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Right-click the VM in your library and select . Locate Serial Port 1 (or Serial0) in the hardware list. Click the Remove or "X" icon. Click OK and power the VM back on.
The port is configured as a pipe for debugging, but the pipe is not active.
The VM configuration is looking for a physical serial port ( COM1 , COM2 , etc.) on your modern host computer, but modern motherboards rarely feature these legacy ports. virtual device serial0 will start disconnected
. Unless your workflow specifically requires a serial console or virtual printing, you can typically dismiss the message and the VM will function normally. for editing the file on your specific operating system? Virtualization Architect Technical Support Engineer
Look for lines like:
To this:
To appreciate why this message appears, it helps to understand the virtual serial port's role. Serial ports have been a staple of computer communication for decades, and virtualization platforms replicate this functionality to enable legacy applications, hardware communication, and low‑level system interaction. VMware supports three primary connection types for virtual serial ports: Right-click the VM in your library and select
QEMU scenario:
Open it in a text editor and search for all lines beginning with serial0. : Click OK and power the VM back on
If you want to keep the device but stop the warning, uncheck Connect at power on Broadcom Community Option 2: The Manual Fix (Editing the .vmx file)
Right-click the VM in your library and select . Locate Serial Port 1 (or Serial0) in the hardware list. Click the Remove or "X" icon. Click OK and power the VM back on.
The port is configured as a pipe for debugging, but the pipe is not active.
The VM configuration is looking for a physical serial port ( COM1 , COM2 , etc.) on your modern host computer, but modern motherboards rarely feature these legacy ports.
. Unless your workflow specifically requires a serial console or virtual printing, you can typically dismiss the message and the VM will function normally. for editing the file on your specific operating system? Virtualization Architect Technical Support Engineer
Look for lines like:
To this:
To appreciate why this message appears, it helps to understand the virtual serial port's role. Serial ports have been a staple of computer communication for decades, and virtualization platforms replicate this functionality to enable legacy applications, hardware communication, and low‑level system interaction. VMware supports three primary connection types for virtual serial ports:
QEMU scenario:
Open it in a text editor and search for all lines beginning with serial0. :
If you want to keep the device but stop the warning, uncheck Connect at power on Broadcom Community Option 2: The Manual Fix (Editing the .vmx file)