[yocto] recipe removing (some)contents of /etc

[Smith, Virgil]

This seems to bite a lot of people (myself included).
Change
IMAGE_INSTALL += “canlogger”
to
IMAGE_INSTALL_append = “ canlogger”
or possibly better
EXTRA_IMAGE_INSTALL_append = “ canlogger”

+= is evaluated immediately during parsing just like = and therefore behaves just like = if the variable did not yet exist.  This then defeats the ?= assignment of IMAGE_INSTALL in your distro/.conf, image recipe, or core-image.bbclass.

The “override syntax” _append gets appended POST parsing and so does not preempt the ?= default assignment.

From: yocto-bounces at yoctoproject.org [mailto:yocto-bounces at yoctoproject.org] On Behalf Of Oliver
Sent: Thursday, May 14, 2015 10:27 AM
To: yocto at yoctoproject.org
Subject: [yocto] recipe removing (some)contents of /etc

Hello

I have the below's simple recipe(starting a script in sysV runlevel 2), but when I add it to the image with
IMAGE_INSTALL += "canlogger"
in my local.conf, most of the contents of /etc gets removed/overwritten making the system unbootable.

Does someone sees something wrong?

#####
DESCRIPTION = "Start CAN services logging"
SECTION = "examples"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302<file:///\\$%7bCOMMON_LICENSE_DIR%7d\MIT;md5=0835ade698e0bcf8506ecda2f7b4f302>"
PR = "r0"

SRC_URI += "file://canlogger<file:///\\canlogger>"

INITSCRIPT_NAME = "canlogger"
INITSCRIPT_PARAMS = "start 98 2 ."

do_install() {
    install -d ${D}${sysconfdir}/init.d/
    install -m 0755 ${WORKDIR}/canlogger ${D}${sysconfdir}/init.d/canlogger
}

inherit update-rc.d
#####


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