docs/04_Developer_Guides/02_AGL_Layers/02_meta_agl.md

   1 ---
   2 title: meta-agl
   3 ---
   4
   5 ## Introduction
   6
   7 The `meta-agl` layer provides the minimal set of software
   8 to boot an AGL Distribution system.
   9 You use this layer as the minimal core on which to build AGL profiles.
  10
  11 **NOTE:** The `meta-agl` layer does not include a reference UI.
  12   The reference UI is included as part of the
  13   [`meta-agl-demo`](03_meta_agl_demo.md) layer.
  14   Furthermore, `meta-agl` does not include additional components, such
  15   as security, which are part of the
  16   `meta-agl-extra` layer.
  17
  18 ## Sub-Layers
  19
  20 The `meta-agl` layer itself contains many sub-layers and files.
  21 Following is a "tree" look at the layer:
  22
  23 ```
  24 .
  25 ├── LICENSE
  26 ├── LICENSE.GPL-2.0-only
  27 ├── LICENSE.MIT
  28 ├── README-AGL.md
  29 ├── README.md -> meta-agl.md
  30 ├── agl-layers-overview.md
  31 ├── docs
  32 ├── meta-agl-bsp
  33 ├── meta-agl-core
  34 ├── meta-agl-core-test
  35 ├── meta-agl-ic
  36 ├── meta-agl-ivi
  37 ├── meta-agl.md
  38 ├── meta-netboot
  39 ├── meta-pipewire
  40 ├── scripts
  41 ├── templates
  42 ```
  43
  44 This list provides some overview information on the files and sub-layers
  45 in `meta-agl`:
  46
  47 * LICENSE* : licenses of the various components.
  48 * README* : RTFM
  49 * agl-layers-overview.md: references to the various layers that make up AGL
  50 * `docs`: Contains files that support AGL documentation.
  51 * `meta-agl-bsp`: Contains adaptations for recipes and required packages
  52   to boot an AGL distribution on targeted hardware and emulation (i.e. QEMU).
  53 * `meta-agl-core`: This is the core layer with essential recipes and the distro.
  54 * `meta-agl-core-test`: recipes supporting qa images (separate layer due to external dependencies)
  55 * `meta-agl-ic`: Instrument Cluster platform
  56 * `meta-agl-ivi`: IVI platform
  57 * `meta-netboot`: Contains recipes and configuration adjustments to allow network
  58   boot through network block device (NBD) since network file system (NFS) does not
  59   support security labels.
  60 * `meta-pipewire`: Configuration and recipes supporting pipewire as audio manager
  61 * `scripts`: AGL development setup and support scripts.
  62 * `templates`: Base, feature, and machine templates used in the AGL development
  63   environment.
  64
  65 ## Packagegroups
  66
  67 This section describes the AGL
  68 [packagegroup](https://docs.yoctoproject.org/dev-manual/common-tasks.html#customizing-images-using-custom-package-groups)
  69 design:
  70
  71 ### core non-ui packagegroups
  72 * meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-core-connectivity.bb
  73 * meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-core-devel.bb
  74 * meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-core-security.bb
  75 * meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-core-os-commonlibs.bb
  76
  77 ### graphical subsystem
  78 * meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-profile-graphical.bb
  79 * meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-graphical-multimedia.bb
  80 * meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-graphical-weston.bb
  81
  82 ### image-related packagegroups
  83 * meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-core-boot.bb
  84 * meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-image-boot.bb
  85 * meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-image-minimal.bb
  86
  87 ### QA/Test related packagegroups
  88 * meta-agl-core-test/recipes-test/packagegroups
  89 * meta-agl-core-test/recipes-test/packagegroups/packagegroup-agl-test.bb
  90
  91 ## Images
  92
  93 ### (Barely) bootable image
  94 * meta-agl-core/recipes-platform/images/agl-image-boot.bb
  95
  96 ### minimal image and SDK (console)
  97 * meta-agl-core/recipes-platform/images/agl-image-minimal.bb
  98 * meta-agl-core/recipes-platform/images/agl-image-minimal-crosssdk.bb
  99
 100 ### weston-based image for re-use
 101 * meta-agl-core/recipes-platform/images/agl-image-weston.bb
 102
 103 ### image for use in the YP autobuilder
 104 * meta-agl-core/recipes-platform/images/agl-image-core-autobuilder.bb
 105
 106 ### image with extra QA tooling (e.g. to run LTP)
 107 * meta-agl-core-test/images/agl-image-minimal-qa.bb
 108
 109
 110
 111 **Note:** For update details on this page please refer
 112
 113 <https://git.automotivelinux.org/AGL/meta-agl/tree/meta-agl.md>