Optional USB Device in Virtual Machine Manager

To make a USB Host Device optional on startup within KVM, edit the XML and add startupPolicy="optional" to the source node. This will ensure your usb stick, yubikey, or whatever, it won’t stop your VM from booting if it isn’t present.


<hostdev mode="subsystem" type="usb" managed="yes"> <source startupPolicy="optional"> <vendor id="0x1050"/> <product id="0x0402"/> </source> <address type="usb" bus="0" port="4"/> </hostdev>
Code language: HTML, XML (xml)

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