But these floppies won't mount on the iMac running MacOS 10.15, because modern MacOS doesn't support the old HFS disk format.

Here are the challenges with each method, and the questions we need answered:įloppy Drive: We can write from the Classic to a 3.5' 1.5MB floppy, which the Classic II formats in HFS format. We're trying to figure out how to get files from that old Mac to a modern iMac running MacOS 10.15 Catalina.Īs near as we can tell, we have two options: We have an old Macintosh Classic II (circa 1992!) in good working condition.