[Bug 1275376] Re: apt-get autoremove should leave (n-1)th kernel

[Steve Langasek]

The code here is configured to always leave exactly two kernels
installed, with the running kernel as one of them.  What were the kernel
packages that you had installed before and after this autoremoval?

** Changed in: apt (Ubuntu)
       Status: New => Incomplete

** Changed in: apt (Ubuntu)
     Assignee: (unassigned) => Steve Langasek (vorlon)

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https://bugs.launchpad.net/bugs/1275376

Title:
  apt-get autoremove should leave (n-1)th kernel

Status in “apt” package in Ubuntu:
  Incomplete

Bug description:
  Running autoremove tonight on a 13.10 machine being upgraded to 14.04,
  I was informed by apt-get that I could delete no longer needed kernel
  packages with autoremove.  When I did so I was left with just the
  current kernel.  I suggest that autoremove should always leave the
  (n-1)th kernel behind.  Otherwise users cannot revert to the previous
  kernel if something goes wrong.  I believe this has been the default
  behavior for "apt-get autoremove" for some time now.

  You could argue that if a user is able to run autoremove, then there
  is no point to keeping the previous kernel image.  I disagree.  Users
  may not test out all their connected devices before running autoremove
  and then discover they cannot use a camera or audio device.

  Release: 14.04 (Trusty)
  Package: apt, Version: 0.9.14.1ubuntu2  (and earlier)
  Expected: "apt-get autoremove" would leave current and prior kernel images installed
  Actual: only current kernel image remains

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