Are these the usb drive mount instructions you are using?
https://kb.juniper.net/InfoCenter/index?page=content&id=KB12880
What message to you get after the final unmount command is run?
Are these the usb drive mount instructions you are using?
https://kb.juniper.net/InfoCenter/index?page=content&id=KB12880
What message to you get after the final unmount command is run?