I'm trying to find out if it's possible to use the firmware update plugin to update the SKR v1.3 firmware over internal tx/rx connections instead of USB?
What did you already try to solve it?
I have install USBMount and configured according to the directions, but it does not appear to mount the SD card on the pi under /media/usb.
Additional information about your setup
OctoPrint Version 1.3.12
OctoPi Version 0.17.0
SKR v1.3 board running Marlin 2.0 firmware
Creality Ender 5 Pro