This question already has an answer here:

I'm not going to have my passport for 3/4 weeks in Germany, but I was hoping to go, probably by bus, to Poland/France at some point. I will have a student card, scan of my passport and a certificate of German residence registration, and I'm not an EU citizen (Australian). What are my prospects? Would like to not get in trouble. Should I check the individual companies' passport control policies?

marked as duplicate by Tor-Einar Jarnbjo, David Richerby, Rory Alsop, bytebuster, Giorgio Apr 11 at 15:39

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.