For upgrades from oracular -> plucky, I am not sure this is just about
missing dependencies.
On a fresh Kubuntu 24.10 installation, I initially ran this to confirm
the issue:
ubuntu@ubuntu:~$ do-release-upgrade -d -m desktop -f DistUpgradeViewKDE
Checking for a new Ubuntu release
localuser:root being added to access control list
Checking for a new Ubuntu release
kde
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even
though it was found.
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root'
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherCore.py:237:
Warning: W:Download is performed unsandboxed as root as file
'plucky.tar.gz.gpg' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13:
Permission denied)
result = fetcher.run()
authenticate 'plucky.tar.gz' against 'plucky.tar.gz.gpg'
extracting 'plucky.tar.gz'
can't load DistUpgradeViewKDE (No module named 'PyQt6')
can't load DistUpgradeViewGtk3 (Namespace Vte not available)
can't load DistUpgradeViewKDE (No module named 'PyQt6')
[ ... ]
So, the upgrade continues just fine, but not with the GUI frontend. So,
then I tried installing missing dependencies (which have been added for
plucky):
ubuntu@ubuntu:~$ cat log
The following package was automatically installed and is no longer required:
libkf5networkmanagerqt6
Use 'sudo apt autoremove' to remove it.
Installing:
pyqt6-dev-tools python3-pyqt6 python3-pyqt6.qtquick
Installing dependencies:
libqt6test6 python3-pyqt6.qtqml python3-pyqt6.sip
Summary:
Upgrading: 0, Installing: 6, Removing: 0, Not Upgrading: 0
Download size: 3,530 kB
Space needed: 21.1 MB / 21.7 GB available
[ ... ]
Then, I try the upgrade again, and see these errors instead in the
terminal:
ubuntu@ubuntu:~$ do-release-upgrade -d -m desktop -f DistUpgradeViewKDE
Checking for a new Ubuntu release
localuser:root being added to access control list
Checking for a new Ubuntu release
kde
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even
though it was found.
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root'
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherCore.py:237:
Warning: W:Download is performed unsandboxed as root as file
'plucky.tar.gz.gpg' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13:
Permission denied)
result = fetcher.run()
authenticate 'plucky.tar.gz' against 'plucky.tar.gz.gpg'
extracting 'plucky.tar.gz'
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even
though it was found.
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
exitMainLoopMidFlight
On the GUI side of things, the main window never appears. I *do* get
intermittent pop-ups, e.g. asking if I want to continue, and informing
me about the screen lock being disabled. But, the *main* GUI window,
showing progress etc., never appears.
** Changed in: ubuntu-release-upgrader (Ubuntu Noble)
Status: New => Incomplete
** Changed in: ubuntu-release-upgrader (Ubuntu Oracular)
Status: In Progress => Incomplete
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https://bugs.launchpad.net/bugs/2095535
Title:
ubuntu-release-upgrader Qt interface Qt6 incompatibility
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