Start Disconnected !!top!!: Virtual Device Serial0 Will

If using a virtual serial pipe for debugging, the pipe name may be configured incorrectly. How to Fix "Virtual Device Serial0 Will Start Disconnected"

The easiest way to resolve this is to remove the legacy printer device that is causing the conflict. your virtual machine completely. Open the Virtual Machine Settings . Find Printer in the list of hardware devices. Select it and click Remove . Click OK and restart the VM. Option 2: For VMware Workstation Users

: If your VM was created in an older version, it still has "Printer" enabled in its settings, but the hypervisor no longer knows how to connect it. How to fix it Option 1: The Easy Way (Settings Menu) Power off the virtual machine. Virtual Machine Settings (or right-click the VM > Settings). Select the device from the hardware list.

Ensure the drop-down menu selects a valid, unallocated physical COM port on the current host.

Choose "Use output file" to log serial data to a file. virtual device serial0 will start disconnected

What Does "Virtual Device Serial0 Will Start Disconnected" Mean?

Choose "Use physical serial port on host" and ensure the correct COM port is selected.

The fastest and safest approach for desktop hypervisor users is to drop the unneeded device directly via the interface dashboard.

Uncheck or simply click Remove to delete the device entirely. 2. Resolve Virtual Printing Issues If the message specifically mentions virtual printing: In the VM Settings, look for the Printer device. If using a virtual serial pipe for debugging,

By understanding these common contexts and following the solutions provided, you can resolve this message quickly, demystify your logs, and maintain the stability of your virtual environments.

Parameter "serial0.fileType" has an invalid value "Thinprint

If the VM was created on a host with specific hardware (like a serial port) and moved to a host without one, this error occurs.

The error message typically appears in VMware environments when a virtual machine (VM) is configured with a serial port that it cannot properly initialize at startup . This is often a non-critical notification rather than a fatal error, but it can be annoying or indicate a configuration mismatch. Why This Happens Open the Virtual Machine Settings

The serial port is configured to send its output to a text log file (often used for debugging kernel crashes or gathering boot logs). If that file or its target directory was deleted, renamed, or lacks write permissions, the device fails to connect.

While this message rarely crashes a virtual machine, it is an annoyance that indicates a virtual hardware component (a serial port) cannot connect to its mapped physical or file destination. This article explains why this happens and provides actionable steps to fix it, often involving managing virtual printer settings or reconfiguring serial port mappings.

Under the section on the right, change the selection from "Use physical serial port on the host" to one of these alternatives: