[Bug 1067106] Re: possible to run out of space on /boot partition when installed using auto recipe & full-disk-encryption

[mark johnson]

This script gets a list of all linux-image-* that have added files to
/boot except for the latest and (if different) currently running kernel,
them removes the rest.

If this was part of the post-install script for kernel packages, then
you'd only have 2 kernels installed at once, and /boot would never fill
up.

https://gist.github.com/marxjohnson/5f0f0607255951ee0e7a

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https://bugs.launchpad.net/bugs/1067106

Title:
  possible to run out of space on /boot partition when installed using
  auto recipe & full-disk-encryption

Status in “partman-auto-crypto” package in Ubuntu:
  Confirmed
Status in “partman-auto-crypto” source package in Quantal:
  Won't Fix
Status in “partman-auto-crypto” source package in Saucy:
  Confirmed

Bug description:
  When choosing full disk encryption in the quantal version of Ubiquity,
  the resulting /boot partition seems small.

  In my test installation /boot came to 228MB.

  Assuming that each kernel+initrd comes to about 30MB, that doesn't
  leave much space for old kernels/initrds as kernel upgrades pile-up.

  Many users do not know how to clear old kernels. A full /boot will
  mean that no further apt transactions can occur until older kernels
  are removed and the newer kernel installation is completed.  Users
  will then be missing out on security updates, hardware enablements,
  and installing new packages.

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