I mean mounting a folder as root. The "actual root" contains the payload (insert.bin) and relevant stuff, while the "virtual root" of the USB-drive functionality is mounted to a specifc folder.
I'm using the c_duck_v2_S001 firmware and was wondering wether it is possible to mount a specific folder on the SD as the USB drive's root. Now the actual root of the SD is used for this, making my payload (insert.bin) visible to my victim.