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Serial0 Will Start Disconnected — Virtual Device

typically occurs in VMware Fusion or Workstation after an update (specifically VMware Fusion 13.5 Workstation 17.5 ) because support for virtual printing has been discontinued

If you actually need the serial port for kernel debugging or specialized hardware, ensure the backing connection is correct. virtual device serial0 will start disconnected

Or to remove completely:

When a software like VMware or GNS3 powers on a virtual machine, it attempts to establish a connection for all virtual hardware. The message appears when it cannot find or open the specific device or file assigned to that serial port, so the virtual device will remain in a "disconnected" state. It is frequently accompanied by a related message: The virtual printing feature is globally disabled on this system . typically occurs in VMware Fusion or Workstation after

This alert is triggered by specific hardware mismatches or underlying software configuration updates within the hypervisor infrastructure: It is frequently accompanied by a related message: