Forwarding a flash drive without rebooting the guest OS in Proxmox?

Question

USB

Greetings.
Is it possible to pass USB devices to the guest OS without rebooting it?

Answer 1

That's not possible. Proxmox, when changing the USB forwarding settings, requires stopping the VM handler process to reread the mappings, as a result, the VM must not only be rebooted, but turned off and then turned on. However, you can forward a USB port to the machine instead of a specific device, then connecting / disconnecting a device in this USB port will get to the guest OS, and it will already process the event as if this port were its own. https://pve.proxmox.com/wiki/USB_Devices_in_Virtua... there is an instruction on how to throw a port into a VM.

Answer 2

Can.
Login to the desired VM.
qm monitor <#vm>
and execute
device_add usb-host,hostbus=<#bus>,hostport=<#port>,id=<#any_id>
Assign Devices to an already Running VM