XG Series User's Guide Chapter 6 Managing the Device
Saving/Restoring Configuration Information
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6. Confirm that the USB port has been blocked.
Run a show usb hcd status command and ensure that the status displays "disable".
7. Remove the USB memory from the device.
# show usb hcd status
[USB HCD STATUS]
status : disable
Note Be sure to restart the device to so that the restored configuration information can take effect.