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Table Of Contents
CHAPTER 13 Connecting Devices to Virtual Machines
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Under some circumstances, if a USB storage device is in use on the host (for example,
one or more files stored on the device are open on the host), an error appears in the
virtual machine when you try to connect to the device. You must let the host
complete its operation or close any application connected to the device on the host,
then connect to the device in the virtual machine again.
Disconnecting USB Devices from a Virtual Machine
Before unplugging a USB device or using the VM > Removable Devices menu to
disconnect it from a virtual machine, be sure it is in a safe state.
You should follow the procedures the device manufacturer specifies for unplugging
the device from a physical computer. This is true whether you are physically
unplugging it, moving it from host to virtual machine or moving it from virtual
machine to host.
This is particularly important with data storage devices (a Zip drive, for example). If you
move a data storage device too soon after saving a file and the operating system has
not actually written the data to the disk, you can lose data.
Human Interface Devices
USB human interface devices, such as the keyboard and mouse, are not handled
though the virtual machine’s USB controller. Instead, they appear in the virtual
machine as a standard PS/2 keyboard and mouse, even though they are plugged into
USB ports on the host.