Usage on Linux

Generate secure variant from any:

sudo bash securize.sh system.img

The output for above would be s-secure.img.

Generate A64 AB VNDKLite from A64 AB:

sudo bash lite-adapter.sh 32 system.img

Generate ARM64 AB VNDKLite from ARM64 AB:

sudo bash lite-adapter.sh 64 system.img

Generate ARM A-only from ARM AB (deprecated since Android 12):

sudo bash run.sh 32 system.img

Generate ARM64 A-only from ARM64 AB (deprecated since Android 12):

sudo bash run.sh 64 system.img`

The output for above would be s.img.

Usage on Windows

Windows users (with fairly recent hardware and Windows version) can run these scripts on Docker, without having to set up a full Ubuntu installation/VM. For people who are new to Docker, below are crude steps to e.g. securize an image with it:

1. Install Docker Desktop. When prompted to select between WSL2 or Hyper-V backends, choose WSL2.
2. Make sure Docker is in Linux Container mode (it should be by default) - right click the tray icon, one of the menu items should say "Switch to Windows Containers", don't click it.
3. Pick/make a folder (e.g. C:\out) and put your GSI image there (e.g. system.img).
4. Only if on Hyper-V backend: open Docker Desktop - Settings - Resources - File sharing and add the above folder. This settings won't be present on WSL2 backend.
5. Open Command Prompt (cmd) and run:

docker pull ubuntu
docker run -it -v C:\out:/out --privileged ubuntu

This starts a Ubuntu container and mounts C:\out to /out inside it.

6. You should now be in a privileged (#) Ubuntu terminal. Run:

apt update
apt install -y git xattr
git clone https://github.com/AndyCGYan/sas-creator
cd sas-creator
bash securize.sh /out/system.img
mv s-secure.img /out
exit

You can now flash the securized image C:\out\s-secure.img.

Note: intentionally not using Dockerfile.