While this error rarely prevents the guest operating system from booting, it introduces annoying startup delays and indicates a misconfiguration in your virtual hardware settings.
This message typically appears in or VMware Fusion when a virtual machine (VM) is configured to look for a serial port that is unavailable, invalid, or belongs to a legacy feature no longer supported. Why it Happens
If you select "Physical serial port" but leave the "Connect at power on" box , you will see this message. virtual device serial0 will start disconnected
-chardev socket,id=serial0,path=/tmp/serial.sock,server=on,wait=off \ -device isa-serial,chardev=serial0
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 While this error rarely prevents the guest operating
In VMware Workstation, this message is a near-ceremony of system startup, and understanding its nuances is key.
Another application on your host computer is already using the serial port. -chardev socket,id=serial0,path=/tmp/serial
Navigate to the folder on your host machine where the VM files are stored. Locate the file ending in .vmx (e.g., Windows10.vmx ). Open the file using a text editor like Notepad or VS Code. Search for lines beginning with serial0. .
Open the .vmx file using a plain text editor like Notepad (Windows) or TextEdit/Nano (Mac/Linux).