Good evening, I'm trying to make usbgard work. I created the initial rules set with usbguard generate-policy > /etc/usbguard/rules.conf and started the usbguard.service. Now I testing it with a USB flash drive but am failing to make it work. The drive is plugged and usbguard list-devices gives the following output: 19: block id 058f:6387 serial "50624E36" name "Mass Storage" hash "icy/i6K1xnkICYPmiNNwJ18cmu5GqfsHSjCGuC5WIXg=" parent-hash "oDU77vx1EsfYlDoXkU7iWjsvmBNCDNTcCHp/V0hIFXc=" via-port "2-1.2" with-interface 08:06:50 with-connect-type "hotplug" However usbguard allow-device 058f:6387 throws the following error message: IPC ERROR: request id=1: Device lookup: device id: id doesn't exist lsbusb shows the device with the same id: Bus 002 Device 004: ID 058f:6387 Alcor Micro Corp. Flash Drive So what am I doing wrong here? Thanks Frank