Applies to BES 53248 Issue When trying to upload an EFOS file using a USB to BES 53248 switch it fails: (Switch)#copy usb://dir1/EFOS-3.11.1.2.stk backup Mode.............................................Applies to BES 53248 Issue When trying to upload an EFOS file using a USB to BES 53248 switch it fails: (Switch)#copy usb://dir1/EFOS-3.11.1.2.stk backup Mode........................................... Binary Data Type...................................... Code Destination Filename........................... backup Management access will be blocked for the duration of the transfer Are you sure you want to start? (y/n) y USB Code transfer starting... DNS Lookup Failed