missing dependency on python3-dbus

Status changed to 'Confirmed' because the bug affects multiple users.

I had this problem on a WSL 2 instance of 20.04 when attempting to upgrade to 22.04.

I cured the problem by doing the following:

apt reinstall python3-dbus

This bug was fixed in the package ubuntu-release-upgrader - 1:22.10.2

---------------
ubuntu-release-upgrader (1:22.10.2) kinetic; urgency=medium

  * DistUpgrade: Gracefully handle missing dbus module (LP: #1965568).
  * Run pre-build.sh: updating mirrors, demotions, and translations.

 -- Nick Rosbrook <email address hidden> Mon, 09 May 2022 12:16:49 -0400

Hello Zhang, or anyone else affected,

Accepted ubuntu-release-upgrader into jammy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/ubuntu-release-upgrader/1:22.04.11 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-jammy to verification-done-jammy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-jammy. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

I have tested upgrade from Impish to Jammy using version 1:22.04.11 using the test plan above (and appending --proposed to do-release-upgrade), and I have verified this issue is fixed.

This bug was fixed in the package ubuntu-release-upgrader - 1:22.04.11

---------------
ubuntu-release-upgrader (1:22.04.11) jammy; urgency=medium

  [ William 'jawn-smith' Wilson ]
  * DistUpgrade/DistUpgradeQuirks.py: Remove section of netplan
    config that is installed by default on Raspberry Pi and
    causes netplan failures after upgrade to jammy (LP: #1970761)

  [ Nick Rosbrook ]
  * DistUpgrade: Gracefully handle missing dbus module (LP: #1965568).
  * DistUpgrade: Do not show lock screen error if XDG_SESSION_TYPE is
    tty (LP: #1973785).
  * DistUpgrade: Add deb2snap entry for snapd-desktop-integration (LP: #1975747).
  * Run pre-build.sh: updating mirrors, demotions, and translations.

 -- Nick Rosbrook <email address hidden> Thu, 26 May 2022 10:49:26 -0400

The verification of the Stable Release Update for ubuntu-release-upgrader has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.