Yeah I was legitimately confused why there was a problem until I realized that author had installed the new OS to the same server as the old one. I can't unders

Yeah I was legitimately confused why there was a problem until I realized that author had installed the new OS to the same server as the old one. I can't understand why that was done. Previously I wouldn't even have called your method of moving services over one by one while keeping the old setup available "best practice" because I thought it was so obvious. I hope the original author realized that this should really be what is learned from the story.