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

[Mark Russell]

Kernel autoremoval helps, but does not cover the situation where you are
using unattended upgrades to push security fixes.  Unattended update
doesn't run apt-get autoremove.  Enabling grub to boot from LUKS would
cover all cases.

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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 they will get "stuck" using an old kernel, potentially missing
  out on security updates or hardware enablements.

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