The jffs partition is part of the router's internal storage, it cannot be anywhere else. You need custom scripts enabled in the Merlin GUI to automatically run them.
Many thanks, Looks like this no longer works, The reason i wanted to change my wifi mac address is this, There is a lot of devices connected by wifi, Streaming, Games consoles, Smart tvs, phones, The amount of earache I would get when all these devices have to be reconnected to a new router.
The plan is to swap out an ageing N66u that is on johns f/w late at night so that no-one would notice, I wanted to pull that out and replace it with an RT-AC88u on latest merlin f/w.
My modem is a virgin superhub in modem only mode.
Any ideas you clever people?