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# AAOS car AVD tools
This folder contains scripts to help you to build, run and share car AVD images. We intentailly k
eep this on the AOSP main trunk for vairous branches from Android 10.
## Download the tools
- To clone the tool only: git_clone_projects.sh
- Link it into an Android source tree, e.g.:
```
ln -s $HOME/avd/car/tools $ANDROID_BUILD_TOP/device/generic/car/tools
```
## Build an AVD image
This builds AOSP car x86_64 userdebug AVD.
```
. device/generic/car/tools/mk_car_avd.sh
```
## Pack an AVD image
The standard way to pack an AVD image is to build emu_img_zip target. Whereas this script is just for a quick validation on other host via Android Emulator during development. Which can pack necessary image files to $HOME/Downloads/x86_64
```
device/generic/car/tools/test_pack_avd_img.sh
```
* You can use it as an example to create your own script for an AVD target by pack_avd_img.sh.
* pack_avd_img.sh contains brief descriptions of each file needed.
* AVD device profile example: x86_64/devices.xml
* SDK addon xml example: aaos-sys-img2-1.xml
* You should edit the xml, e.g. ZIP_FILE_SIZE, SHASUM, zip url & etc. accordingly.
## Start an AVD
### New AVD config
To create a clean local AVD config and run with the latest Android Emulator engine from the SDK.
```
device/generic/car/tools/test_run_local_avd.sh
```
To run the existing AVD config.
```
device/generic/car/tools/run_local_avd.sh
```
### Multiple AVDs
run_local_avd.sh allows you to setup and run multiple AVDs. You can crease a script for each of them. e.g.
```
AVD_IMAGE_DIR=$HOME/avd/aosp_car_x86_64/x86_64 \
WORKDIR=$HOME/avd/aosp_car_x86_64 \
ABI="x86_64" \
$SCRIPT_DIR/tools/run_local_avd.sh
```
* Deleting the WORKDIR will let the script create it from scratch next time as the 1st run.
### Change the config
The default AVD config.ini are created as the following default settings at the 1st run. You can also change them at the 1st run, e.g.
```
ANDROID_SDK_ROOT="/Users/$USER/Library/Android/sdk" \
WORKDIR="$HOME/avd/aosp_car_x86_64" \
AVD_IMAGE_DIR="$HOME/avd/aosp_car_x86_64/x86_64" \
ABI="x86_64" \
DISPLAY_DENSITY=213 \
DISPLAY_WIDTH=1920 \
DISPLAY_HEIGHT=1080 \
RAM_MB=3584 \
./run_local_avd.sh
```
The AVD can also be changed by editing the AVD config.ini directily, e.g. at:
```
$WORKDIR/.android/avd/my_car_avd_x86_64.avd/config.ini
```
### Android Emulator startup options
You can append [Android Emulator Command-line startup options](https://developer.android.com/studio/run/emulator-commandline#common) as needed. E.g.
* to wipe user data: ./run_local_avd.sh -wipe-data
* to cold boot: ./run_local_avd.sh -no-snapshot-load
[Dauer der Verarbeitung: 0.2 Sekunden, vorverarbeitet 2026-06-27]