Add custom build to Android studio emulator

[Bastien Chanot]

Hi everyone ! I hope you are all good =)

I am talking to you today for asking you something. I don't find any answer on internet, so maybe some of you got it !

I just built a AOSP build, successfully, and i wish to add it to my android studio emulator. (on Ubuntu !)

I tried to follow the link https://source.android.com/setup/create/avd, i followed the process correctly, added the link ( like this file:///home/bchanot/Custom/repo-sys-img.xml)

But when i am trying to create an AVD through the Android Virtual Device software, i cannot find the image i specified in link.

Can someone help me ?

Thanks for all and sorry if i am not clear enough, ask me some questions !

Best regards,
Bastien.

[Frank Yang]

For creating an AVD off your platform build, currently there aren't good happy paths for it yet (we're working on it). A stopgap solution is to setup some default AVD in Studio (doesn't matter what the name is, let's call it 'someAvd' for now), note the path to the system image in $ANDROID_SDK_ROOT/system-images/..../x86 or x86_64, in ~/.android/avd/someAvd.avd/config.ini

Then, we can produce a img.zip in the Android build tree that contains a set of files that can replace the files in any $ANDROID_SDK_ROOT/system-images/..../x86, x86_64 folder:

echo $ANDROID_PRODUCT_OUT
MYPACKEDIMG=$1

mkdir -p $MYPACKEDIMG/img
rm -rf $MYPACKEDIMG/img/*
cd $MYPACKEDIMG/img
cp $ANDROID_PRODUCT_OUT/system-qemu.img system.img
cp $ANDROID_PRODUCT_OUT/vendor-qemu.img vendor.img
cp $ANDROID_PRODUCT_OUT/ramdisk-qemu.img ramdisk.img
if [ -f $ANDROID_PRODUCT_OUT/kernel-ranchu-64 ]; then
    cp $ANDROID_PRODUCT_OUT/kernel-ranchu-64 kernel-ranchu-64
else
    cp $ANDROID_PRODUCT_OUT/kernel-ranchu kernel-ranchu
fi;
cp -rf $ANDROID_PRODUCT_OUT/data .
cp -rf $ANDROID_PRODUCT_OUT/advancedFeatures.ini advancedFeatures.ini
cp -rf $ANDROID_PRODUCT_OUT/userdata.img .
cp -rf $ANDROID_PRODUCT_OUT/encryptionkey.img .
cp -rf $ANDROID_PRODUCT_OUT/system/build.prop .
cp -rf $ANDROID_PRODUCT_OUT/VerifiedBootParams.textproto .
cp -rf $ANDROID_PRODUCT_OUT/source.properties .

cd ..
zip -1rq img.zip img/*
ls -l img.zip

After replacing the files there, wiping AVD data and launching the AVD 'someAvd' from Studio should work.

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[Frank Yang]

There are also scripts in AAOS that might help but may need to be adapted to the general case:

https://android.googlesource.com/device/generic/car/+/refs/heads/master/tools/

[utzcoz]

My code bases on AOSP 10. If I change the ramdisk part of above script with following content:

if [ -f $ANDROID_PRODUCT_OUT/ramdisk-qemu.img ]; then
cp $ANDROID_PRODUCT_OUT/ramdisk-qemu.img ramdisk.img
else
cp $ANDROID_PRODUCT_OUT/ramdisk.img ramdisk.img fi;

it will work for me. Thanks @Lingfeng Yang.

Another thing, if there doesn't exist source.properties, we can copy it from current AVD instance,

or execute "make sdk" to generate it to out/host directory.

[chanot....@gmail.com]

Hi again !
Link you gave me Lingfend Was usefull !

I just have a question, it seems to work only for build for 8.1 or after.
Do you know how to do it with 7.1 version ?

Because it missing a lot of file ^^" :

• cp: cannot stat '/external/AOSP_7/out/target/product/generic_x86_64/system-qemu.img': No such file or directory
• cp: cannot stat '/external/AOSP_7/out/target/product/generic_x86_64/vendor-qemu.img': No such file or directory
• cp: cannot stat '/external/AOSP_7/out/target/product/generic_x86_64/kernel-ranchu': No such file or directory
• cp: cannot stat '/external/AOSP_7/out/target/product/generic_x86_64/encryptionkey.img': No such file or directory
• cp: cannot stat '/external/AOSP_7/device/generic/goldfish/data/etc/userdata.img': No such file or directory
• cp: cannot stat '/external/AOSP_7/out/target/product/generic_x86_64/VerifiedBootParams.textproto': No such file or directory
• cp: cannot stat '/external/AOSP_7/out/target/product/generic_x86_64/config.ini': No such file or directory
• cp: cannot stat '/external/AOSP_7/out/target/product/generic_x86_64/advancedFeatures.ini': No such file or directory

Thanks for your answers !
Have a great day.
Best regards, Bastien