[yocto] EXT SENDER - yocto Digest, Vol 104, Issue 95

Thu May 23 05:59:34 PDT 2019

Hi,
     I have a question. How to add commands like "ubiattach" to /usr/bin of rootfs image. I struggling with the recipes. I do not want to write my own recipe but I need to edit some recipe and add the command. Which is the place? I am using yocto for my project on TI platform and Linux.
Kindly help.

Thanks,
Harish.

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Subject: EXT SENDER - yocto Digest, Vol 104, Issue 95

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Today's Topics:

   1. GPLv3 package present in rootfs (virendra kumar thakur)
   2. Building single package as image, respecting dependencies
      (Norman Stetter)

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Message: 1
Date: Wed, 22 May 2019 18:55:45 +0530
From: virendra kumar thakur <coolveer07 at gmail.com>
To: yocto at yoctoproject.org
Subject: [yocto] GPLv3 package present in rootfs
Message-ID:
	<CANGFfGamnoJ-YB=m7cvN4XBWieY8V53s+pRfg00e1-AwwqztBg at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hello team,

I want to remove some GPLv3 package from rootfs, but it is still present.

I am using INCOMPATIBLE_LICENSE = "GPL-3.0 LGPL-3.0 AGPL-3. 0"

still some package gnutls, libidn2, libassuan, are added into rootfs.
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Message: 2
Date: Wed, 22 May 2019 12:36:18 +0000
From: Norman Stetter <Norman.Stetter at garz-fricke.com>
To: "yocto at yoctoproject.org" <yocto at yoctoproject.org>
Subject: [yocto] Building single package as image, respecting
	dependencies
Message-ID:
	<A24DC035FE5F8F4BAE7F63FB1B07D7BC5327B1 at SRV24.hamburg.garz-fricke.de>
Content-Type: text/plain; charset="iso-8859-1"

Hi there,

I am currently working on a minimal CLI only system.
The image is based on 'core-image-base' using sysvinit and busybox.
To reduce image size and boot time, I removed as many packages as possible. For some application cases I will need python3 though.
My idea was to have python3 as some kind of add-on in a squashfs image, that can be mounted only when needed.

So I tried to build an image only containing the python3 package, but as little as possible otherwise, like this:

inherit image
IMAGE_FSTYPES = "squashfs-xz"
DEFAULT_TASK_PROVIDER = ""
DISTRO_EXTRA_RDEPENDS = ""
DISTRO_FEATURES = ""
POKY_DEFAULT_EXTRA_RDEPENDS = ""
IMAGE_FEATURES = ""
IMAGE_LINGUAS = ""
CORE_IMAGE_BASE_INSTALL = ""
RDEPENDS_${PN} = ""
PACKAGE_EXCLUDE = "busybox openssl run-postinsts update-rc.d"
VIRTUAL-RUNTIME_dev_manager = ""
VIRTUAL-RUNTIME_login_manager = ""
VIRTUAL-RUNTIME_init_manager = ""
VIRTUAL-RUNTIME_initscripts = ""
VIRTUAL-RUNTIME_keymaps = ""
VIRTUAL-RUNTIME_base-utils = ""
PREFERRED_PROVIDER_virtual/base-utils = ""

IMAGE_INSTALL = "python3"

But like this I can only manually exclude packages I already have in my main OS image. Some packages can't be excluded at all, as python3 depends on them and won't build if they are excluded.

Is there a way to have dependencies between images? So I could have the python-image build know which dependencies are already built into my OS image and therefore not include them itself?

Or would it be better to avoid building a second image and rather build 'python3' with my OS-image, adding it to PACKAGE_EXCLUDE and from within this build process pack all python3 files into an image? If I were to pursue this method, any suggestions on how to separate the python3 files from the rest of my rootfs, including the necessary dependencies?

Any advice and idea is much appreciated.

Mit freundlichen Gr??en / Best regards
Norman Stetter
SW ENWICKLUNG EMBEDDED SYSTEMS
Garz & Fricke GmbH

21079 Hamburg
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