Former media mogul Conrad Black quietly left a federal prison in the blazing central Florida heat Wednesday, free on bond after serving just two years of a 6 1/2-year sentence for defrauding investors, officials said.

Earlier in the day, U.S. District Judge Amy St. Eve in Chicago set his bond at $2 million and ordered him not to leave the country, pending the outcome of the appeal of his 2007 conviction. She set a Friday court hearing for the former Hollinger International Inc. chairman to hear conditions of his release and also was considering a request from Black’s attorneys to let him return to Canada, where he owns a home in Toronto.