A1200 not booting Disks

[MrZammler]

It might be that this particular 3.1 floppy isnt bootable. Which one of the set are you trying? Do you have another disk to try?

Try this: When you power-on the amiga, press both mouse buttons. You'll see the early startup menu. Check there that DF0: (the internal drive) is present, and that it has a lower boot priority than the hard drive.

[MrZammler]

If it said that it is not a dos disk, then most likely the disk has died (probably due to age)...

Only possibility now is to locate someone in your area or someone to send you an *ahem*copy*ahem* of his disk so you could install 3.1 to the hard disk.