Virtual Device Serial0 Will Start Disconnected -
Select this if debugging (commonly used with tools like WinDbg). Ensure "This is the server" is checked if this is the primary debugging machine. Ensure Connect at power on is checked. Method C: Editing the .vmx File Directly
For advanced users needing the port to start connected (e.g., for debugging or specific hardware mapping), ensure these lines exist in your .vmx file: serial0.present = "TRUE" serial0.startConnected = "TRUE"
Locate (or the port corresponding to serial0 ) in the hardware list. virtual device serial0 will start disconnected
No. Many pre-built Linux appliances include a virtual serial port for legacy console access. The message is cosmetic.
What Does "Virtual Device Serial0 Will Start Disconnected" Mean? Select this if debugging (commonly used with tools
A VMware expert explained: "To get rid of the message, edit the .vmx file manually and remove 3 lines (two referencing serial0 and one additional one referencing 'thinprint')."
The serial0 warning is the cause. Look for other errors like disk boot failure, corrupted VMX, or missing virtual disk files. The serial message is only informational. Method C: Editing the
The "serial0" port was the only way into the legacy kernel of the "Sentinel" project—a massive, decades-old encryption engine the company had bought for pennies and now couldn’t crack. Without that virtual serial connection, the kernel stayed isolated in its own private, silent void.
Once the most likely cause has been identified, you can follow these targeted solutions.
If you want to keep the serial port configuration for future use but stop the boot-time warning, you can tell the hypervisor not to initialize it during startup. Open the virtual machine . Select the Serial Port device.