Save the file, close the editor, and relaunch your VMware application to power on the VM. Conclusion
Alternatively, go to in the VMware Workstation/Player menu, navigate to Devices , and ensure "Enable virtual printers" is checked if you do want to use this feature. 3. Adjust the .vmx Configuration
Alternatively, to remove it entirely via text, delete all lines starting with serial0 .
If you’d like, I can guide you through configuring a named pipe for advanced debugging, or help with mapping the physical port to a host device. Let me know which you need! virtual device serial0 will start disconnected
When you see this error, it means the virtual serial port is configured to be active ("Connect at power on"), but VMware cannot successfully connect to the resource intended for that port.
Emulating network switches and routers (e.g., Cisco IOS images via GNS3) that utilize virtual serial interfaces for console access.
: When connecting two routers via their serial interfaces, ensure you have selected the correct cable type. Use the "Manual" cable connection and pick a "Serial DCE" cable for the device that will provide clocking. Save the file, close the editor, and relaunch
Always read the console boot messages. That "disconnected" line is not a warning; it is a direct status report.
Save the file and reload the VM configuration in your hypervisor interface. When Do You Actually Need Serial0?
This article applies to VMware Workstation Pro/Player 15–17, VMware Fusion 11–13, and ESXi 6.5 through 8.0. For older versions, the behavior and fix remain fundamentally the same. Adjust the
If you do not need the serial port, or if it is misconfigured, telling the machine not to connect it at startup will eliminate the error. Open the virtual machine's (VM -> Settings). Click on Add/Hardware and select Serial Port . Uncheck the option "Connect at power on" . Click OK and restart the VM. 3. Remove the Unused Serial Port
Alternatively, if you want the device present but disconnected at boot time, edit the file to read: serial0.present = "TRUE" serial0.startConnected = "FALSE" Use code with caution.
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For the vast majority of users, simply from the VMware Hardware settings page is the fastest, safest, and most effective solution to restore a clean, automated boot experience.