id summary reporter owner description type status component version resolution keywords cc guest host 3971 defaults for OS/2 guests should have a serial port enabled Julien Pierre "I'm using an OS/2 ACP2 guest, which is the only OS/2 version you officially support. The installer assumes there is always at least one serial port. If not, COM.SYS / VCOM.SYS will complain and prompt the user to press enter. This is admittedly a bug in the OS/2 installer, but it can easily be worked around in virtual box by simply adding a serial port. It would smooth out the OS/2 installation experience is that was one of the default setting for OS/2 guests. " defect closed uart VirtualBox 2.2.2 fixed other Windows