meta-agl.md

   1 ## Introduction
   2
   3 The `meta-agl` layer provides the minimal set of software
   4 to boot an AGL Distribution system.
   5 You use this layer as the minimal core on which to build AGL profiles.
   6
   7 **NOTE:** The `meta-agl` layer does not include a reference UI.
   8   The reference UI is included as part of the
   9   [`meta-agl-demo`](./meta-agl-demo.html) layer.
  10
  11 ## Sub-Layers
  12
  13 The `meta-agl` layer itself contains many sub-layers and files.
  14 Following is a "tree" look at the layer:
  15
  16 ```
  17 |-- LICENSE
  18 |-- LICENSE.GPL-2.0-only
  19 |-- LICENSE.MIT
  20 |-- README-AGL.md
  21 |-- README.md -> meta-agl.md
  22 |-- agl-layers-overview.md
  23 |-- docs
  24 |-- meta-agl-bsp
  25 |-- meta-agl-core
  26 |-- meta-agl-core-test
  27 |-- meta-agl-ic
  28 |-- meta-agl-ivi
  29 |-- meta-agl.md
  30 |-- meta-app-framework
  31 |-- meta-netboot
  32 |-- meta-pipewire
  33 |-- scripts
  34 `-- templates
  35 ```
  36
  37 This list provides some overview information on the files and sub-layers
  38 in `meta-agl`:
  39
  40 * LICENSE* : licenses of the various components.
  41 * README* : RTFM
  42 * agl-layers-overview.md: references to the various layers that make up AGL
  43 * `docs`: Contains files that support AGL documentation.
  44 * `meta-agl-bsp`: Contains adaptations for recipes and required packages
  45   to boot an AGL distribution on targeted hardware and emulation (i.e. QEMU).
  46 * `meta-agl-core`: This is the core layer with essential recipes and the distro.
  47 * `meta-agl-core-test`: recipes supporting qa images (separate layer due to external dependencies)
  48 * `meta-agl-ic`: Instrument Cluster platform
  49 * `meta-agl-ivi`: IVI platform
  50 * `meta-app-framework`: Configuration and recipes supporting the AGL Application
  51   Framework.
  52 * `meta-netboot`: Contains recipes and configuration adjustments to allow network
  53   boot through network block device (NBD) since network file system (NFS) does not
  54   support security labels.
  55 * `meta-pipewire`: Configuration and recipes supporting pipewire as audio manager
  56 * `scripts`: AGL development setup and support scripts.
  57 * `templates`: Base, feature, and machine templates used in the AGL development
  58   environment.
  59
  60 ## Packagegroups
  61
  62 This section describes the AGL
  63 [packagegroup](https://yoctoproject.org/docs/2.4.4/dev-manual/dev-manual.html#usingpoky-extend-customimage-customtasks)
  64 design:
  65
  66 ### core non-ui packagegroups:
  67 meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-core-connectivity.bb
  68 meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-core-devel.bb
  69 meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-core-security.bb
  70 meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-core-os-commonlibs.bb
  71
  72 ### graphical subsystem
  73 meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-profile-graphical.bb
  74 meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-graphical-multimedia.bb
  75 meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-graphical-weston.bb
  76
  77 ### image-related packagegroups
  78 meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-core-boot.bb
  79 meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-image-boot.bb
  80 meta-agl-core/recipes-platform/packagegroups/packagegroup-agl-image-minimal.bb
  81
  82 ### QA/Test related packagegroups
  83 meta-agl-core-test/recipes-test/packagegroups
  84 meta-agl-core-test/recipes-test/packagegroups/packagegroup-agl-test.bb
  85
  86 ## Images
  87
  88 ### (Barely) bootable image
  89 meta-agl-core/recipes-platform/images/agl-image-boot.bb
  90
  91 ### minimal image and SDK (console)
  92 meta-agl-core/recipes-platform/images/agl-image-minimal.bb
  93 meta-agl-core/recipes-platform/images/agl-image-minimal-crosssdk.bb
  94
  95 ### weston-based image for re-use
  96 meta-agl-core/recipes-platform/images/agl-image-weston.bb
  97
  98 ### image for use in the YP autobuilder
  99 meta-agl-core/recipes-platform/images/agl-image-core-autobuilder.bb
 100
 101 ### image with extra QA tooling (e.g. to run LTP)
 102 meta-agl-core-test/images/agl-image-minimal-qa.bb