Make sure that the card or USB drive is fully inserted inside the reader. If it is fully inserted, either format the card
(see the Cisco Nexus 7000 Series NX-OS Fundamentals Configuration Guide) or replace the storage media with
another that is properly formatted for the reader.
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
67
Installing a Cisco Nexus 7009 Chassis
Installing Storage Media in a Supervisor Module