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

[Brian Murray]

** Description changed:

+ [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: Bug
- DistroRelease: Ubuntu 15.04
+ 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: all
- SourcePackage: dkms
+ PackageArchitecture: allSourcePackage: dkms
  UpgradeStatus: No upgrade log present (probably fresh install)

** Also affects: initramfs-tools (Ubuntu Zesty)
   Importance: Undecided
       Status: New

** Also affects: dkms (Ubuntu Zesty)
   Importance: Undecided
       Status: New

** Also affects: initramfs-tools (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: dkms (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: dkms (Ubuntu Xenial)
       Status: New => In Progress

** Changed in: dkms (Ubuntu Zesty)
       Status: New => In Progress

** Changed in: dkms (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: dkms (Ubuntu Zesty)
   Importance: Undecided => High

** Changed in: dkms (Ubuntu Xenial)
     Assignee: (unassigned) => Brian Murray (brian-murray)

** Changed in: dkms (Ubuntu Zesty)
     Assignee: (unassigned) => Brian Murray (brian-murray)

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

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

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