Yocto/Bitbake recipe for adding empty directory to rootfs Embedded Linux

Question

Is there any recipe for adding a new, empty directory to the rootfs? I tried adding this into one of my bbappend file:

do_install() {
   install -d ${D}/tmp/myNewDir
}
FILES_${PN} += "/tmp/myNewDir"

but I am getting a non descriptive error, Function failed: do_install

Answer 1

There are several ways. The image command way is already described by StackedUser.

You can also try to extend some of your recipes (as you are doing in your question). I guess that you are seeing the error because you are overwriting the do_install task. You are probably wanting to extend it, so you should add _append to the task name, ie:

do_install_append () {
   install -d ${D}/tmp/myNewDir
}

BTW, the error "Function failed: do_install" you are hitting usually show an error code or a problematic command. Maybe there is something.

Another way is to create a simple recipe and add it to the image, here is a stub:

SUMMARY = "XXX project directory structure"
# FIXME - add proper license below
LICENSE = "CLOSED"
PV = "1.0"

S = "${WORKDIR}"

inherit allarch

do_install () {
        install -d ${D}/foo/bar
}

FILES_${PN} = "/foo/bar"

Answer 2

In our image recipe we have something like this to create a new directory:

create_data_dir() {
   mkdir -p ${IMAGE_ROOTFS}/data
}

IMAGE_PREPROCESS_COMMAND += "create_data_dir;"