python3-distupgrade contains symlink to externally owned directory

Bug #1485093 reported by Barry Warsaw
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubuntu-release-upgrader (Ubuntu)
Fix Released
Won't Fix

Bug Description

python3-distupgrade contains the symlink /usr/lib/python3/dist-packages/DistUpgrade/NvidiaDetector which symlinks to ../NvidiaDetector. However /usr/lib/python3/dist-packages/NvidiaDetector is owned by ubuntu-drivers-common.

This causes a problem with at least the pex DEP-8 tests because in (and clean adt qemu images), python3-distupgrade is installed but not ubuntu-drivers-common. Thus when pex invokes pkg_resources' get_resource_stream() you get a FileNotFound exception on the former, i.e. dead, symlink.

Maybe python3-distupgrade should Depend on ubuntu-drivers-common, or maybe the symlink itself should be owned by the latter package. I don't think the former should just leave a dangling symlink on the system.

Tags: wily

Related branches

Revision history for this message
Barry Warsaw (barry) wrote :
tags: added: wily
Changed in ubuntu-release-upgrader (Ubuntu Wily):
status: New → Won't Fix
Changed in ubuntu-release-upgrader (Ubuntu):
status: New → Triaged
importance: Undecided → Medium
no longer affects: ubuntu-release-upgrader
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package ubuntu-release-upgrader - 1:16.04.1

ubuntu-release-upgrader (1:16.04.1) xenial; urgency=medium

  [ Barry Warsaw ]
  * Don't try to import janitor and NvidiaDetector in a package relative
    to this one, to avoid the possibility of dangling symlinks when the
    packages actually containing these modules is not installed.
    (LP: #1485093)
  * debian/python3-distupgrade.links: Removed.

  [ Brian Murray ]
  * DistUpgrade/{EOL,}ReleaseAnnouncement,
    - updated for 15.10->16.04
  * DistUpgrade/ add in a quirk to ensure that a linux
    metapackage is installed after the release upgrade. (LP: #1509305)

  [ Michael Vogt ]
  * DistUpgrade/ improve linux metapackage check and add
    a test for it.

 -- Brian Murray <email address hidden> Tue, 27 Oct 2015 13:45:19 -0700

Changed in ubuntu-release-upgrader (Ubuntu):
status: Triaged → Fix Released
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