# AGL SDKs

To build your AGL services or AGL applications using XDS,
you must install a Software Development Kit (SDK) that
matches your target/board.

An SDK is a package that includes all the tools you need
to cross-build and cross-debug your service or application.
You install an SDK by running the SDK Installer.

You can build an AGL SDK Installer for your board or you can download
a pre-built installer.

This section describes how you can download a pre-built SDK
Installer using either the command line or the XDS Dashboard.
For information on how to build an SDK Installer, see the
"[Download or Build Your SDK Installer](../../../../getting_started/reference/getting-started/app-workflow-sdk.html)"
section.

<!-- section-note -->
**NOTES:**
- In order to use the command line or the XDS Dashboard
  to download an SDK Installer, you must
  have the XDS Client set up in your toolchain (i.e. 'xds-cli').
  If you did not install 'xds-cli', see the
  "[Client Part](client-part.html)" section for instruction on how
  to install XDS UI.

- See the
  "[xds-server](../part-2/1_xds-server/0_abstract.html)" chapter
  for more information on SDK management.
<!-- end-section-note -->

## Command Line Operations

This section describes how to download and install an SDK,
abort an installation, install an SDK from a local directory,
and view all installed SDKs.

### Download and Install an SDK Using the Command Line

Use the following commands to choose and install a pre-built SDK
Installer:

```bash
# List all available SDKs
xds-cli sdks ls -a

List of available SDKs:
ID            NAME                                            STATUS          VERSION         ARCH
ec15afe0      AGL-release-eel-4.99.4-raspberrypi3             Not Installed   4.99.4          armv7vehf-neon-vfpv4
944d2d5a      AGL-snapshots-master-latest-intel-corei7-64     Not Installed   4.99.3+snapshot corei7-64
cf3a4365      AGL-release-dab-4.0.2-qemux86-64                Not Installed   4.0.2           corei7-64
d65fe750      AGL-release-eel-latest-qemux86-64               Not Installed   4.99.3          corei7-64
a0ae663d      poky-agl-corei7-64-3.99.1+snapshot              Installed       3.99.1+snapshot corei7-64
87f0400b      AGL-release-dab-3.99.3-m3ulcb-nogfx             Installed       3.99.3          aarch64
8c2f2841      AGL-release-dab-4.0.2-dragonboard-410c          Not Installed   4.0.2           aarch64
...

# Download and Install an SDK
xds-cli sdks install d65fe750

Installation of 'AGL-release-eel-latest-qemux86-64' SDK successfully started.
Downloading poky-agl-glibc-x86_64-agl-demo-platform-crosssdk-corei7-64-toolchain-4.99.5.sh ...
--2018-01-02 11:22:23--  https://download.automotivelinux.org/AGL/release/eel/latest/qemux86-64/deploy/sdk/poky-agl-glibc-x86_64-agl-demo-platform-crosssdk-corei7-64-toolchain-4.99.5.sh
Resolving download.automotivelinux.org (download.automotivelinux.org)... 199.19.213.77
Connecting to download.automotivelinux.org (download.automotivelinux.org)|199.19.213.77|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 665996704 (635M) [application/x-sh]
Saving to: ‘/tmp/tmp.wuQzLdImCS/poky-agl-glibc-x86_64-agl-demo-platform-crosssdk-corei7-64-toolchain-4.99.5.sh’

     0K .......... .......... .......... .......... ..........  0% 82,7K 2h11m
    50K .......... .......... .......... .......... ..........  0% 89,1K 2h6m
   100K .......... .......... .......... .......... ..........  0% 82,0K 2h8m
...
 50300K .......... .......... .......... .......... .......... 99% 2,15M 0s
 650350K .......... .......... .......... .......              100% 4,04M=10m35s

2018-01-02 12:17:06 (1024 KB/s) - ‘/tmp/tmp.CWyEj3z76Q/poky-agl-glibc-x86_64-agl-demo-platform-crosssdk-corei7-64-toolchain-4.99.5.sh’ saved [665996704/665996704]

Automotive Grade Linux SDK installer version 4.99.5
===================================================
You are about to install the SDK to "/xdt/sdk/poky-agl/4.99.5/corei7-64". Proceed[Y/n]? Y
Extracting SDK....................................................................................................................done
Setting it up...done
SDK has been successfully set up and is ready to be used.
Each time you wish to use the SDK in a new shell session, you need to source the environment setup script e.g.
 $ . /xdt/sdk/poky-agl/4.99.5/corei7-64/environment-setup-corei7-64-agl-linux

SDK ID d65fe750-d3a7-38f5-83d8-3d3806054f8d successfully installed.
```

### Abort an Installation that is in Progress

To abort an ongoing installation (i.e. the `xds-cli sdks install d65fe750`
in this example), use
the `ctrl-C` key sequence. `Ctrl-C` only stops the XDS Client (`xds-cli`).
The download or installation process running in the background
is not stopped.

In such cases, the `xds-cli sdks ls` command results in an
`Installing` appearing in the STATUS column for all running installations. 

If for some reason you need to abort, use the `sdks abort` command:

```bash
xds-cli sdks abort -id d65fe750
```

### Install an SDK Using a Local SDK Package or File

If you have an SDK Installer that is already local to your system,
you can use the command line to install it from your local directory:

```bash
xds-cli sdks install --file $HOME/xds-workspace/sdks/poky-agl-glibc-x86_64-agl-demo-platform-crosssdk-corei7-64-toolchain-4.99.5.sh
```

<!-- section-note -->
**NOTE:**
Installation based on a local SDK Installer is only supported when the
SDK Installer is in the `$HOME/xds-workspace/sdks` directory.
<!-- end-section-note -->

### List Installed SDKs

To list the installed SDKs, use the following command:

```bash
xds-cli sdks ls

List of installed SDKs:
ID       NAME                                            STATUS          VERSION ARCH
e45ac787 AGL-corei7-64-4.99.5+snapshot                   Installed       4.99.5  x86_64
d65fe750 AGL-release-eel-latest-qemux86-64               Installed       4.99.3  corei7-64
```

## Install an SDK Using the XDS Dashboard

Follow these steps to locate, download, and install an SDK
using the XDS Dashboard:

1. Open the XDS Dashboard in a Web Browser and select
   `SDKs` in left-hand menu.

2. Switch to `SDKs MANAGEMENT` view.
   Following is an example:

   ![](../part-1/pictures/xds-dashboard-sdks-mgt.png){:: style="margin:auto; display:flex"}

3. Use filter boxes to find the SDK you want to install.

4. Click on the "plus" icon in the "Actions" column to
   start the installation.

   The SDK Installer downloads and the installation process begins.
   In can take several minutes for the installation to complete.
   Following is an example of the output:

   ![](../part-1/pictures/xds-dashboard-sdks-install.png){:: style="margin:auto; display:flex"}

**NOTE:**<\br>
If for some reason you need to abort an ongoing SDK installation,
you can do so by clicking the `CANCEL` button.