[yocto] Enable wpa_supplicant at wlan0.service on boot with systemd

[Conor Slater]

Thank you Chen Qi,

This makes it a lot clearer...

On Wed, 14 Nov 2018 at 10:23, ChenQi <Qi.Chen at windriver.com> wrote:

> For the current codes, manually creating symlink is the easiest way to
> achieve your goal.
> The current mechanism in systemd.bbclass has to 'enable' or 'disable' all
> services in SYSTEMD_SERVICE_xxx. There's no mechanism to enable or disable
> a subset of them.
> This might need to be improved.
>
> Best Regards,
> Chen Qi
>
> On 11/14/2018 05:11 PM, Conor Slater wrote:
>
> Dear All,
>
> I'm trying to start wpa_supplicant with wlan0 as the interface on boot
> using systemd.
>
> I've created the following .bbappend for wpa_supplicant to install the new
> configuration and enable the wpa_supplicant at wlan0.service. This doesn't
> enable the service and somehow breaks being able the start the
> wpa_supplicant at wlan0.service.
>
> Has anybody else figured out how to get this to work?
>
> $ cat wpa-supplicant_2.%.bbppend:
>
> FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
>
> SRC_URI_append = " file://wpa_supplicant-wlan0.conf"
>
> inherit systemd
>
> SYSTEMD_PACKAGES = "${PN}"
> SYSTEMD_SERVICE_${PN} += " wpa_supplicant at wlan0.service"
> SYSTEMD_AUTO_ENABLE = "enable"
>
> do_install_append () {
>     install -d ${D}${sysconfdir}/wpa_supplicant
>     install -m 0644 ${WORKDIR}/wpa_supplicant-wlan0.conf
> ${D}/${sysconfdir}/wpa_supplicant/
> }
>
> As a workaround, I created a .bbappend to manually create the symlink for
> systemd which does enable the service. Although, I would like to know if
> there is a better way of doing this.
>
> $ cat wpa-supplicant_2.%.bbppend:
>
> FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
>
> SRC_URI_append = " file://wpa_supplicant-wlan0.conf"
>
> do_install_append () {
>     install -d ${D}${sysconfdir}/wpa_supplicant
>     install -m 0644 ${WORKDIR}/wpa_supplicant-wlan0.conf
> ${D}/${sysconfdir}/wpa_supplicant/
>     install -d ${D}${sysconfdir}/systemd/system/multi-user.target.wants
>     ln -s ../../../../lib/systemd/system/wpa_supplicant at .service ${D}${
> sysconfdir}/systemd/system/multi-user.target.wants/wpa_supplicant at wlan0.service
> }
>
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.yoctoproject.org/pipermail/yocto/attachments/20181114/82dad689/attachment.html>