[Bug 1357093] Re: Kernels not autoremoving, causing out of space error on LVM or Encrypted installation or on any installation, when /boot partition gets full

[Balint Reczey]

On Mon, Apr 23, 2018 at 5:48 PM, luca moscato <luca.moscato at gmail.com> wrote:
> Sorry guys to bother you, I'm the reporter of
> https://bugs.launchpad.net/ubuntu/+bug/1744045

Thank you for reporting bugs!

>
> Having this bug fixed exactly what does it means on Ubuntu 16.04 and on the upcoming 18.04?

Unattended-upgrades and update-manager will remove old unused kernels
with the default configuration.
This is already happening in 18.04 and will be back-ported to 16.04.

> With a clean installation (on an encrypted disk) the boot partition will be removed automatically? Or do I have to upgrade manually /etc/apt/apt.conf.d/50unattended-upgrades
> uncommenting this parameter?
> //Unattended-Upgrade::Remove-Unused-Dependencies "true";

No, the /boot partition will be kept, but unused old kernel files will
be cleaned up. Without changing the configuration files from the
shipped default values.

> I'm asking since some of my colleagues doesn't use command line (so they
> don't use autoremove) and they rely on Software update Application.

I hope they will be pleased to see that obsolete kernels are removed
without starting terminals. :-)

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

Title:
  Kernels not autoremoving, causing out of space error on LVM or
  Encrypted installation or on any installation, when /boot partition
  gets full

Status in unattended-upgrades package in Ubuntu:
  Fix Released

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.

  For workaround and sytem repair, see
  https://help.ubuntu.com/community/RemoveOldKernels

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