[yocto] Changing over to systemd (no dhcp)

[Rick Altherr]

systemd-networkd is the systemd daemon for setting up the network.  It
looks like the PACKAGECONFIG settings exist for it in
http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta/recipes-core/systemd/systemd_232.bb
but it isn't enabled by default.  Add that and it should work.

Rick

On Wed, Jan 18, 2017 at 7:10 AM, <colin.helliwell at ln-systems.com> wrote:

> We have a configuration for our embedded system which is working via SysV,
> but we’re investigating moving over to systemd.
>
> Not sure if this is ‘wise’ – if anyone has technological arguments
> for/against then I’d be interested – but I wanted to investigate it anyway.
>
>
>
> I’ve modified local.conf (right or wrong) with
>
>   DISTRO_FEATURES_append = " systemd"
>
>   VIRTUAL-RUNTIME_init_manager = "systemd"
>
>   DISTRO_FEATURES_BACKFILL_CONSIDERED = "sysvinit"
>
>   VIRTUAL-RUNTIME_initscripts = ""
>
>   KERNEL_ENABLE_CGROUPS = "1"
>
>
>
> I also found a readme (https://cgit.freedesktop.org/
> systemd/systemd/tree/README#n37) about the kernel requirements for
> systemd, and it does at least now boot.
>
> However although eth0 is coming up (‘ifconfig eth0’), there doesn’t seem
> to be any dhcp happening – no IP etc.
>
> Previously (under SysV) I had the busybox dhcp client; now it seems that
> is missing. There’s a symlink /etc/systemd/system/busybox-udhcpc.service
> to /dev/null
>
> I’m using
>
>   Poky Jethro
>
>   Kernel 4.4.0
>
>   Busybox 1.23.2 (with ‘CONFIG_FEATURE_SYSTEMD=y’)
>
>
>
> I wondered if this is just a simple switch I’m missing somewhere, or is
> there a whole load more modifications I need to dig into and hand-craft?
> (Was hoping for something ‘out of the box’….)
>
>
>
> Thanks
>
>
>
> --
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>
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