Am 03.01.23 um 15:41 schrieb Michael Opdenacker via lists.openembedded.org:
Hello Richard,
Trying to improve the documentation about the selection of the init
system, I'm jumping back to this old conversation, following a change
that you made (https://lists.yoctoproject.org/g/poky/message/12760).
Am 06.07.22 um 18:40 schrieb Khem Raj:
On Wed, Jul 6, 2022 at 12:38 PM Robert P. J. Day
<rpj...@crashcourse.ca> wrote:
not sure why i never noticed this before, but i started a new
project from the poky layer (not OE), and realized that poky.conf
explicitly sets:
INIT_MANAGER = "sysvinit"
which can't be overridden in my local.conf. if i want systemd, i guess
i can initialize my project from the OE layer, and i also notice that
i could use poky-altcfg.conf.
but is there a reason that the default poky-based project fixes
INIT_MANAGER to "sysvinit". perhaps just for simplicity?
poky defaults to sysvinit.
poky has poky-alt distro fi you want to use say systemd
But why not setting INIT_MANAGER with "?=" instead of "=" in poky.conf?
This way, we could just override INIT_MANAGER from local.conf.
I checked that the generated system works. This would make things
easier to document, unless I'm missing other reasons.
Richard told me on IRC that, from memory, this was set because of
interference poky-altcfg (if I understood correctly).
I understand one recommended way to have systemd instead of sysvinit in
Poky is to use "poky-altcfg" instead of "poky" as distro.
Similarly, I guess I should use "poky-tiny" if I want to use
"mdev-busybox" as INIT_MANAGER.
Then, I guess I'll document something like this:
* With the OpenEmbedded build system, you can choose your init system
by setting INIT_MANAGER to "sysvinit", "systemd", "busybox-mdev" or
"none"
* BUT if you're using Poky, that won't work, so your options will be
to use either "poky" (sysvinit), "poky-altcfg" (systemd) or
"poky-tiny" (mdev-busybox).
Does this sound like the right way to document this?
Cheers
Michael.
--
Michael Opdenacker, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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