If you are in Ethiopia then you can seek advice on passport and other consular assistance at the Australian Embassy in Ethiopia located in Addis Ababa. Note that they will be able to assist you with a birth registration as well as death registration and assist with a temporary passport if you have lost yours.
Africa
Australian Embassy in Egypt
Visiting Egypt and in need of assistance with a lost passport, then contact the Australian Embassy in Egypt. Note that there is a limit to consular assistance and you need to read what they can and cannot provide. The Embassy can also provide you with assistance with birth registration, issue a passport and also assist with death registration.