[Bug 1357093] Re: LVM or Encrypted install creates too small /boot partition

[Ian Weisser]

Ubiquity creates space for enough kernels. The system is not managing
that space later. Not ubiquity's fault.

These two issues together create the problem on a small /boot partition:
apt: apt-get remove/purge/autoremove is blocked by the (always-failing) kernel install (not enough space on device)
unattended-upgrade: 'autoremove' is disabled by default.

Adding both packages to the bug report. Removing ubiquity.

Workaround - How users can recover from the problem:
- You can use dpkg to manually remove older kernels until apt has enough space to work, or
- You can use dpkg --set selections to un-select the kernel packages for install, then run apt-get autoremove

Workaround - How users can prevent recurrence after successful recovery: 
- You can enable autoremoval in /etc/apt/apt.conf.d/50unattended-upgrades , or
- You can mark your wall calendar and manually run apt-get autoremove every few months

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https://bugs.launchpad.net/bugs/1357093

Title:
  LVM or Encrypted install creates too small /boot partition

Status in apt package in Ubuntu:
  Confirmed
Status in unattended-upgrades package in Ubuntu:
  New

Bug description:
  Currently if one chooses to use LVM or encrypted install, a /boot
  partition is created of 236Mb

  Once kernel updates start being released this partition soon fills
  until people are left unable to upgrade.

  While you and I might know that we need to watch partition space, many
  of the people we have installing think that a windows disk is a disk
  and not a partition, education is probably the key - but in the
  meantime support venues keep needing to deal with the fact the
  partition is too small and/or old kernels are not purged as new ones
  install.

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