I want to setup a custom init script to run at startup in an image with yocto, i have followed the correct answer here - it is the same as i want - and since i use pyro version i set these variables in the local.conf file as stated in the documentation
DISTRO_FEATURES_append = " systemd"
VIRTUAL-RUNTIME_init_manager = "systemd"
DISTRO_FEATURES_BACKFILL_CONSIDERED = "sysvinit"
VIRTUAL-RUNTIME_initscripts = ""
The problem is that the initscript.service is not called when the system boots up and i don't find thing in the /var/log/messages despite the script and the service file are transferred and systemd is exist.
i also tried use this option as a replacement of init in yocto
pkg_postinst_keyfile() { #where keyfile is a recipe is added to IMAGE_INSTALL_append
if [ x"$D" = "x" ]; then
logger "key file is added"
else
exit 1
fi
}
And again, i cannot find the statement of "key file is added" in the logs despite the recipe is executed and the a key file is transfer to the image as expected from the recipe.
so, is something wrong about the correct answer ? i see it good but i don't know where the problem. And if anyone can give me a solid example of doing the equivalent using Vinit ?
The target machine is "qemux86-64"
Recipes
I have a layer which is called meta-mylayer, its tree is:
conf/layer.conf
recipes-core/mylayer-initscript/ (as described in the above link)
recipes-core/images/apt-image.bb
the apt-image is the image i built above core-minimal and its content
SUMMARY = "An image which add the support of using deb package management"
inherit core-image
include recipescore/images/core-image-minimal.bb
IMAGE_FEATURES += "package-management"
IMAGE_INSTALL_append = "gnupg coreutils keyfile initscript"
IMAGE_LINGUA = " "
LICENSE = "MIT"
IMAGE_ROOTFS_SIZE ?= "16192"
PACKAGE_FEED_URIS = "http://<public ip here>/my-repo/yahia-repo/expiremental \"
PACKAGE_FEED_BASE_PATHS = "deb"
PACKAGE_FEED_ARCHS = "all"
pkg_postinst_keyfile() {
if [ x"$D" = "x" ]; then
logger "key file is added"
else
exit 1
fi
}
initscript recipe and all files is the same as stated in the link with no change.
if you interested about keyfile recipe, here is it
#
# The goal of this recipe is to move keyFile to target machine so it can be used as public key for
# authoriztion of deb repo.
#
# Author: Yahia Farghaly
SUMMARY = "Move keyFile example to /deb_key"
SECTION = "examples"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
SRC_URI = "file://keyFile \
file://sources.list"
#to inform yocto where to package the file
FILES_${PN} += " /deb_key"
S = "${WORKDIR}"
do_install() {
install -d ${D}/deb_key
install -m 0755 keyFile ${D}/deb_key
}
And for sure, i do bitbake apt-image
service script
[Unit]
Description=start initscript upon first boot
[Service]
Type=simple
ExecStart=/bin/sh -c 'sleep 5 ; /usr/sbin/initscript.sh'
initscript.h
#!/bin/sh
logger "starting initscript"
# do some work here. Mount rootfs as rw if needed.
logger "initscript work done"
echo "hi yahia" > /deb_key/hello
i am not sure that rootfs result of yocto is rw by default or r-only ?
initscript recipe
SUMMARY = "Initial boot script"
DESCRIPTION = "Script to do any first boot init, started as a systemd service which removes itself once finished"
LICENSE = "CLOSED"
PR = "r3"
SRC_URI = " \
file://initscript.sh \
file://initscript.service \
"
inherit allarch systemd
NATIVE_SYSTEMD_SUPPORT = "1"
SYSTEMD_PACKAGES = "${PN}"
SYSTEMD_SERVICE_${PN} = "initscript.service"
do_compile () {
}
do_install () {
install -d ${D}/${sbindir}
install -m 0755 ${WORKDIR}/initscript.sh ${D}/${sbindir}
install -d ${D}${systemd_unitdir}/system/
install -m 0644 ${WORKDIR}/initscript.service ${D}${systemd_unitdir}/system
}
