If I were to do a factory reset after upgrading the firmware, what would happen if I restored a backup of the jffs files? In particular, would my Wireless MAC Filter list be restored and would any scripts I had installed on my USB Flash Drive still work? It sounds too good to be true, so I'm guessing that the answer is no.
If you perform a full reset to factory defaults after flashing to newer/different firmware and then use a saved backup config file, it will effectively be the same as doing a 'dirty' upgrade in the first place.
And it will also carry forward any issues that may arise between the old firmware and the old firmware and their respective and expected defaults, variables, and assumptions of the various settings in each of them.
The answer is yes, it will transfer everything. But in many cases, it is too good to be true (if it carries with it the issues hinted at in the paragraph above).
I was only talking about saving/restoring the jffs files, not a configutation file as such. Are you saying that these options would both have the same result?
