[Bug 1515513] Re: /boot/initrd.img-*.old-dkms files left behind

[Łukasz Zemczak]

Hello Robin, or anyone else affected,

Accepted dkms into zesty-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/dkms/2.3-3ubuntu1.2 in
a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-zesty to verification-done-zesty. If it does not fix
the bug for you, please add a comment stating that, and change the tag
to verification-failed-zesty. In either case, details of your testing
will help us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Tags removed: verification-failed-zesty
** Tags added: verification-needed-zesty

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

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https://bugs.launchpad.net/bugs/1515513

Title:
  /boot/initrd.img-*.old-dkms files left behind

Status in dkms package in Ubuntu:
  In Progress
Status in initramfs-tools package in Ubuntu:
  Confirmed
Status in dkms source package in Xenial:
  Fix Committed
Status in initramfs-tools source package in Xenial:
  New
Status in dkms source package in Zesty:
  Fix Committed
Status in initramfs-tools source package in Zesty:
  New
Status in dkms package in Debian:
  New

Bug description:
  [Impact]
  If a dkms package is installed which has REMAKE_INITRD or the same setting has be manually configured by a user then when a kernel is removed its possible for an ".old-dkms" file to be left in /boot with no associated kernel.

  [Test Case]
  On a system with two old kernels and one new kernel available in -updates:
  1) install r8168-dkms
  2) install the dkms module for the old kernel e.g. 'sudo dkms install -m r8168 -v 8.041.00 -k 4.4.0-31-generic'
  3) upgrade your kernel e.g. "sudo apt install linux-image-generic'
  4) sudo apt autoremove
  5) observe something like "initrd.img-4.4.0-31-generic.old-dkms" in /boot without a corresponding "initrd.img-4.4.0-31-generic"

  With the version of dkms in -proposed, the .old-dkms file will be
  removed when the kernel is auto removed.

  [Regression Potential]
  Somebody out there might expect the .old-dkms file to be kept, but that seems like an odd expectation.

  One notices *.old-dkms files being left behind still sitting on the
  disk after purging the related kernel. This can cause /boot to become
  full, and when it gets really bad, even sudo apt-get autoremove won't
  fix the problem - only deleting the old-dkms files manually solves the
  problem.

  Note:  Filling up the /boot partition causes updates to fail.

  ProblemType: BugDistroRelease: Ubuntu 15.04
  Package: dkms 2.2.0.3-2ubuntu3.3
  ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
  Uname: Linux 3.19.0-28-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.7
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Thu Nov 12 08:17:10 2015
  InstallationDate: Installed on 2015-05-05 (190 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  PackageArchitecture: allSourcePackage: dkms
  UpgradeStatus: No upgrade log present (probably fresh install)

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