Told the truth, focusing on the type and amount of work done, my specialisation and things I've learnt outside my specialisation during the time there. Didn't leave the negative bits out, but added on what could have been done better and what I did to minimise the negative effects. Adding on personal interests and how those worked out for the internship also helped.
It was supposed to be a 2 panel interview but manager was so busy could not attend it even if he is the one who scheduled it. In the end was left to the senior tech guy to do the interview alone. The interviewer himself based on his facial expression was insincere. There are many ways of doing things in linux and if your answer didn't fit his he will challenge you even if you are correct. He never mentioned if his questions were in relation to the role. Overall unpleasant and lousy experience, full of negativity coming from the person.