[Bug 1054927] [NEW] Autoupdater fills /boot and crashes because old kernel images are never removed

[Henri Sivonen]

Public bug reported:

Steps to reproduce:
1) Install Ubuntu with the default LVM encryption recipe
2) Set Ubuntu to automatically install security updates on the background
3) Use ubuntu for 5 months

Actual results:
The system automatically installs security updates for the kernel under /boot. It's never removes previous kernel images. After about five months, the /boot partition created by the install recipe (i.e. sized according to the judgment of Ubuntu developers—not me) fills up and the unattended updater crashes during the next kernel update.

Expected results:
Expected the unattended updater to leave the nearest kernel and the previous one on /boot and to automatically remove older kernel images. Expected the system installer to set up /boot such that it never runs out of space when the system updater operates automatically.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.9
ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
Uname: Linux 3.2.0-31-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
Date: Sun Sep 23 12:53:52 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise running-unity

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https://bugs.launchpad.net/bugs/1054927

Title:
  Autoupdater fills /boot and crashes because old kernel images are
  never removed

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  Steps to reproduce:
  1) Install Ubuntu with the default LVM encryption recipe
  2) Set Ubuntu to automatically install security updates on the background
  3) Use ubuntu for 5 months

  Actual results:
  The system automatically installs security updates for the kernel under /boot. It's never removes previous kernel images. After about five months, the /boot partition created by the install recipe (i.e. sized according to the judgment of Ubuntu developers—not me) fills up and the unattended updater crashes during the next kernel update.

  Expected results:
  Expected the unattended updater to leave the nearest kernel and the previous one on /boot and to automatically remove older kernel images. Expected the system installer to set up /boot such that it never runs out of space when the system updater operates automatically.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.9
  ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
  Uname: Linux 3.2.0-31-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu13
  Architecture: amd64
  Date: Sun Sep 23 12:53:52 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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