on a 2503 router with software 12.3(9) I would like to uprade the OS. But when I try "copy tftp: ?" I don't see any flash, only "nvram:, null:, "running-config, startup-config and system:". On the other hand I am able to do a "dir flash:". Even a "copy flash: tftp:" is possible. So how do I upgrade this router?
Regards, Christoph Gartmann