3.11 OS from floppy = Software bug of type 11h

Hi, i've been trying to boot OS 3.11 from floppy disk on a 3.03 rom mpc without success.

Here's a pic of what happens :




I operate in the following way :

- Format the floppy on PC in FAT mode
- Drag directly the MPC.SYS from the zip archive to the floppy drive or
- Copy the MPC.SYS file to the floppy drive icon or
- Copy the MPC.SYS file to the floppy disk opened in explorer (empty window)
- Insert floppy disk and power on the MPC

- Floppy's are HD or 2HD, 1.44MB
- They are not new but I have tried on 10 different disk brands
- The OS source is akaipro.com for 3.11 or mpc3000.com for 3.16


Any help would be much appreciated, thanks

You need os 3.11 installed in ROM form to boot from floppy os upgrade

Right. Thanks for answering.