When I click on the drive in Spacefm it says:
Handler Not Found
No handler is configured for this device type, or no mount command is set. Add a handler in Settings|Device Handlers or Protocol Handlers.
Do I need to add something else to be able to open USBs or CD/ROMs?
Check http://ignorantguru.github.io/spacefm/s … ml#devices
You might have to install udevil and enable kernel polling.