Transfer Of Floppy Boot Sector To Hard Disk

Hello everybody,
I have a 486 machine which boots from a floppy. The floppy doesnt
contain an OS, but instead contains the program that the machine is
destined to run. (CNC cutting). (I don't have the source for the
program).

I want to make the machine boot from a hard disk, instead of the
floppy.

I have followed these steps:
1) I installed ms-dos on a hard disk and made sure that the machine can
boot from the hard disk.
2) I copied all the files from the floppy to the hard disk
3) From the boot sector of the floppy (FAT12), I took only the boot
code (offset 3Eh, 450bytes) and copied over the boot code of the hard
disk (FAT16).

Unfortunatelly this hasn't worked. I get "no operating system found"
when trying to boot from the hard disk. This is the message that is
hard coded in the boot code - and it is actually written in German.
Is it necessary to disassemble the boot code, or is there something
that I am missing here?

.

Relevant Pages

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  • Re: Transfer Of Floppy Boot Sector To Hard Disk
    ... I have a 486 machine which boots from a floppy. ... I want to make the machine boot from a hard disk, ... I installed ms-dos on a hard disk and made sure that the machine can ... but if you're seeing named files - more than one - then whatever runs after boot must have support for a FAT12 file system. ...
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  • Re: Transfer Of Floppy Boot Sector To Hard Disk
    ... I have a 486 machine which boots from a floppy. ... I want to make the machine boot from a hard disk, ... I installed ms-dos on a hard disk and made sure that the machine can ... hard coded in the boot code - and it is actually written in German. ...
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