Virtual Device Serial0 Will Start Disconnected Patched

VMware displays this message when a virtual serial port (COM port) is enabled in the VM configuration, but the physical host resources it points to are missing, disconnected, or busy. The most common triggers include:

No. Many pre-built Linux appliances include a virtual serial port for legacy console access. The message is cosmetic.

Parameter "serial0.fileType" has an invalid value "Thinprint 10 Nov 2023 — virtual device serial0 will start disconnected

If serial0 is configured to use a named pipe or a TCP network socket, VMware must successfully create or connect to that endpoint. If the pipe name is incorrect, the server process is not listening, the TCP port is blocked, or the firewall is interfering, the connection fails. For example, VMware Fusion users have reported: "Virtual device serial0: File … exists, but no server is listening to it" . In network configurations, ensuring the correct firewall rule set is added in ESXi is critical.

Here’s a draft feature covering the behavior where virtual device serial0 will start disconnected . You can use this in release notes, documentation, or a changelog. VMware displays this message when a virtual serial

If your environment relies on virtual serial ports for kernel debugging or serial logging, document the exact connection parameters (baud rate, pipe names, TCP ports). This ensures that future upgrades do not break your debugging workflow.

Here are the most effective solutions, ordered from simplest to most complex. 1. Disable Virtual Printing (Most Common Solution) The message is cosmetic

complaining that it's been retired. Deleting the "Printer" hardware from your VM settings is the fastest way to get a clean, error-free boot. specific platform like LinkedIn or a technical documentation site?

Search for lines starting with serial0 and either delete them or change their values to FALSE : serial0.present = "FALSE"