[Bug 1779657] [NEW] apt autoremove not removing old kernels

[Vasya Pupkin]

Public bug reported:

I noticed that apt autoremove stopped removing old kernels recently.
Currently I have 6 installed and apt autoremove does not try to remove
old ones:

$ sudo apt autoremove --purge 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

In /etc/apt/apt.conf.d/01autoremove-kernels it is said to only keep last
three versions:

# list of different kernel versions:
4.15.0-24.26~16.04.1
4.15.0-23.25~16.04.1
4.15.0-22.24~16.04.1
4.15.0-15.16~16.04.1
4.13.0-45.50~16.04.1
4.13.0-43.48~16.04.1
# Installing kernel: 4.13.0-45.50~16.04.1 (4.13.0-45-generic)
# Running kernel: 4.15.0-23.25~16.04.1 (4.15.0-23-generic)
# Last kernel: 4.15.0-24.26~16.04.1
# Previous kernel: 4.15.0-23.25~16.04.1
# Kernel versions list to keep:
4.13.0-45.50~16.04.1
4.15.0-23.25~16.04.1
4.15.0-24.26~16.04.1
# Kernel packages (version part) to protect:
4\.13\.0-45-generic
4\.15\.0-23-generic
4\.15\.0-24-generic

It was working fine previously and I didn't change anything that could
break this functionality.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: apt 1.2.26
ProcVersionSignature: Ubuntu 4.15.0-24.26~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-24-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Jul  2 14:12:03 2018
InstallationDate: Installed on 2018-01-19 (164 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
SourcePackage: apt
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: apt (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

** Summary changed:

- apt autoremove not removing old 4.15 kernels
+ apt autoremove not removing old kernels

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https://bugs.launchpad.net/bugs/1779657

Title:
  apt autoremove not removing old kernels

Status in apt package in Ubuntu:
  New

Bug description:
  I noticed that apt autoremove stopped removing old kernels recently.
  Currently I have 6 installed and apt autoremove does not try to remove
  old ones:

  $ sudo apt autoremove --purge 
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

  In /etc/apt/apt.conf.d/01autoremove-kernels it is said to only keep
  last three versions:

  # list of different kernel versions:
  4.15.0-24.26~16.04.1
  4.15.0-23.25~16.04.1
  4.15.0-22.24~16.04.1
  4.15.0-15.16~16.04.1
  4.13.0-45.50~16.04.1
  4.13.0-43.48~16.04.1
  # Installing kernel: 4.13.0-45.50~16.04.1 (4.13.0-45-generic)
  # Running kernel: 4.15.0-23.25~16.04.1 (4.15.0-23-generic)
  # Last kernel: 4.15.0-24.26~16.04.1
  # Previous kernel: 4.15.0-23.25~16.04.1
  # Kernel versions list to keep:
  4.13.0-45.50~16.04.1
  4.15.0-23.25~16.04.1
  4.15.0-24.26~16.04.1
  # Kernel packages (version part) to protect:
  4\.13\.0-45-generic
  4\.15\.0-23-generic
  4\.15\.0-24-generic

  It was working fine previously and I didn't change anything that could
  break this functionality.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: apt 1.2.26
  ProcVersionSignature: Ubuntu 4.15.0-24.26~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-24-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Jul  2 14:12:03 2018
  InstallationDate: Installed on 2018-01-19 (164 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  SourcePackage: apt
  UpgradeStatus: No upgrade log present (probably fresh install)

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