You need to have a preferably new blank floppy disk for making the emergency disk. Even if does silly at the beginning, it may come very handy years later. I used it much when having A1200 with CD-ROM connected through the PCMCIA slot, which requires additional drivers. These drivers were installed on the Emergency boot.
Later with only emergency boot and no hard drive, I was able to connect to Internet from the A1200 and browse, chat, FTP and other stuff with only 4 MB additional FAST RAM (6 MB total) and a 56K modem.
