[yocto] Issue creating systemd service recipe

[Alexis Lothoré]

Hello Matt,
thank you for your answer, I was typing a mail to, I found this fix too
minutes before your answer ^^
However, I do not understand why the first syntax did not work, since the
systemd class seems to seek the service file here to. Here is the code
which make me think of that possibility, in systemd.bbclass :

139     def systemd_check_services():
140         searchpaths = [oe.path.join(d.getVar("sysconfdir", True),
"systemd", "system"),]
141         searchpaths.append(d.getVar("systemd_system_unitdir", True))

But at least, it works with the new path in my recipe

2016-06-11 13:20 GMT+02:00 Alexis Lothoré <alexis.lothore at gmail.com>:

> Hello,
> I am currently trying to set up an Iot showcase platform using
> lowpan-tools on raspberry.
> To do so, I added systemd and I am now trying to create a recipe
> installing my lowpan configuration script and lowpan.service. I used
> connman-init-systemd.bb in meta-eca as a template to my recipe, which
> looks like the following (lowpan-init-systemd.bb):
>
> ==========================================================
> SUMMARY = "Configuration files to set up Lowpan interface"
> DESCRIPTION = "Used to configure a lowpan interface with systemd when
> driver is loaded"
> LICENSE = "MIT"
> LIC_FILES_CHKSUM = "file://COPYING;md5=0835ade698e0bcf8506ecda2f7b4f302"
>
> SRC_URI += "\
>         file://COPYING \
>         file://init.sh \
>         file://lowpan.service \
> "
> S = "${WORKDIR}"
>
> inherit systemd
>
> SYSTEMD_PACKAGES = "${PN}"
>
> SYSTEMD_SERVICE_${PN} = " lowpan.service"
>
> FILES_${PN} += " lowpan.service \
>                  /opt/lowpan/init.sh \
> "
>
>
> do_install () {
>     install -d ${D}{sysconfdir}/systemd/system
>     install -d ${D}/opt/lowpan
>     install -m 0755 ${WORKDIR}/lowpan.service
> ${D}{sysconfdir}/systemd/system
>     install -m 0755 ${WORKDIR}/init.sh ${D}/opt/lowpan
> }
> ==============================================================
> and the service file, located in "files" :
> ==============================================================
> [Unit]
> Description=Lowpan interface configuration
> Wants=sys-subsystem-net-devices-wpan0.device
> After=sys-subsystem-net-devices-wpan0.device
>
> [Service]
> Type=oneshot
> RemainAfterExit=no
> ExecStart=/opt/lowpan/init.sh
>
> [Install]
> WantedBy=multi-user.target
> ==============================================================
>
> I chose to inherit systemd to be sure that my service is not only
> installed but also enabled at first boot.
> However, when I try to bitbake this recipe only (or the whole image, which
> has a IMAGE_INSTALL_append = "lowpan-tools lowpan-init-systemd"), I get the
> following error at some point :
>
>
> *lowpan-init-systemd-1.0-r0 do_package: Function failed:
> SYSTEMD_SERVICE_lowpan-init-systemd value lowpan.service does not exist*
> Thinking it was due to file location, (trying to read systemd.bbclass, I
> think the class does not find my service file) I tried adding ${S},
> ${WORKDIR} or so before lowpan.service in SYSTEMD_SERVICE, but it changed
> nothing.
> Can someone explain me what I am doing wrong in this case ?
>
> --
> Alexis Lothoré
> Élève-Ingénieur à l'INSA de Toulouse
> 5A Automatique-Electronique : Systèmes Embarqués Critiques
> 06.51.59.81.45
>



-- 
Alexis Lothoré
Élève-Ingénieur à l'INSA de Toulouse
5A Automatique-Electronique : Systèmes Embarqués Critiques
06.51.59.81.45
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