Comment 5 for bug 1317164

Thanks for the update. IT was my error / I never believe, i would get a
reply.

On Thu, Sep 13, 2018 at 11:25 AM Balint Reczey <email address hidden>
wrote:

> ** Changed in: update-manager (Ubuntu)
> Status: In Progress => Fix Committed
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (1764746).
> https://bugs.launchpad.net/bugs/1317164
>
> Title:
> Show reason of TransactionFailed and let the user try again instead of
> crashing
>
> Status in update-manager package in Ubuntu:
> Fix Committed
>
> Bug description:
> [Impact]
>
> * Update-manager crashes when it tries to remove a package that was
> already removed since update-manager refreshed its cache. A typical
> scenario is when the list of available packages is updated, then
> update-manager pops up to notify the user about the updates. The user
> is not in front of the screen and unattended-upgrades installs the
> security updates and removes unused kernels making the list of updates
> shown to the user outdated. User clicks "Install now" and update-
> manager crashes.
>
> * The fix shows the reason of the transaction failure then asks
> offers the user to try again.
>
> [Test Case ]
> (with Bionic's package names)
>
> * Revert the patch for LP: #1791931 since it shadows the issue by
> filtering the package operations in advance.
>
> * Install older kernel packages, downgrade a few packages and mark the
> kernels autoremovable:
> $ sudo eatmydata apt install -y --allow-downgrades
> linux-headers-4.15.0-32 linux-headers-4.15.0-32-generic
> libpoppler73=0.62.0-2ubuntu2 poppler-utils=0.62.0-2ubuntu2 ; sudo
> /etc/kernel/postinst.d/apt-auto-removal ; sudo apt-mark auto
> linux-headers-4.15.0-32 linux-headers-4.15.0-32-generic
>
> * Start update-manager in a different terminal and _don't_ start the
> upgrade
>
> * Remove kernel packages behind u-m's back:
> $ sudo eatmydata apt remove -y linux-headers-4.15.0-32
>
> * Start the update on update-manager's GUI and observe it not
> crashing with the fixed version but showing the reason of the update
> failing and offering trying it again.
>
> [Regression Potential]
>
> * Inaccurate exception handling could shadow other problems.
>
> [Original bug text]
>
> On errors.ubuntu.com there are multiple crashes reported about update-
> manager that end in a Traceback like the following:
>
> aptdaemon.errors.TransactionFailed: Transaction failed: The package
> system is broken
> The following packages have unmet dependencies:
>
> rhythmbox-plugin-magnatune: Depends: rhythmbox (= 3.0.2-0ubuntu2) but
> 3.0.2-0ubuntu1 is installed
>
> Naturally, the package name varies. I don't believe these are actually
> crashes about update-manager or aptdaemon. Rather there is something
> wrong with the users package system. Subsequently, it'd be better if
> these were not reported to the error tracker and clogging up the bug
> lists.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1317164/+subscriptions
>

--
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