[Bug 1815494] Re: May remove autoremovable non-kernel packages matching pattern from APT::VersionedKernelPackages

[Launchpad Bug Tracker]

This bug was fixed in the package unattended-upgrades - 1.10ubuntu1

---------------
unattended-upgrades (1.10ubuntu1) disco; urgency=medium

  * Use defaults in unattended-upgrades.service when the APT configuration is
    broken. (LP: #1815189)
  * test/test_blacklisted_wrong_origin.py: Fix and enable test
  * Clear cache when autoremoval fails (LP: #1779157)
  * Find autoremovable kernel packages using the patterns in APT's way
    (LP: #1815494)
  * debian/rules: clean frontend locks left by tests before building source

 -- Balint Reczey <rbalint at ubuntu.com>  Mon, 18 Feb 2019 17:26:05 +0100

** Changed in: unattended-upgrades (Ubuntu)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1815494

Title:
  May remove autoremovable non-kernel packages matching pattern from
  APT::VersionedKernelPackages

Status in unattended-upgrades package in Ubuntu:
  Fix Released
Status in update-manager package in Ubuntu:
  New

Bug description:
  Unattended-upgrades and Update Manager use the patterns from the
  APT::VersionedKernelPackages list directly for finding kernel packages
  to remove while APT uses patterns by attaching version and flavor to
  them.

  As a result in APT's script ".*-modules" becomes
  "^.*-modules-4\.15\.0-45-generic$":

  ...
          for package in $(apt-config dump --no-empty --format '%v%n' 'APT::VersionedKernelPackages'); do
                  for kernel in $kernels; do
                          echo "   \"^${package}-${kernel}$\";"
  		done
  ...

  In unattended-upgrades and update-manager ".*-modules" is used
  directly for matching and may false  identify autoremovable packages
  as kernel-related ones and remove them (of just offer the removal in
  case of update-manager):

  ...
  Removing unused kernel packages: extra-cmake-modules
  marking extra-cmake-modules for removal
  (Reading database ... 31149 files and directories currently installed.)
  Removing extra-cmake-modules (5.44.0-0ubuntu1) ...
  Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
  Packages that were successfully auto-removed: extra-cmake-modules
  ...

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