[OE-core] RFE: make the init manager an image feature (again)

[Otavio Salvador]

On Fri, Feb 15, 2013 at 4:19 PM, Enrico Scholz
<enrico.scholz at sigma-chemnitz.de> wrote:
> Hello,
>
> it would be nice when the decision to make the init manager a distribution
> feature will be reverted to the old oe-meta mechanism.
>
> Being a distribution feature means, that packages are created in such a
> way that it is impossible to split off unwanted and heavy weighted
> functionality at image creation time.
>
> E.g. on most of my systems, I create two kinds of images: a full
> featured, systemd based one and a very minimal rescue system with
> busybox and some filesystem utilities.  With recent systemd packaging
> change, the rescue image size grow up from 5.9 MiB to 27 MiB because
> systemd dependencies are hardcoded in mandatory packages.
>
> Formerly, systemd dependencies could be avoided by adding the -systemd
> packages to BAD_RECOMMENDATIONS (e.g. due to busybox-syslog ->
> busybox-syslog-systemd rrecommend).
>
> I am aware that initscripts were always part of the main package.  But
> sysvinit was very lightweighted and the extra space either negligible or
> easy to recover by removing some files in IMAGE_PREPROCESS_COMMAND.
>
> Hence my recommendation: make the init manager an image feature again
> and create -systemd and -sysv packages with the corresponding scripts.
> OpenEmbedded is still for embedded devices where size matters.
>
>
> Of course, systemd can be still a distribution feature to enable things
> like socket activation as part of PACKAGE_CONFIG.  But dependencies on
> init system packages should be RRECOMMENDS which can be overridden
> easily at image creation time.

I fully support this! I also want this flexibility back (in fact I see
no reason why it has been dropped).

-- 
Otavio Salvador                             O.S. Systems
E-mail: otavio at ossystems.com.br  http://www.ossystems.com.br
Mobile: +55 53 9981-7854              http://projetos.ossystems.com.br