Create the system drive on the small disk/floppy, and use bcdboot to put your boot files on the the newly created drive on the small disk. Add a bootsector with bootsect. Change the bootmgr device to boot. Boot from small disk.
Create the system drive on the small disk/floppy, and use bcdboot to put your boot files on the the newly created drive on the small disk. Add a bootsector with bootsect. Change the bootmgr device to boot. Boot from small disk.