[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]

*** This bug is a duplicate of bug 1675079 ***
https://bugs.launchpad.net/bugs/1675079

** This bug has been marked a duplicate of bug 1675079
   16.04 LTS Partition /boot fills up with Kernel images, gets underwear in a 
twist

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

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[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]

@kudalufi If apt-get does not remove the kernels they must have been set
o manually installed which prevents u-u and update-manager from removing
them, too. Please remove the ones set manually installed manually.

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

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[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

[Kurt Fitzner]

This is still broken, at least on my 18.04.  apt-get autoremove does not
touch old kernels.  What is the process for re-reporting this?

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

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[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

[luca moscato]

Many many many thanks :)

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

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

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[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

[luca moscato]

Sorry guys to bother you, I'm the reporter of
https://bugs.launchpad.net/ubuntu/+bug/1744045

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

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.

Thanks for understanding

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

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[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]

This is now fixed in bionic and is scheduled for backporting to stable
releases.

** No longer affects: unattended-upgrades

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

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[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

[Jussi Lind]

I'm not sure how average users should handle this. I'm a professional
software engineer and facing some serious dpkg issues when trying to
make my 16.04 LTS work again due to filled up /boot.

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

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[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

[mikewhatever]

Here is a good one:
https://ubuntuforums.org/showthread.php?t=2374043=13697015#post13697015.
The OP had, in total, 74 kernels, 65 headers and 93 extras = 232
packages that almost filled /, and gobbled up inodes. Don't know if it
is a record, but it's close.

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

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[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

[mikewhatever]

Recently, I had to remove 42 old kernels that accumulated over about 18
months on an old PC. It only took about 80 minutes. Clearly, old kernels
should be auto-purged by default, with an option to keep them available
for those that need it. As is, users have to manually run apt-get
autoremove, resort to script, or configure unattended upgrades, none of
which should ever be expected from regular users.

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

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[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

[Brian Murray]

** Tags added: full-boot

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

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[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

[iGadget]

Ben, I feel your pain and couldn't agree more. I'm under the impression
that this attitude is getting more common as Canonical focuses on server
and IoT. Where are the days where the 100 Papercuts
(https://wiki.ubuntu.com/One%20Hundred%20Papercuts) got a really high
priority? IMHO, this bug sure seems to qualify...

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

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[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

[Ben Norris]

This bug has just hosed a system I installed for my parents.  An
unattended-upgrader that breaks your system if you don't attend to it IS
broken.

Having known about this problem for many years, the least you could have
done is added a warning to the installer that choosing lvm or encryption
will make a system that breaks itself.

The idea that novice users can just run script workarounds is entirely 
unrealistic.
a) They don't know about the problem if they haven't been told (burying it deep 
in the manuals or text that whizzes by is not good enough)
b) from a security PoV they shouldn't be run anything they cut & paste in

The general attitude to a major showstopper that is causing a lot of
pain for novice users shown in this bug is frankly appalling and I'm
pretty much inclined to ditch Ubuntu because of it.

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

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[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

[Jarno Suni]

I wonder why fix to Bug #1439769 has not been released as SRU for 14.04
yet. The fix would make unattended-upgrade work better in removing extra
kernels in 14.04.

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

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[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

[Jarno Suni]

... and 'sudo apt-get autoremove' would work, too.

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

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Re: [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

[David Potter]

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

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[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

[Jarno Suni]

As for default settings for unattended-upgrade, it is interesting what
Canonical Foundations Team is going to do with Bug #1624644.

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

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[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

[Jarno Suni]

Hi David

One option is to install 16.04 or later and configure unattended-
upgrades as recommended in the document. I am afraid all the related
bugs will not be fixed in 14.04.

Fixing Bug #1460396 and Bug #291342 would also help users of Software
Updater even if unattended-upgrades is not used.

The changes you suggest have nothing to do with unattended-upgrade
(against which this bug is reported).

IIRC the default separate /boot size is 500MB in some newer release of
Ubuntu.

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

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[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

[David Potter]

Hi Jarno

I would suggest that most desktop users get notified by the updater that
there are updates and run the updater accordingly to apply them.  As
such, I think the unclogging activity needs to run  automatically as the
users that are using the default boot partition size almost certainly
have no interest in having to run the software themselves or even making
a decision about how many old kernels to keep. In fact I suggest that
there are a goodly number of users that wouldn't know what to do with an
old kernel anyway.

My suggestion would be that there should be a default number of kernels
to keep (2 or maybe 3 would be my vote) but have a configuration file
that would allow the number to be altered for those users that wanted to
change the default. In fact you could even use a 0 value to indicate
that the user does not want the un-clogging to happen automatically.

It seems like all the commands and scripts have been sorted out over
time and the work is really to apply them in an automated fashion. I do
recognise that, there may be a more elegant solution that might be
preferable though.  In which case that is going to be more work.

If we are talking about putting this in place to run automatically and
definitely removing the "out of space" issue with no effort on behalf of
the user, then I would be happy to contribute towards the bounty.  Can
you confirm that this would be the intention?

I don't think that the default size of the boot partition should be
ignored though.  Surely it's not going to break anyone's system to up
the size to 500Mb.  Whilst I'm not a developer, I can't believe it would
take much effort to increase the default size.

Thanks for your persistence and help moving this bug along Jarno.

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

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[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

[Jarno Suni]

The reason why 'apt-get autoremove' is stated there is that it is a
simple working way in 16.04 and later for most users, if your system is
not broken already. purge-old-kernels is included in some Ubuntu
package; consequently it is supported by Launchpad's bug reporting
system. But as said in the document, it is currently deprecated and its
bugs will likely not be fixed. It might still be useful for some users
in some cases.

If one wants to use unattended-upgrades manually, he/she could disable
it from being called automatically. One should avoid installing security
updates manually by Software Updater in 14.04, if one expects to use apt
/unattended-upgrades for removing kernels automatically.

I have developed some software that makes the un-clogging part easier;
link to related bountysource.com page is included in the document. Just
feel free to post a bounty and/or give some feedback about the interface
in the respective Launchpad page. I guess the software could be launched
automatically in case of kernel clog when it happens in interactive
session (or even in non-interactive session, if the software is made to
support completely non-interactive un-clogging).

If you install a kernel manually in command line by say
sudo apt-get install linux-image-4.4.0-87-generic
which kernel(s) that command should remove in turn in your opinion? Or could it 
be that the user who runs the command should take care of it? User possibly 
wants to keep some spare kernels, in case the one that is just installed is 
bad. Or a developer may want to keep some testing kernels etc.

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

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[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

[fksdlöfioenvdfsdji]

Just one quick comment that issue for me never got fixed, and i switched
to debian. and will finally hopefully find a way to stop getting
notified about comments on this thread.

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

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[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

[Andreas Lindhé]

I'm completely with Dave on this one.

Regarding jarnos comment #110:

> I see many people take time to complain, but I see none who is willing
to spend even 1$ to get an easier solution for poor Ubuntu users.

Is funding the problem here? Because if it is, please tell us. I'm sure
we can at least gather some funds, since this is such a prevalent issue
that clearly stirs a lot of people into motion.

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

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[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

[Mitch Singler]

Well said Dave!  It's hard for me to understand why smart people don't
understand this issue.  This required maintenance should not even be
required for expert users let alone the average user.  In over 30 years
in IT and multiple platforms I have never heard of this design
flaw/systems implementation being done on purpose. Perhaps someone can
explain the design purpose that creates this issue as I have not seen it
any where in these forums and bug reports.

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

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[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

[Dave Eckhardt]

jarnos,

The reason why I responded first/primarily about "apt-get autoremove"
and "purge-old-kernels" is that those are listed at the top of the page
and are the things that a regular-ish user could feel confident doing.

I do not feel that the idea of running unattended-upgrade from the
command line is likely to be helpful to many users.  Among other things,
that presumes that the user always gets in there before being prompted
by the automatic update GUI program (which, by the way, doesn't say "I
am going to install a kernel"; it says "I have 192 MB of security
updates that I would like you to approve", unless you dive into
details).

As for un-clogging, I did in fact read the "Safely Removing Old Kernels"
text.  What I wrote was "I personally can manually grub around and
remove kernels, so this is only annoying, not show-stopping, but I think
we have lots of evidence that it is show-stopping for some people".  I
continue to believe that.

I did not see a response from you to what I genuinely believe is the
single core issue:  anything (unattended-upgrades, GUI install widget,
apt, flying spaghetti monster) that installs a kernel without deleting a
kernel will eventually overflow /boot.

Then there is a second issue, which is that because a variety of things
have installed too many kernels on the machines of people who cannot be
expected to manually delete kernels, there should be some automatically-
run solution (perhaps prompting the user for confirmation for safety
purposes) that deletes long-stale kernels that no current automatic
thing considers itself responsible for.

What I see is:
(1) new users keep showing up because their machines have broken,
(2) people keep proposing new solutions that are different than the existing 
solutions.

To me this says that there is still a real problem (for some people, not
for me, but I don't think the aspiration of the Ubuntu project is for
machines running Ubuntu to work only for expert users).

Thanks for taking the time to respond!  I am not responding because I am
personally troubled by this issue, but because I believe that the
problem has not been solved for regular end users.

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

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[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

[Sebastian Nohn]

alias remove-old-kernels='dpkg -l linux-{image,headers}-* | awk
'\''/^ii/{print }'\'' | egrep '\''[0-9]+\.[0-9]+\.[0-9]+'\'' | grep -v
4.4.0-79 | xargs sudo apt-get -y purge'

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

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[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

[David Potter]

I'm running Ubuntu 17.04 and whilst I have had the problem for so long I
can't be sure, I think I have had this problem since 15.04. I keep my
software completely up to date and all updates have been applied to
date.  I can honestly say that this issue is by no means fixed. The
reference to unattended-upgrades is a red herring.  I boils down to a
faulty kenal cleanup routine and a poor default for the boot partition
at install time.

I have over the many months of experiencing the problem, finally come up
with the following work around set of commands that free up the space
required to keep me going with a few more updates...

sudo apt-get autoremove;sudo apt-get autoclean;sudo apt-get clean

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed
"s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^
]*\).*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge

sudo apt-get update && sudo apt-get upgrade

Although this sorts the problem out when I get the "not enough space"
issue it doesn't mean that the underlying problem shouldn't be sorted
out.

It takes time and effort that shouldn't be required.
It has taken many months to come up with a decent work-around.
I can't use this type of install for family and friends as they are not savvy 
enough to use the work-around and shouldn't need to be using sudo in the first 
place.

I see this issue is marked as wishlist.  This is a travesty.  It is a
bug pure and simple.

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

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[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

[Jarno Suni]

stub,

I suppose the upgrading process did not change the settings concerning
unattended-upgrade. You should do that manually after upgrading from
14.04 and initially remove extra kernels manually before upgrading.


de0u,

I tell about the restrictions concerning 'apt-get autoremove' in the wiki page. 
Likewise I tell about some alternatives not limited to 'purge-old-kernels'. I 
think it is harsh to say most things do not work, if you do not specify.
You could run Unattended-upgrade from command line to install new kernel 
updates when you want:

sudo apt-get update && sudo unattended-upgrade

As for un-clogging, did you read the 'Safely Removing Old Kernels'
chapter? I see many people take time to complain, but I see none who is
willing to spend even 1$ to get an easier solution for poor Ubuntu
users.

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

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[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

[Dave Eckhardt]

I tried the advice given on
https://help.ubuntu.com/community/RemoveOldKernels, but it mostly
doesn't work.  For example, "apt-get autoremove --purge" removed zero
kernels.  To install "purge-old-kernels" would require installing like
60 dependencies of "bikeshed", which seems unreasonable.

I think part of the problem is that the tools behave differently
depending on who installed a kernel, but /boot gets full based on the
number of kernels, not who installed them.  My machine (a netbook) is
basically never left on long enough to run an unattended upgrade, so I
run upgrades manually.  That means basically every kernel was manually
installed, so something that removes only automatically installed
kernels is 0% useful.  In the real world the problem is disk space, not
assigning blame for who installed a given kernel!  Any process that
installs new kernels without deleting old kernels will eventually fill
up a finite-sized /boot.  Any solution that doesn't address the sad fact
of the finiteness of /boot will leave some people, probably the most
inexpert, stuck.  I personally can manually grub around and remove
kernels, so this is only annoying, not show-stopping, but I think we
have lots of evidence that it is show-stopping for some people, which
suggests that there are many more people out there who don't know how to
complain who are also injured.

Bottom line: /boot is finite, so anybody who installs a kernel without
deleting a kernel is doing something that will sink somebody's ship.
Given that lots of machines out there are clogged by the old maintenance
processes, any solution that doesn't explicitly address how to un-clog a
machine clogged by the previous solutions isn't really a solution.

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

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[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

[Stuart Bishop]

It also requires a complete reinstall if your boot partition is too
small (ie. you accepted the defaults with an LVM or encrypted disk
install pre 16.04 release). Machines upgraded from 14.04 will continue
to fail and be directed here.

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

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[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

[Jarno Suni]

No. Automatic removing is supposed to work in 16.04 and later by
default. But even in 16.04 it works only, if you let unattended-upgrades
install all kernel updates. I have not tested later releases, but I
guess it is the same thing.

I think removing should work in 16.04 and later, if you use the
configuration recommended in
https://help.ubuntu.com/community/RemoveOldKernels. (i.e. setting
Unattended-Upgrade::Remove-Unused-Dependencies "true";) This
configuration works by 14.04, too, if you let unattended-upgrades
install all kernel updates.

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

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[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

[Andreas Lindhé]

Is this bug confirmed resolved for any version of Ubuntu? What release
do I need to get my friends migrated to, in order for this to not be a
problem?

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

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[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

[Jarno Suni]

** Description changed:

  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/Lubuntu/Documentation/RemoveOldKernels
+ https://help.ubuntu.com/community/RemoveOldKernels

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

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[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

[cmp]

I had previously recommended (and consequently installed for them)
Ubuntu 16.04 LVM to my parents however their"/boot" partition was
constantly filling up to 100% and they kept complaining to me about it
(as they are computer illiterate) so I had to eventually reinstall
windows 10 for them and scrap Ubuntu all together. A pretty sad state of
affairs. This is definitely a bug and it is making people turn away from
Linux in favor of Windows. I wish someone would provide a simple fix for
this.

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

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[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

[Jarno Suni]

Correction: I meant systemd, not systemv in the previous comment.

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

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[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

[Jarno Suni]

Jackalux, oh I see you have found the popular one-liner script for
kernel removing. It is too complicated for what it does and too simple
for what it should possibly do.

I have written a script to ease kernel removal:
https://www.bountysource.com/issues/38300038-feature-request-the-command-should-work-like-this
You (and other complainers) could post a small bounty to fund the work. 
Alternatively I think we could form an association to fund the work and other 
stuff that novice Ubuntu users may need provided it could attract enough paying 
members.

Andreas Lindhé, you have a point. I don't know who decides it, but I
suppose the fix to the bug could be backported or SRUed to even older
LTS releases. But it seems that the fix does not work even in 16.04 (Bug
#1675079); that applies only to the new Unattended-Upgrade::Remove-New-
Unused-Dependencies setting in unattended-upgrades, though, so if
setting Unattended-Upgrade::Remove-Unused-Dependencies "true" suits to
you, there is a fix available. Alternatively, e.g. my script could be
run from a cron job or (in 16.04 or later) from a systemv timer to
handle automatic kernel removal.

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

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[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

[Andreas Lindhé]

I hate to be that guy that complains without contributing in a
constructive manner, but I just need to say that it's completely
unreasonable that my mom and friends I recommend Ubuntu to gets this
problem. They should never have to be concerned with what a kernel image
is or why the boot partition is full.

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

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[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

[Jackalux]

I don't have hardware that I imagine will run 16.xx so need this
addressed on older LTS versions.

My output for...
dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed 
"s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d'
 ... was 120 lines long!  I had to teach myself scripting to delete them all 
manually.  I only discovered the error after a different Linux machine I 
created (with a separate /boot) ran into the bug.

Deleting this junk freed 10GB of total disk space.

This is too much to ask of novice users and will stop Linux being more
widely adopted.  I'm not a complete Noob but this was annoying to deal
with... it will be impossible for others.

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

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[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

[James Duvall]

running 16.10, I am also running in to the problem that autoremove fails
to remove old initrd files.  This was greatly exacerbated by bug
#798414 (https://bugs.launchpad.net/ubuntu/+source/initramfs-
tools/+bug/798414).  With an encrypted file system and a small boot
partition, I only have space for 3 kernels.  With the pace of new kernel
builds, it doesn't take long to run out of space.  Now that I understand
the problem, it is not such a big deal, but it was very annoying to have
unhelpful initramfs errors nearly every time I boot up.

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

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[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

[spike speigel]

Found a DKMS bug report here:

https://bugs.launchpad.net/ubuntu/+source/dkms/+bug/1515513

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

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[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

[spike speigel]

This might be aggravated by this DKMS bug which was found in v2.2.0.3,
which incidentally is used in Ubuntu 16.04 LTS, and maybe other
versions.  It doesn't remove old initrd files in /boot *which lead to
full /boot issues and subsequent update problems*

I manually removed a bunch of old initrd images the other day.

http://askubuntu.com/questions/616512/purging-old-kernels-fails-to-
remove-old-initrd-files

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=717584

** Bug watch added: Debian Bug tracker #717584
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=717584

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

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[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

[Bryce Nesbitt]

Not fixed
https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1675079

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  Kernels not autoremoving, causing out of space error on LVM or
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  gets full

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[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

[Bryce Nesbitt]

My elderly parents are on Ubuntu 16.04, with updates set to 'Download and 
install automatically'.
I must manually prune the Kernel images every so often, or the system's 
underwear gets all in a twist, and "apt-get autoremove' won't even work.

Let's be clear: THIS IS NOT FIXED as of 16.04 LTS.

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Kevin Cook]

** Also affects: unattended-upgrades
   Importance: Undecided
   Status: New

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Jarno Suni]

Henry, do you use Ubuntu Trusty, and install kernels manually? See
comment #79.

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Henry]

Ok, I had to manually remove the files as they were added.. after that,
it worked as intended.

Funny thing is, all solutions provide here say that you need to enable
the removal of unused dependencies by setting this:

`Unattended-Upgrade::Remove-Unused-Dependencies "true"`

Problem is.. I already had this set in my `/etc/apt/apt.conf.d
/50unattended-upgrades`..

This is broken, design or not.. it IS a bug.. how can we fix this
permanently? I have servers running unattended upgrades that have
overflowing /boot partitions which is annoying AF.

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Henry]

I can't even run `apt-get autoremove` because it starts filling up my
/boot with old kernels until it runs out of space.. who the hell
designed this madness?

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Mossroy]

For those still having this issue on Ubuntu 16.04 : please check that you did 
not disable the automatic installation of updates.
It might be the reason why the old kernels were not removed for me (not 100% 
yet). See discussion in https://ubuntuforums.org/showthread.php?t=2344232
With a GUI, it's in System settings->Software and updates->Updates tab : "When 
there are security updates" should be set to "Download and install 
automatically" (its default value).
(please comment on the forum thread)

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

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Re: [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

[Mitch Singler]

Seems to be a design flaw rather than a bug.


  From: Ian Weisser 
 To: msing...@yahoo.com 
 Sent: Tuesday, November 22, 2016 9:26 PM
 Subject: [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
   
Happy to discuss and help...in the support forums.
This CLOSED bug report is not the appropriate location to help people 
troubleshoot.

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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/Lubuntu/Documentation/RemoveOldKernels

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

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[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

[Ian Weisser]

Happy to discuss and help...in the support forums.
This CLOSED bug report is not the appropriate location to help people 
troubleshoot.

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

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[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

[Mossroy]

Ian, could you please give the URLs where to find the "similar-looking apt 
problems in the support forums" you're mentioning?
I think many people here (including me) would be interested in what are the 
correct settings you mention.

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

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Re: [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

[David Potter]

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

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[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

[Ian Weisser]

Another (complimentary) solution for accumulating kernels in an LVM
environment: http://blog.surgut.co.uk/2016/11/boot-less-lvm-rootfs-in-
zesty.html

The fix to this bug prevents kernels from accumulating. 
That complimentary solution eliminates the tiny /boot partition, eliminating 
the space problem on LVM desktops and laptops...though not on other 
space-constrained devices.

My updated u-u on Ubuntu 16.04 and 16.10 is working just great, and
correctly preventing kernels from accumulating. However, we have seen
similar-looking apt problems in the support forums: A few systems to
continue to run out of /boot space. Upon investigation, these are
usually due to unconfigured/half-configured packages or user confusion
with the settings.

If your unattended-upgrade is not working properly, and your system
continues to run out of /boot space, please seek help in a support forum
before posting permanently to this CLOSED bug report.

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

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[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

[C Filorux]

The fix is failing in xenial: I have to repeatedly clean up after the
installer, when it complains that it cannot do its work due to disk
space on the tiny /boot partition.  "My disk is full again!"

The bug remains: The automatic update is not considered an unattended
update, since the user is there attending it via an interactive
application (tell me I'm wrong).

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

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[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

[Not Martin Wimpress]

Does anyone have this problem in Linux Mint 18? "Unattended-Upgrade
::Remove-New-Unused-Dependencies" also does not exist for me but the
package was last updated a month ago, which leads me to believe the
configuration file "50unattended-upgrades" wasn't "replaced" with the
new version. Also, the package has other issues including not fetching
from the correct repos as it's a stock Ubuntu config.

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

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[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

[Jarno Suni]

fksdlofioenvdfsdji, 
How did you "want to update && upgrade your server"?
How many kernels can your /boot partition hold? (What is the size of your /boot 
partition?)

Contents of "50unattended-upgrades" is misleading, as there is no
mention of the new configuration variable Unattended-Upgrade::Remove-
New-Unused-Dependencies which defaults to "true" in the file (in Ubuntu
16.04).

Replacing line
// Unattended-Upgrade::Remove-Unused-Dependencies "false";
by
Unattended-Upgrade::Remove-Unused-Dependencies "true";
may help you, if you don't mind that it removes all packages that 'sudo apt-get 
autoremove' would.

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

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[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

[fksdlöfioenvdfsdji]

evendough people talk about not adding more comments to this thread.

i had the problem, then they/you/here they said solution is upgrade to
16.04

- i solved the problem manually und than upgraded to 16.04

- now some months later i wanted to update && upgrade my server and boot
is full again. - and i had to solve it manually again.

so for my experience > fix didn't work.

what i did is:
- nothing
- just have the unatended auto updater install security updates. (configured as 
in 14.04) super default basic.


i now loocket in to the "50unattended-upgrades" file and


// Do automatic removal of new unused dependencies after the upgrade
// (equivalent to apt-get autoremove)
// Unattended-Upgrade::Remove-Unused-Dependencies "false";

is commented..
Would i need to change that? or is that the unrelated one?

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

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[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

[Jarno Suni]

Bug #1624644 claims U-U does not work well with Software Updater a.k.a.
update-manager. Can you confirm?

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

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[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

[Jarno Suni]

This bug is 'Fix Released' because I marked it as such. Maybe too soon
as it is irreversible.

Ok, if someone writes new bug report about kernels not autoremoving,
please link it here.

Ian Weisser, you may e.g contact me privately, if you want to tell me
about the kernel header packages thing.

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

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Re: [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

[Ian Weisser]

Jarno Suni,

This bug report ran it's course, and 'Fix Released' is another way of
saying 'Closed.' You can discuss it, but no developer is likely to read
it...to them, it's a closed issue. It's fixed, and won't be unfixed.
The patch is released, and won't be reverted. The normal workflow is to
file a new bug, not to reopen or discuss a closed bug.

Bug 1357093 is 'Fix Released' because I duplicated the original
reporter's problems, triaged the bug, and forwarded enough information
to a developer who agreed with my triage and decided to fix it. Upon
testing the fix (repeatedly), my duplication of the original reporter's
problem is really fixed.

If you have a triage-able problem with the unattended-upgrades package,
please open a new bug report and provide enough information so I can
triage it. I cannot generally triage a problem that I cannot duplicate.

If all you know is 'it should work but does not work', then please jump
into a support forum (like Ubuntuforums) and let the experts there help
you figure out how to duplicate or triage it. Similar symptoms may come
from very different causes. Having an unresolved problem is really,
really frustrating. Been there.

I'm quite happy to discuss kernel header dependencies and go into much
greater detail...but doing so in this bug report would be rather
counterproductive. The issue is closed, and most of the questions seem
unrelated to the original bug.

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

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[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

[Jarno Suni]

Ian Weisser, the issue is covered by the title of this bug report,
anyway. If 'Unattended-Upgrade::Remove-Unused-Dependencies "true";' is
used, U-U removes extra kernels, even if new kernels are installed by
Software Updater in 16.04. In 14.04 (and in 12.04 I suppose) it does not
work due to bug Bug #1439769. So running 'apt-get autoremove' in
14.04/12.04 may not have the desired effect. Anyway, the point of this
bug report was that old kernels should be autoremoving so that
administator does not have to be concerned of /boot getting full, so I
think another package should be added as being affected, too.

How does installing kernel header packages (which do normally get
installed anyway) prevent marking kernel packages as 'auto'? I do not
see that happening in 16.04 at least. linux-header packages do not
depend on linux-image packages besides linux-header packages may itself
be marked 'auto'.

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

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Re: [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

[Ian Weisser]

Jarno Suni,

That possible cause seems irrelevant to Unattended-Upgrades. Any
package installed by any front-end to apt will be upgraded. U-U doesn't
know what packages are installed, nor care. U-U simply tells aptdaemon
to upgrade packages from the repositories authorized by the user. U-U
does not duplicate nor replace Software Updater, and both can safely be
used.

Try running 'apt autoremove' (16.04) or 'apt-get autoremove'
(12.04/14.04).

If those kernels are not removed, then your problem is the apt-marking, 
not U-U. There are several ways to prevent automatically marking kernel
packages as 'auto' - the most common is by installing kernel header
packages.

If those kernels are removed, then check the U-U logs in /var/log to
ensure that U-U is really operating.

A bug report is an awful place to try to troubleshoot in this way. If
you open a thread on UbuntuForums, we may be able help you better.

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

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[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

[Jarno Suni]

I guess the reason is I have installed some kernels using Software
Updater even if Unattended Upgrades is set to install security updates.
I guess I am not the only one using update-notifier and update-manager
to install updates.

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

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[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

[Ian Weisser]

Jarno Suni,

Okay, I stand corrected on that statement.

Please explain how you determined that Unattended Upgrades is the
culprit, instead kernel header packages or user changes to apt-marking
or other possible causes for the symptom you describe.

With the information so far, I cannot duplicate your issue on my test
system. How can I do so?

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

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[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

[Jarno Suni]

Ian Weisser, I think in 16.04, in contrary to what you claim, packages are not 
autoremoved before doing anything else. 
https://github.com/mvo5/unattended-upgrades tells:
"Unattended-Upgrade::Remove-New-Unused-Dependencies - boolean (default:True)

Remove any new unused dependencies after the upgrade finished."

Anyway, in my 16.04 system, where I have the setting enabled (as
default) and unattended-upgrades enabled (via Software & Updates), I
currently have 6 kernels installed, so I think it is not doing its job
well.

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

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[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

[Jarno Suni]

Brian Candler, check if you have same repositories enabled in both
servers. You should get purge-old-kernels, if you add byobu PPA
repository.

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

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[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

[Brian Candler]

I have two Precise (12.04) servers with

Unattended-Upgrade::Remove-Unused-Dependencies "true";

in 50unattended-upgrades.  One of them cleans up its kernels and only
keeps the last two; one of them accumulates kernels over time, and I
occasionally get alerts about /boot filling up.

On the latter machine, "apt-get autoremove --purge" doesn't remove them.
I end up removing the packages individually; the script "purge-old-
kernels" referred to above doesn't seem to exist.

The main difference I can see is that the latter machine has linux-
image-generic-lts-trusty, whereas the first machine has linux-image-
server.

Both machines have in /etc/apt/apt.conf.d/05aptitude:

aptitude::Keep-Unused-Pattern "^linux-image.*$ | ^linux-restricted-
modules.*$ | ^linux-ubuntu-modules.*$";

So I don't think that's it. I suppose there won't be too many kernel
updates for Precise before it goes end of life now though...

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

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[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

[Ian Weisser]

There seems a lot of confusion in this bug report about which pieces of
the system work together to cause this problem, and which pieces should
be responsible for fixing it.

Marking kernels as eligible for autoremoval is done by apt. The apt
package provides /etc/kernel/postinst.d/apt-auto-removal, which sets the
rules for marking kernel packages eligible for autoremoval. If you
discover a system that keeps more than three kernels (and isn't already
broken), run 'apt autoremove' manually. If the system still has more
than three kernels, then see if you can figure out why and then file a
bug against Apt.

But apt only marks. Apt doesn't actually pull the trigger and run an
autoremove.

Compounding the problem is another issue with apt: Apt in 16.04 and
earlier queues autoremoval instead of running it first (or last...or
scheduled). This is what makes broken systems harder to fix. Out-of-
space hits before autoremove.

Unattended-Upgrades prior to 16.04, if the option is enabled, merely
runs 'apt autoremove' via aptdaemon. U-U does not check nor care what
packages need to be removed. U-U does not check nor care if the system
is LVM/Encrypted or has a small separate /boot partition. None of that
is part of U-U's job.

U-U developers in 16.04 addressed this problem (even though it's
arguably not U-U's problem) by checking if packages are already marked
eligible-for-autoremove at the beginning of the run. If so, it
autoremoves them before doing anything else. Again, U-U doesn't care
about which packages happen to be marked, or wheter the system has a
small /boot partition.

In 16.04, the problem is undeniably fixed. The additional functionality
of U-U has prevented stale kernels from accumulating on all my test
systems. However, developers have understandably shown little interest
in backporting that particular fix.

And there are other options to integrate the fix better into apt itself
instead of U-U. For example, aptdaemon does seem to have queue
management tools - it should be possible to move an 'autoremove' to the
head of queue (incidentally making fixes much easier). Or we can add
another kernel hook file to /etc/kernel/postinst.d/ to trigger an
autoremove upon kernel installs (instead of U-U's daily check). Or we
can add a startup/cron.daily service that simply checks for existence of
a small /boot partition and runs autoremove before (or after) the daily
apt update. Or we can have aptdaemon catch out-of-space errors (instead
of simply passing them), run autoremove, and then try the install again.

Almost none of these possible solutions would be implemented in
Unattended Upgrades.

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

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[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

[Jarno Suni]

I think this `Unattended-Upgrade::Remove-New-Unused-Dependencies` is not
well tested yet. I have not noticed if it has removed any kernel. Also,
I think it will not remove a kernel, if you happen to install a new
kernel using Software Updater before Unattended Upgrades operates.

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

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[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

[Jarno Suni]

Unattended upgrades does not remove old kernels that were installed by
other means than unattended upgrades even if "Unattended-Upgrade
::Remove-Unused-Dependencies "true";" is set in Trusty (and maybe in
Precise) Bug #1492709

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

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[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

[Mathew Hodson]

I don't think backporting the new defaults to Precise and Trusty would
be right for an SRU.

On Precise and Trusty, you can set Unattended-Upgrade::Remove-Unused-
Dependencies "true";

This is false by default. Setting it to true will remove *all* unused
dependencies after every unattended upgrade.

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

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[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

[Mathew Hodson]

This was fixed in Xenial. The default is now to remove newly unused
dependencies after every unattended upgrade.

---
unattended-upgrades (0.89) unstable; urgency=medium

  [ Michael Vogt ]
  * Add `Unattended-Upgrade::Remove-New-Unused-Dependencies` that
defaults to "yes". This ensures that older kernel
get automatically cleaned up and /boot will not overflow.
LP: #1267059
  * Remove downloaded deb packages after successful installs.
This can be controlled via the option:
`Unattended-Upgrade::Keep-Debs-After-Install`
(Closes: #809428)
  * Only remove debs in the cache dir

  [ Steffen Köhler ]
  * Allow to configure sender email via `Unattended-Upgrade::Sender`

  [ Antti Riikonen ]
  * Minor typo fix in comment

  [ Cleto Martin ]
  * bugfix: non-ascii chars in dpkg log file crashes unattended upgrades
Closes: #812857

  [ James Valleroy ]
  * Set debconf value for auto updates based on current configuration.

  [ Alexandre Detiste ]
  * update French transalation

 -- Michael Vogt   Sat, 30 Jan 2016 16:04:52 +0100

** Tags removed: xenial

** Changed in: unattended-upgrades (Ubuntu)
   Importance: High => Wishlist

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

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[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

[Mathew Hodson]

** Tags added: precise trusty xenial

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Title:
  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Mathew Hodson]

** Changed in: unattended-upgrades (Ubuntu)
   Importance: Undecided => High

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

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[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

[Jarno Suni]

Ta, can you upload your 10periodic, 20auto-upgrades and 50unattended-
upgrades from /etc/apt/apt.conf.d? and some log file from /var/log
/unattended-upgrades that tells about kernel upgrades?

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  Kernels not autoremoving, causing out of space error on LVM or
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  gets full

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[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

[Jarno Suni]

Ta, oh, it seems you have tried to apply the workaround earlier. If you
removed extra kernels then and setup Unattended Upgrades to install and
remove kernels automatically, /boot folder should have some space, so I
don't understand why it was full again.

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Jarno Suni]

Ta, which version of Ubuntu do you mean? Did you try the workaround
mentioned in the bug description?

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

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[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

[Ta]

sorry guys one day, I updated and during the update it said my boot
folder had zero space. Then when i restarted I couldn't boot. I managed
to use an older version of the kernel in order to login and backup my
files thankfully.

I think I will uninstall this version of ubuntu. Hopefully this issue is
fixed in a later version of ubuntu...

This time I will remember not to accept the non-defaults and I will
allocated like 5 gigs to the boot sector...

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Jarno Suni]

Can someone confirm that security updates are installed automatically by
default in Xenial?

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Title:
  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Jarno Suni]

Can someone tell if unattended-upgrades has purged any older kernels in
Xenial? Provided that security updates are configured to download and
install automatically in Software & Updates, and there is line

//Unattended-Upgrade::Remove-Unused-Dependencies "true";

or

Unattended-Upgrade::Remove-Unused-Dependencies "false";

and not line

Unattended-Upgrade::Remove-New-Unused-Dependencies "false"

in /etc/apt/apt.conf.d/50unattended-upgrades

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  Kernels not autoremoving, causing out of space error on LVM or
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  gets full

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[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

[Jarno Suni]

Oh, in contrary to previous comment, for some reason, kernel 4.4.0-28
was marked as manually installed. I changed it to be automatically
installed.

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Title:
  Kernels not autoremoving, causing out of space error on LVM or
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  gets full

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[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

[Jarno Suni]

In 16.04, unattended-upgrades installed kernel linux-
image-4.4.0-31-generic. Now /etc/apt/apt.conf.d/01autoremove-kernels
protects releases 4.4.0-28-generic and 4.4.0-31-generic, but unattended
upgrades did not purge two older kernels there are in my system. All of
the kernels are automatically installed. I suppose unattended-upgrades
should purge extra kernels right after it installs new one.

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Jarno Suni]

Anyone else affect Bug #1603620 in Xenial?

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Ta]

thanks jarno thats was my problem. When i run the command without root
it prompts me to install additional packages.

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Title:
  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Jarno Suni]

Ta, "sudo apt-get autoremove --purge" only purges automatically
installed packages, but in Trusty the linux kernel packages are likely
to be marked as being manually installed.

If you mean /boot/initrd.img* files by gzip archives, they should be
removed automatically when you purge the respective kernel package such
as linux-image-3.19.0-59-generic by dpkg (or by apt).

If you have kernel junk in /boot even if dpkg does not list the
kernel(s) as being installed, there may be a bug similar to Bug
#1586303. You may write a separate bug report about it.

If you use Trusty or later, run purge-old-kernels without sudo in shell
to get to know which package to install, if the command is not found.

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Jarno Suni]

Steve Sims, that is why you have to use dpkg first like told in the
"Safely removing old kernels" section of the guide.

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Steve Sims]

sudo purge-old-kernels exists for me (Ubuntu 15.04) but fails because
... /boot is full :p

[snip]
update-initramfs: Generating /boot/initrd.img-3.19.0-50-generic
gzip: stdout: No space left on device
E: mkinitramfs failure cpio 141 gzip 1
[snip]

This is such a long-standing issue, have to wonder why?

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Ta]

Well when I attempted the workaround I got this:

sudo apt-get autoremove --purge
Reading package lists... Done
Building dependency tree   
Reading state information... Done
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.

I actually used the above command to clear up space ages ago however it
no longer worked. The guide said to remove old kernels and leave the
latest kernel as a backup by using dpkg. But there was nothing to
remove. Thats why I looked in boot partition and checked for junk. Maybe
dpkg is not removing the gzip archives after a kernel is removed?

If you think I damaged my system, do you think I should reformat my
system?

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Ta]

Hi also for me

sudo purge-old-kernels
sudo: purge-old-kernels: command not found

purge-old-kernels does not work.

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Jarno Suni]

The workaround page says: "Warning: Do NOT use the 'rm' command to
delete files that were placed by the package manager, including kernel
files. It merely creates a new headache for you to solve when the
package manager cannot remove packages due to 'file not found'. Always
use the package manager to remove files that were placed by the package
manager."

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

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Re: [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

[Donat]

Thanks for the update.

On Sat, 11 Jun 2016 at 03:00 Ta  wrote:

> Ok I managed to resolve this issue:
>
> opened file explorer as root using gksudo. I navigated to the boot
> folder then manually deleted all the gzip archives ( because I expect
> they would not be used).
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (237035).
> 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/Lubuntu/Documentation/RemoveOldKernels
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1357093/+subscriptions
>
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[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

[Jarno Suni]

And use dpkg directly only, if apt-get (or purge-old-kernels) fails.

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Jarno Suni]

Ta, dpkg tells the header is not installed. If you have separate /boot
partition, the existence of headers do not matter because they are not
stored in /boot. If the current instructions do not work, please comment
at http://askubuntu.com/a/731791/21005 to tell what exactly went wrong.

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  Kernels not autoremoving, causing out of space error on LVM or
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[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

[Ta]

Ok I managed to resolve this issue:

opened file explorer as root using gksudo. I navigated to the boot
folder then manually deleted all the gzip archives ( because I expect
they would not be used).

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Title:
  Kernels not autoremoving, causing out of space error on LVM or
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  gets full

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[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

[Ta]

also I noticed there are gzip archives in the boot folder can I manually
remove these?

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

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[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

[Ta]

also I noticed there are gzip archives in the boot folder can I manually
remove these?

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

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[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

[Ta]

I followed the workaround steps and they didn't work I removed the only
unused header and it still says its installed?

dpkg: warning: ignoring request to remove linux-headers-4.2.0-30-generic which 
isn't installed
rc  linux-image-3.19.0-25-generic
rc  linux-image-3.19.0-51-generic
pi  linux-image-3.19.0-59-generic
rc  linux-image-4.2.0-27-generic
ii  linux-image-4.2.0-30-generic <--- i removed the previous good old kernel 
and there is still not 
enough space. This is an absolute joke. Why was the boot partition given so 
little space? 

How am i supposed to upgrade my system now. Do I need to backup
everything and reinstall the latest version of ubuntu for a usb?

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

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[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

[Ta]

so i still have this bug how am I meant to fix this? Am I meant to
follow the work around or do I need to upgrade my system to the latest
version of ubuntu?

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

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[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

[Jarno Suni]

Except upgrading to newer release by an installation media may leave old
kernels that have to be removed manually: Bug #1586303

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

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[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

[Jarno Suni]

For 16.04:
There are no additional steps required that I know.

For older releases;
See https://help.ubuntu.com/community/Lubuntu/Documentation/RemoveOldKernels

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

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[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

[Jarno Suni]

** Description changed:

  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/Lubuntu/Documentation/RemoveOldKernels

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

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