Virtual Device Serial0 Will Start Disconnected Now

A: Upgrades often deprecate or remove features. Fusion 13.5 removed ThinPrint entirely, causing the virtual printer serial port to be invalid. Similarly, upgrading Workstation may carry over outdated .vmx settings that trigger the warning.

The VM is connected to a named pipe that isn't currently active.

There are two main approaches to fixing this: removing the unused port or reconfiguring it. Solution 1: Remove the Serial Port (Recommended) virtual device serial0 will start disconnected

Or QEMU command line:

A: No. The warning is informational, not critical. The virtual machine will continue to operate normally, though the serial port may not be available until manually reconnected. Many users run production VMs for years with this warning appearing at every boot without any adverse effects. A: Upgrades often deprecate or remove features

The warning typically appears in VMware environments when a virtual machine (VM) is configured to include a serial port that the host system cannot currently find or access . This is common in newer versions of VMware software where certain legacy features, such as ThinPrint , have been discontinued. Common Causes

: This typically refers to a CD/DVD drive looking for an ISO file that has been moved or a physical drive that is empty. The VM is connected to a named pipe

To help narrow down the exact steps for your setup, let me know:

The error message is a common warning encountered by users of virtualization platforms like VMware Workstation, VMware ESXi, and Fusion. While it usually does not prevent a virtual machine (VM) from booting, it can be an annoying prompt that disrupts automation scripts or indicates a misconfigured hardware backdrop.

Are you using this serial port for or just trying to get a clean boot ?

QEMU scenario: