Virtual Device Serial0 Will Start Disconnected

This message typically appears in VMware Workstation VMware Fusion

The virtual machine was created on an older server or a different computer that possessed physical serial hardware and was subsequently moved to a host that lacks it. How to Fix the Error (Step-by-Step) virtual device serial0 will start disconnected

Save the file, close the editor, and relaunch your VMware application to power on the VM. Conclusion This message typically appears in VMware Workstation VMware

Search for lines beginning with serial0 . You will typically see lines resembling the following: You will typically see lines resembling the following:

In the world of virtualization, "Serial0" refers to a virtual serial (COM) port assigned to your VM. This error occurs because the VM is configured to look for a physical or virtual serial port on the host machine that either or is currently in use by another application. Common scenarios include:

It is a common scenario for VMware Workstation, Fusion, and ESXi users: you power on a virtual machine, and the console alerts you with the message:

serial0.startConnected = "TRUE" serial0.fileType = "file" serial0.fileName = "nul"