/usr/bin/unattended-upgrade:apt_pkg.Error:/usr/bin/unattended-upgrade@1706:main:__init__:__init__:open

Bug #1737442 reported by errors.ubuntu.com bug bridge on 2017-12-10
12
This bug affects 1 person
Affects Status Importance Assigned to Milestone
unattended-upgrades (Ubuntu)
Undecided
Balint Reczey
Xenial
Undecided
Unassigned

Bug Description

[Impact]

 * Unattended-upgrades crashes when initializing the cache preventing security updates to be applied.
 * The fix prints an error message then exits

[Test Case]

 * Observe https://errors.ubuntu.com/problem/cb12eff1497c73b95a2a51f4213bc3f30f2ac4d5 not happening in fixed releases

[Regression Potential]

 * The fix is simply catching the error and exiting, there is little room for regressions. In the worst case u-u crashes differently when printing the error.

[Original Bug Text]

The Ubuntu Error Tracker has been receiving reports about a problem regarding unattended-upgrades. This problem was most recently seen with package version 0.98ubuntu1, the problem page at https://errors.ubuntu.com/problem/933de54e4841d617eb5c73ab02bb2d3be522a6ff contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

Balint Reczey (rbalint) wrote :

Various temporary problems with package lists can make u-u crash (typically in --download-only mode), but those can be handled printing an error and exiting.

Traceback (most recent call last):
  File "/usr/bin/unattended-upgrade", line 1706, in <module>
    main(options)
  File "/usr/bin/unattended-upgrade", line 1394, in main
    allowed_origins=allowed_origins)
  File "/usr/bin/unattended-upgrade", line 119, in __init__
    apt.Cache.__init__(self, rootdir=rootdir)
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 113, in __init__
    self.open(progress)
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 164, in open
    self._cache = apt_pkg.Cache(progress)
apt_pkg.Error: E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/cn.archive.ubuntu.com_ubuntu_dists_artful_universe_i18n_Translation-en, E:The package lists or status file could not be parsed or opened.

Changed in unattended-upgrades (Ubuntu):
status: New → In Progress
assignee: nobody → Balint Reczey (rbalint)
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package unattended-upgrades - 0.99ubuntu2

---------------
unattended-upgrades (0.99ubuntu2) bionic; urgency=medium

  * Run upgrade-between-snapshots only on amd64.
    The test exercises only unattented-upgrade's Python code and uses
    dependencies from the frozen Debian snapshot archive thus running
    it on all architectures would provide little benefit.

 -- Balint Reczey <email address hidden> Tue, 13 Feb 2018 11:41:20 +0700

Changed in unattended-upgrades (Ubuntu):
status: In Progress → Fix Released
Balint Reczey (rbalint) on 2018-11-30
description: updated

Hello errors.ubuntu.com, or anyone else affected,

Accepted unattended-upgrades into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/unattended-upgrades/1.1ubuntu1.18.04.7~16.04.0 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 and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. 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.

Changed in unattended-upgrades (Ubuntu Xenial):
status: New → Fix Committed
tags: added: verification-needed verification-needed-xenial
Łukasz Zemczak (sil2100) wrote :

Hello errors.ubuntu.com, or anyone else affected,

Accepted unattended-upgrades into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/unattended-upgrades/1.1ubuntu1.18.04.7~16.04.1 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 and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. 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.

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