A detailed description of how to write boot blocks on floppy disks
You need to learn how to use trackdisk.device. I strongly advise you not to bypass trackdisk; the requirements for reading floppy disks are complex, and you must know the permitted mechanical deviations; The trackdisk drive code is really, really good and deals with errors better than anything else. The published books on how to "encode at the" pure metal "level for Amiga (and, in particular, the book on using floppy disks directly) have so many errors and erroneous assumptions that my copy had a forest with linden marking errors.
Note bene: I was the person at Commodore who completely rewrote trackdisk for AmigaOS 2.0.
If you are talking a regular AmigaOS application, a startup script will be loaded on the disk to load the disk and launch the application (plus the minimum AmigaOS file set), as well as the icon / executable file, run it if Amiga boots from another disk or HD. Hunting and finding information on creating a boot disk for Amiga.
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