USB Redirection on Startodesk (Linux Customized ThinOS Image)

Hello, 

I'm using Stratodesk (NoTouch Desktop) and I'm facing an issue in getting the USB redirection to work. I there any procedure that differes between Windows AppPortal and vWorkspace Connector on Linux to get the USB connected to the VDI Machine ?

When I plugged the USB it shows as mounted /dev/sdb1 on /media/DC2C-875A  but nothing appears in the VDI Machine nor when I click on the USB Redirector icon in the Connector i got an error message ( unable to determine auto-sharing state )

Any idea / help... much appreciated. 

Regards,