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The launch_cvd command rus two commands assemble_cvd and run_cvd in its child processes. If both commands work as expected, the Android can launch successfully on Cuttlefish machine. The assemble_cvd command generates root file system images with overlay / qcow2 format, then the run_cvd command invokes the virtual machine manager (either Crosvm or QEMU) to boot the virtual machine with the generated images on virtual machine. The diagram below shows the Cuttlefish flow.
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