I have this thin client with non standard 64mb flash drive. I want to install ms-dos on it using usb and be able to boot flash hdd.

Using rufus doesnt work because usb is seen as drive1 and flash hdd seen as drive2, so I cant set flash hdd active in fdisk.

Using unetbootin also did not work. Although is boots from a virtual floppy A:\ drive, it still sees usb as drive1, so same problem.

Is there a program like rufus or unetbootin, that would make usb dos boot as A:\ floppy, but not seeing usb as drive1 ?

Just boot as A and see flash hdd as drive1 so I can set it as active in fdisk.

Thanks in advance.