I have a debian 9 live bootable usb with non-free firmware. I am able to find my wifi network, but I cannot connect as I am missing the necessary firmware (ralink). I do not have an ethernet cable, so I cannot directly download the firmware via the terminal on debian. I need to copy the firmware onto a usb drive from windows and then install the firmware from the usb using the debian terminal.
I have searched for tutorials, but every tutorial (that I have found) assumes that the user is downloading the firmware from a linux os.
In short, this is what I am asking: If I have two files in my downloads folder on Windows, the live iso and the firmware .deb file, how do I create a bootable debian live usb with persistence and the ralink firmware file so that I can use wifi?
I originally burned the iso to the usb with win32 disk imager, and I have EaseUS Partition Master to create partitions if needed.