Yes I’m using sudo ./weatherdisplay I’ve tried from USB0 to USB10 and still get the same answer. I’m using a Lacrosse 2310 with the Prolific adapter to convert to USB. As I also noted it is the same computer only using SATA selectable hard drives with different OS. In Win 7 it works fine and it is running on Com Port 6. Rebooting into the Linux Mint 18.3 hard drive and I keep getting the errors with the USB feed not being correct. Researching out on Linux Mint about TTY and USB ports and they state that it is zero based rather than one based so a Com Port one in Windows would be USB0. Going by that info it should be Com port 5 or USB5 but lsusb shows it as USB0. Also is that info case sensitive?