Attaching device by UUID

[apparatus]

@bks

if I attach it persistently, my AppVM fails to start because the device isn’t available yet at boot.

Audio qube

I’ve updated the script, since it was error-prone and with updated script you don’t need to specify the attached USB devices: Disable sys-audio autostart. Run these commands in dom0: sudo mkdir /etc/libvirt/hooks/ cat << 'EOF' | sudo tee /etc/libvirt/hooks/libxl >/dev/null #!/bin/bash guest_name="$1" libvirt_operation="$2" timeout=60 guest_to_start_on_usb="sys-audio" if [ "$guest_name" = "sys-usb" ] && [ "$libvirt_operation" = "started" ]; then ( exec 0</dev/null exec 1>/…

@bks

so I want to run a command to attach a device, but sda/sdb might change.

USB devices: attach by device ID

You can try something like this:

How to get block device of a USB drive attached to a qube using Bash

Extracting from qube using ‘sudo blkid’ is what finally worked… # Get the drive sd* drive_sd_=$(qvm-run --pass-io -u root "$target_qube" "sudo blkid | grep \"$usb_drive_UUID\" | cut -d: -f1")