[Bug 1678187] Re: dpkg fails to remove a linux-image-extra package, if /boot is about full

[Jarno Suni]

What triggers a postinst script when removing a linux-image-extra
package by dpkg?

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https://bugs.launchpad.net/bugs/1678187

Title:
  dpkg fails to remove a linux-image-extra package, if /boot is about
  full

Status in dpkg package in Ubuntu:
  New
Status in initramfs-tools package in Ubuntu:
  New

Bug description:
  "dpkg --purge" calls /etc/kernel/postinst.d/initramfs-tools when
  purging/removing a linux-image-extra package. That calls "update-
  initramfs -c" which needs significant amount of additional disk space
  in /boot temporarily. But there is no space left, if /boot is full.

  The fix could be to create the new initrg.img file in different
  partition before replacing the old one by it in update-initramfs. So
  the update-initramfs script should be fixed.

  Alternatively some should remove the respective /boot/initrd.img-<version> file before removing the linux-image-extra package. That could also be done by
  sudo update-initramfs -d -k <version>

  Related question: http://askubuntu.com/q/898499/21005

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: initramfs-tools 0.103ubuntu4.7
  ProcVersionSignature: Ubuntu 4.4.0-71.92~14.04.1-generic 4.4.49
  Uname: Linux 4.4.0-71-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.23
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Fri Mar 31 17:42:35 2017
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-09-21 (922 days ago)
  InstallationMedia: Ubuntu-Studio 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.1)
  PackageArchitecture: all
  SourcePackage: initramfs-tools
  UpgradeStatus: No upgrade log present (probably fresh install)

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