i386 libgomp1:i386 libgraphite2-3:i386 libgsm1:i386
  libgtksourceview-4-0 libgtksourceview-4-common libgxps2t64
  libharfbuzz0b:i386 libhdf4-0-alt libhdf5-103-1t64
  libhdf5-hl-100t64 libhogweed6t64:i386 libhwloc-plugins libhwloc15
  libigdgmm12:i386 libimath-3-1-29t64 libiniparser1
  libjack-jackd2-0:i386 libjbig0:i386 libjpeg-turbo8:i386
  libjpeg8:i386 libjs-mathjax libjxr-tools libjxr0t64 libkmlbase1t64
  libkmldom1t64 libkmlengine1t64 libkpathsea6 libkysdk-base
  libmalcontent-0-0 libmatekbd-common libmatekbd4
  libmatemixer-common libmatemixer0 libmp3lame0:i386
  libmpg123-0t64:i386 libmysqlclient21 libnetcdf19t64
  libnettle8t64:i386 libnm0:i386 libnuma1:i386 libodbcinst2
  libogdi4.1 libogg0:i386 libopencv-calib3d406t64
  libopencv-core406t64 libopencv-features2d406t64
  libopencv-flann406t64 libopencv-imgproc406t64
  libopencv-stitching406t64 libopenjp2-7:i386 libopus0:i386
  libostree-1-1 libp11-kit0:i386 libpango-1.0-0:i386
  libpangocairo-1.0-0:i386 libpangoft2-1.0-0:i386 libpeas-1.0-0
  libpeas-common libpixman-1-0:i386 libplayerctl2
  libpng16-16t64:i386 libpq5 libproj25 libpulse0:i386
  libqalculate-data libqalculate22t64 libqhull-r8.0
  libqt5-ukui-style1 libqt5sensors5 libqt6core6t64 libqt6dbus6t64
  libqt6gui6t64 libqt6network6t64 libqt6opengl6t64 libqt6qml6
  libqt6qmlmodels6 libqt6quick6 libqt6svg6 libqt6waylandclient6
  libqt6waylandcompositor6 libqt6waylandeglclienthwintegration6
  libqt6waylandeglcompositorhwintegration6 libqt6widgets6t64
  libqt6wlshellintegration6 librados2 librdmacm1t64 librsvg2-2:i386
  librsvg2-common:i386 librttopo1 libsamplerate0:i386 libseat1
  libsharpyuv0:i386 libshine3:i386 libsnappy1v5:i386
  libsndfile1:i386 libsocket++1 libsoxr0:i386 libspatialite8t64
  libspeex1:i386 libspeexdsp1:i386 libstb0t64 libsuperlu6
  libsvtav1enc1d1:i386 libswresample4:i386 libsynctex2 libsz2
  libtasn1-6:i386 libtbb12 libtbbbind-2-5 libtbbmalloc2
  libthai0:i386 libtheora0:i386 libtiff6:i386 libts0t64
  libtwolame0:i386 libukui-common0 libukwm-1-0t64 liburing2
  liburiparser1 libva-drm2:i386 libva-glx2:i386 libva-x11-2:i386
  libva2:i386 libvdpau1:i386 libvorbis0a:i386 libvorbisenc2:i386
  libvpx9:i386 libwebp7:i386 libwebpmux3:i386 libwmflite-0.2-7
  libx264-164:i386 libx265-199:i386 libxcb-render0:i386
  libxcb-xkb1:i386 libxerces-c3.2t64 libxfixes3:i386
  libxinerama1:i386 libxkbcommon-x11-0:i386 libxkbcommon0:i386
  libxrender1:i386 libxss1:i386 libxvidcore4:i386 libzvbi0t64:i386
  mesa-va-drivers:i386 mesa-vdpau-drivers:i386 mysql-common
  ocl-icd-libopencl1:i386 peony-common peony-set-wallpaper playerctl
  pluma pluma-common pop-fonts pop-launcher pop-sound-theme proj-bin
  proj-data qalc qt5-styles-ukui qt5-ukui-platformtheme qt5ct
  qt6-gtk-platformtheme qt6-qpa-plugins qt6-translations-l10n
  qt6-wayland qt6ct samba samba-ad-provision samba-vfs-modules
  tdb-tools ubuntukylin-wallpapers ubuntukylin-wallpapers-noble
  ukui-media-common ukui-menu ukui-notebook ukui-notification-daemon
  ukui-settings-daemon-common ukui-sidebar ukui-window-switch
  ukwm-common unixodbc-common va-driver-all:i386
  vdpau-driver-all:i386 xdg-desktop-portal-cosmic xwayland
Verwenden Sie »sudo apt autoremove«, um sie zu entfernen.
Die folgenden Pakete werden ENTFERNT:
  cosmic-applets cosmic-icons cosmic-session cosmic-store
  pop-icon-theme
0 aktualisiert, 0 neu installiert, 5 zu entfernen und 0 nicht aktualisiert.
Nach dieser Operation werden 185 MB Plattenplatz freigegeben.
Möchten Sie fortfahren? [J/n] j
(Lese Datenbank ... 444916 Dateien und Verzeichnisse sind derzeit installiert.)
Entfernen von cosmic-session (1.0.8-1ubuntu1) ...
Entfernen von cosmic-applets (1.0.8-1ubuntu1) ...
Entfernen von cosmic-store (1.0.8-1ubuntu1) ...
Entfernen von cosmic-icons (1.0.9-1ubuntu1) ...
Entfernen von pop-icon-theme (3.5.1ubuntu1) ...
Trigger für desktop-file-utils (0.27-2build1) werden verarbeitet ...
Trigger für hicolor-icon-theme (0.17-2) werden verarbeitet ...
Trigger für gnome-menus (3.36.0-1.1ubuntu3) werden verarbeitet ...
Trigger für libglib2.0-0t64:amd64 (2.80.0-6ubuntu3.8) werden verarbeitet ...
Trigger für libglib2.0-0t64:i386 (2.80.0-6ubuntu3.8) werden verarbeitet ...
Trigger für bamfdaemon (0.5.6+22.04.20220217-0ubuntu5) werden verarbeitet ...
Rebuilding /usr/share/applications/bamf-2.index...
root@rami:~# sudo do-release-upgrade -d
Checking for a new Ubuntu release

= Welcome to Ubuntu 26.04 LTS 'Resolute Raccoon' =

The Ubuntu team is proud to announce Ubuntu 26.04 LTS 'Resolute
Raccoon'.

To see what's new in this release, visit:

  https://discourse.ubuntu.com/t/resolute-raccoon-release-notes

Ubuntu is a Linux distribution for your desktop or server. It is fast
and easy to install, it has regular releases, a tight selection of
excellent applications installed by default, and almost any other
software you can imagine available through the network.

We hope you enjoy Ubuntu.


== Feedback and helping ==

To help shape Ubuntu, look at the list of ways to participate at:

  https://documentation.ubuntu.com/project/community/contribute/

Your comments, bug reports, patches, and suggestions help ensure our
next release is the best release of Ubuntu ever. If you found a bug,
please read:

  https://help.ubuntu.com/community/ReportingBugs

Then report bugs using apport in Ubuntu. For example:

  ubuntu-bug linux

opens a bug report in Launchpad regarding the linux package.

If you have a question, or if you think you may have found a bug but aren't
sure, reach out on one of the communication channels. Matrix is the go-to
for instant chatting, while Discourse is the home to our support forum.
Otherwise, send an email to the Ubuntu Users mailing list:

  https://documentation.ubuntu.com/project/community/contributors/matrix/
  https://discourse.ubuntu.com/t/welcome-to-support-and-help
  https://lists.ubuntu.com/mailman/listinfo/ubuntu-users


== More information ==

You can find out more about Ubuntu on the Ubuntu website and in Ubuntu
Project documentation:

  https://ubuntu.com/
  https://documentation.ubuntu.com/project/

To sign up for future Ubuntu announcements, subscribe to Ubuntu's very
low-volume announcement list:

  https://lists.ubuntu.com/mailman/listinfo/ubuntu-announce


Continue [yN] y
Get:1 Upgrade tool signature [833 B]                                 
Get:2 Upgrade tool [950 kB]                                          
Es wurden 951 kB in 0 s geholt (0 B/s).                              
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherCore.py:237: 
Warning: W:Der Download wird als root und nicht Sandbox-geschützt durchgeführt, 
da auf die Datei »resolute.tar.gz.gpg« durch den Benutzer »_apt« nicht 
zugegriffen werden kann. - pkgAcquire::Run (13: Permission denied)
  result = fetcher.run()
authenticate 'resolute.tar.gz' against 'resolute.tar.gz.gpg' 
extracting 'resolute.tar.gz'
[screen is terminating]

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: ubuntu-release-upgrader-core 1:24.04.28
ProcVersionSignature: Ubuntu 6.8.0-111.111-generic 6.8.12
Uname: Linux 6.8.0-111-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
CrashReports: 640:1000:114:90061:2026-05-03 14:50:29.229151250 +0000:2026-05-03 
14:50:29.228151211 +0000:/var/crash/_usr_bin_blueman-applet.1000.crash
CurrentDesktop: LXQt
Date: Sat May  9 16:38:09 2026
InstallationDate: Installed on 2026-03-14 (56 days ago)
InstallationMedia: Ubuntu-Server 24.04.4 LTS "Noble Numbat" - Release amd64 
(20260210)
PackageArchitecture: all
ProcEnviron:
 LANG=de_DE.UTF-8
 LANGUAGE=
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to noble on 2026-05-09 (0 days ago)

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade noble

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2152095

Title:
  upgrade from ubuntu server 24 LTS to ubuntu server 26 LTS failed

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2152095/+subscriptions


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