To get a terminal with root access on Recalbox, you have two options:
Connect via ssh to Recalbox, with the following credentials:
192.168.x.xrootrecalboxrootThe Terminal is included in the system. Open your Applications folder and go to the Utilities directory to find it.
Command line to run: ssh root@ip-address-of-your-Recalbox
The Terminal is provided as standard in the system. Its location depends on the Linux distribution you are using.
Command line to run: ssh root@ip-address-of-your-Recalbox
In the EmulationStation interface with a keyboard:
F4 to exit EmulationStation.Alt + F2 to get a terminal.