Tried to upload DATA to SPIFFS with data upload in IDE1.18.9 (since IDE2 still doesn't support it), didn't work... think it wants the DFU port, and that's not available in 1.18.9
So I tried to run the SPIFFS-test example, in IDEs 1.18.9 and 2.11 and 2.12 nightly, but it keeps saying "SPIFFS Mount Failed".
Anybody got this working? Or could give a clue why it isn't working?
SPIFFS is currently deprecated and may be removed in future releases of the core. Please consider moving your code to LittleFS. SPIFFS is not actively supported anymore by the upstream developer, while LittleFS is under active development, supports real directories, and is many times faster for most operations.
I am not saying dont use spiffs the article is for reference only