Re: [RFC 0/2] Remove Packages during Postprocessing

[Gylstorff Quirin <quirin.gylstorff@siemens.com>]

On 2/24/20 3:24 PM, Henning Schild wrote:
> Hi,
> 
> my opinion on that is clear. Fix it upstream or live with those
> packages. You are either on a distro or fiddle around and tune
> everything until you are the only one on the planet testing your setup.
> That is Isar vs. yocto ... whoever thinks they _need_ that should maybe
> think again. If they need it they can put it into their own layer or
> use yocto ;).
> I do not think upstream should carry such hacky features unless we get
> better reasoning ... Removing "required" packages has the potential to
> break your image in funny ways ... that is much more expensive than a
> few MB disc space. All affected packages are likely already cleared and
> vulnerabilty monitored by someone else, find that someone and share the
> cost!
> 
> Henning

Hi Henning,

I understand your concern and I think you are right. But some people
already hack the build process in similar ways and this is a way to give
them some support.

I want to collect the option of community regarding this patch.

Quirin

> 
> On Fri, 21 Feb 2020 15:53:46 +0100
> "Q. Gylstorff" <Quirin.Gylstorff@siemens.com> wrote:
> 
>> From: Quirin Gylstorff <quirin.gylstorff@siemens.com>
>>
>> Some packages even if the are part of minbase are not necessary
>> to run a debian system. Debian has some issues and experiments
>> to remove packages from minbase [1]. This feature allows a
>> expert user to remove packages from the final image during post
>> processing.
>>
>> The reason for this are e.g. disk usage reduction and reduction
>> of the clearing effort.
>>
>> The method to remove packages in postprocessing is a best-effort
>> action.
>>
>> Another way would be to identify like [1] packages in
>> minbase which can be removed without compremising the isar rootfs
>> creation and remove them directly after or during bootstrapping.
>> If a package is used for a production related feature it should be
>> reinstalled.
>>
>>
>> [1]: https://wiki.debian.org/BusterPriorityRequalification
>>
>> Quirin Gylstorff (2):
>>    meta/classes: Add remove packages to rootfs postprocessing
>>    meta-isar/images: Remove gcc-8-base from rootfs
>>
>>   meta-isar/recipes-core/images/isar-image-base.bb |  4 ++++
>>   meta/classes/image.bbclass                       |  2 +-
>>   meta/classes/rootfs.bbclass                      | 13 +++++++++++++
>>   3 files changed, 18 insertions(+), 1 deletion(-)
>>
> 

-- 
Quirin Gylstorff

Siemens AG
Corporate Technology
Research in Digitalization and Automation
Smart Embedded Systems
CT RDA IOT SES-DE
Otto-Hahn-Ring 6
81739 Muenchen, Germany
Mobile: +49 173 3746683
mailto:quirin.gylstorff@siemens.com
www.siemens.com/ingenuityforlife

Siemens Aktiengesellschaft: Chairman of the Supervisory Board: Jim 
Hagemann Snabe; Managing Board: Joe Kaeser, Chairman, President and 
Chief Executive Officer; Roland Busch, Lisa Davis, Klaus Helmrich, 
Cedrik Neike, Michael Sen, Ralf P. Thomas; Registered offices: Berlin 
and Munich, Germany; Commercial registries: Berlin Charlottenburg, HRB 
12300, Munich, HRB 6684; WEEE-Reg.-No. DE 23691322

Important notice: This e-mail and any attachment thereof contain 
corporate proprietary information. If you have received it by mistake, 
please notify us immediately by reply e-mail and delete this e-mail and 
its attachments from your system. Thank you.