Bladed Knowledge Base

Linux - Dongle Not Visible in License Manager
Category: Linux

Problem
A situation sometimes occurs when a dongle is visible and updateable on Windows but when plugged into a Linux machine does not show in the License Manager (i.e. there is nothing on the Sentinel Key screen). 
Solution

Restarting the Sentinel service (or even the machine) can often resolve the problem (the same is true after changing / updating the license manager runtime.

Other options:

The red LED on the dongle light up, but the license can’t be seen in localhost. This could happen if the USB ports have not been mounted properly on the Linux machie. You can run the Linux lsusb command to list all USB devices that are attached to the system - check if the dongle appears in this list. To help identify if the problem may be related to the dongle, the USB port, or the machine, you can also try the following:

  • plug the same dongle into a different USB port on the machine
  • plug a different dongle into the Linux machine, and check if the license features are displayed in the Sentinel website - note that for this test the other dongle does not necessarily need to contain a Processor-only license, you can plug in any dongle containing a "Standard", "Processor-only" or "Hybrid" Bladed license, as the license features should be visible on the Sentinel website.
  • plug the dongle into the other Linux machine - is the license also not visible on that machine? 
  • plug another device, such as a mouse, into the same USB port, and see if the device works (and is listed when your run the lsusb command)





Keywords Linux; License