[Bug 1698159] Re: linux-cloud-tools version specific packages are being removed by unattended-upgrade's Remove-Unused-Dependencies

[Ian Gordon]

Hi,

I installed apt 1.2.28 from proposed on a xenial server with the linux-
cloud-tools packages installed and it added linux-cloud-tools to the
VersionedKernelPackages section of /etc/apt/apt.conf.d/01autoremove.

It did not add linux-cloud-tools lines to the 01autoremove-kernels file.
This did not occur until I upgraded the kernel to 4.4.0-137. After doing
this the 01autoremove-kernels contains:

  "^linux-cloud-tools-4\.4\.0-134-generic$";
  "^linux-cloud-tools-4\.4\.0-137-generic$";

I confirmed that linux-cloud-tools package was also not auto removed.

So the new version of apt fixes the problem.

Regards,

Ian.


** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial

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https://bugs.launchpad.net/bugs/1698159

Title:
  linux-cloud-tools version specific packages are being removed by
  unattended-upgrade's  Remove-Unused-Dependencies

Status in apt package in Ubuntu:
  Fix Released
Status in unattended-upgrades package in Ubuntu:
  Fix Released
Status in apt source package in Trusty:
  Triaged
Status in unattended-upgrades source package in Trusty:
  New
Status in apt source package in Xenial:
  Fix Committed
Status in unattended-upgrades source package in Xenial:
  New
Status in apt source package in Bionic:
  Fix Released
Status in unattended-upgrades source package in Bionic:
  Fix Released

Bug description:
  [Impact]
  When running kernel version 4.4.0-78 (for example) and the unattended-upgrade packages installs a new kernel 4.4.0-79 (for example) the linux-cloud-tools-4.4.0-78 and linux-cloud-tools-4.4.0-78-generic packages are removed by the Remove-Unused-Dependencies rule, because unlike "normal" kernel packages they are not excluded by /etc/apt/apt.conf.d/01autoremove-kernels.

  The linux-cloud-tools package has the hyper-v integration services
  daemons in it, so it's deletion leaves some of the integration not
  working.

  Could /etc/apt/apt.conf.d/01autoremove-kernels be updated so other
  hyper-v users aren't caught out by this?

  Thanks,

  Ian.

  [Test case]

  Make sure that linux-cloud-tools for protected kernels are listed in
  APT::NeverAutoRemove, for example, on cosmic:

     "^linux-cloud-tools-4\.17\.0-9-generic$";
     "^linux-cloud-tools-4\.18\.0-7-generic$";

  Those are in 01autoremove-kernels

  [Regression Potential]
  some linux-cloud-tools will linger around, so it takes more space.

  [Other info]

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: unattended-upgrades 0.90ubuntu0.6
  ProcVersionSignature: Ubuntu 4.4.0-79.100-generic 4.4.67
  Uname: Linux 4.4.0-79-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.6
  Architecture: amd64
  Date: Thu Jun 15 15:27:35 2017
  InstallationDate: Installed on 2016-04-25 (415 days ago)
  InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3)
  PackageArchitecture: all
  SourcePackage: unattended-upgrades
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.apt.apt.conf.d.10periodic: [modified]
  modified.conffile..etc.update-motd.d.90-updates-available: [deleted]
  modified.conffile..etc.update-motd.d.98-fsck-at-reboot: [deleted]
  modified.conffile..etc.update-motd.d.98-reboot-required: [deleted]
  mtime.conffile..etc.apt.apt.conf.d.10periodic: 2016-04-25T16:28:36.640000

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