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ref-manual/faq: add q&a on systemd as default

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Originally written by Richard Purdie, but formatted in rst syntax and
slight rephrasing.

Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
(From yocto-docs rev: 65235b647a855c0ffc8aa71e06b05b78d62ba773)

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
(cherry picked from commit 110690bee14f7263a5a34145e91e4450ec3bf4e6)
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Antonin Godard
2025-01-31 10:53:34 +01:00
committed by Steve Sakoman
parent f32902112e
commit b52f42dd3b
1 changed files with 22 additions and 0 deletions
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documentation/ref-manual/faq.rst
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@@ -45,6 +45,28 @@ See :yocto_wiki:`Products that use the Yocto Project
Wiki. Don't hesitate to contribute to this page if you know other such
products.
Why isn't systemd the default init system for OpenEmbedded-Core/Yocto Project or in Poky?
-----------------------------------------------------------------------------------------
`systemd <https://systemd.io/>`__ is a desktop Linux init system with a specific
focus that is not entirely aligned with a customisable "embedded" build
system/environment.
It understandably mandates certain layouts and configurations which may
or may not align with what the objectives and direction :term:`OpenEmbedded-Core
(OE-Core)` or Yocto Project want to take. It doesn't support all of our targets.
For example `musl <https://www.musl-libc.org/>`__ support in systemd is
problematic.
If it were our default, we would have to align with all their choices
and this doesn't make sense. It is therefore a configuration option and
available to anyone where the design goals align. But we are clear it
is not the only way to handle init.
Our automated testing includes it through the ``poky-altcfg`` :term:`DISTRO` and
we don't really need it to be the default: it is tested, it works, and people
can choose to use it.
Building environment
====================