VIAVI TestCenter: After upgrade or re image chassis fails to boot cards up

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VIAVI TestCenter: After upgrade or re image chassis fails to boot cards up
• SSH to the chassis as admin and issue the command "version". if it shows the ​build number to be 4.xx.0015 then hypervisor is not be loaded   • To recover try the following  • re image • see KNI14172 • fails try a different thumb drive • ssd replacement • RMA ssd