Android Boot Process Timeline

Android Startup - "INIT Process"

1. Create some folders and mount the device
2. Set up SELinux Policies
3. Initialize and start the property service
4. Parse the init.rc configuration file and start the zygote process

Android Startup - "System Server"

Bootstrap services

Core Services

Other Services

Android Startup - "ZYGOTE Process"

[References]
https://koharinn.tistory.com/463