[Aptitude-devel] Bug#826941: Bug#826941: aptitude: inconsistent decisions for auto-installed package removal / empty list for the reason

[Vincent Lefevre]

On 2016-06-11 01:04:25 +0200, Axel Beckert wrote:
> Hi,
> 
> Vincent Lefevre wrote:
> > After doing an update ("u" in the UI) and tried to upgrade ("U"),
> > which I cancelled,
> 
> How have you cancelled it?

Ctrl-u

> > aptitude wants to remove two packages:
> > 
> > --\ Packages being removed because they are no longer used (2)                  
> > idA linux-headers-4.5.0-1-amd64     -4562 kB  4.5.1-1                  <none>
> > idA linux-headers-4.5.0-1-common    -28.4 MB  4.5.1-1                  <none>
> > 
> > This does not make sense.
> 
> It does.
> 
> > Either it should have proposed to remove them before, or there is a
> > reason to keep them and it should keep them.
> 
> Nope, there's another thing which is involved which you didn't seem to
> take into account:
> 
> > Header files for Linux 4.5.0-1-amd64
> > linux-headers-4.5.0-1-amd64 (remove, 4.5.1-1) was installed automatically; it  ▒
> > is being removed because all of the packages which depend upon it are being    ▒
> > removed:                                                                       ▒
> > 
> > The list is empty! This confirms that there is something wrong.
> 
> Not necessarily.
> 
> Because all this is very likely caused by the dynamically generated
> contents of /etc/apt/apt.conf.d/01autoremove-kernels.

I didn't know that. I think that this should be documented in some
way. In particular, when the list is empty, there should be some
indication.

Moreover, when a package matches the APT::NeverAutoRemove list, it
should be mentioned by "aptitude why".

-- 
Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
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