id summary reporter owner description type status component version resolution keywords cc guest host 9062 No serial port on guest Win 7 64 bit (host Kubuntu 10.10 64 bit) Turtlesoup "There is no serial port in the Win 7 64 bit guest available. Host is Kubuntu 10.10 64 bit. Settings are: Settings -> SerialPorts -> Port1: Enable Serial Port, Port Number: COM1, Port Mode: Host Device, Port_FilePath: /dev/ttyS0. VBox and Extension Version is 4.0.8. Working serial port on host is COM1. Also works with guest Win XP 32 bit, so it must be a problem with the guest Win 7 64 bit." defect closed uart VirtualBox 4.0.8 duplicate COM, Serial Port, Win 7 64 bit Windows Linux