esp-wroom-32 arduino sketch size

[allenpan]

Hello, i believe esp-wroom-32 has the additional 4MB SPI flash, how do i increase the usable space to have a bigger sketch?

i believe the only lavaliere 1310720 bytes or 1.28MB is due partitioning to allows OTA feature (one factory image, one running OTA image, and one download OTA image)

is there possibility to disable OTA and take full use of the 4MB for sketch? or did i mis-understanding something?

[WiFive]

https://github.com/espressif/arduino-esp32/issues/703