[Bug 923876] Re: FR: Limit and clean-up kernel images and headers automatically in LTS

[Daniel Hartwig]

APT has good reason to not autoremove kernels, why you want to break
that?

You want *some* process to reap old kernels, ok, but that does not
mean that the core package manager should be that process.  The
selection of which kernels to clean up is domain-specific.  Determine
such a list external to apt and use apt-get remove (not autoremove) to
dispose.

At the very least, if you insist on using markauto + autoremove, do
not make this the default.  Your external process should invoke apt
with a custom configuration where APT::NeverAutoRemove does not
contain the entries blocking the desired autoremoval.  Use APT_CONFIG
envvar and/or apt-get -c.

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https://bugs.launchpad.net/bugs/923876

Title:
  FR: Limit and clean-up kernel images and headers automatically in LTS

Status in “apt” package in Ubuntu:
  Confirmed

Bug description:
  Question #186146 is one among multiple where user unintentionally collects multiple kernel images in particular with LTS. There is no hint from relevant package management application GUIs which advise to clean up those images. With future LTS support of five years the issue presumable will extend.
  Expected.
  After installation of a newer kernel image ask the user if previous kernel images should be removed.
  Checkbox: yes - no
  If yes, offer a list of installed kernel images, don't list the one booted. Advise to keep at least the last functional one.
  Also remove -headers.

  Perhaps an additional consideration for the blueprint.
  https://blueprints.launchpad.net/ubuntu/+spec/foundations-p-lts-upgrades

  There is a new Quantal blueprint regarding the subject.
  https://blueprints.launchpad.net/ubuntu/+spec/desktop-q-clean-old-kernels

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