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Failed to download image - Error: File COUGAR is not for ONIE_X86 when trying to upgrade a Summit Switch

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TitleFailed to download image - Error: File COUGAR is not for ONIE_X86 when trying to upgrade a Summit Switch
Symptoms
  • Fail to upgrade an Extreme Summit switch
  • Terminal window display the error message: "Failed to download image - Error: File COUGAR is not for ONIE_X86"
Environment
  • Summit X870
  • Summit X690
  • Summit X590
Cause
This happens when you attempt to install the "summitX-" firmware file. 
The Summit x870 and x690 need a different file, due to a different hardware structure.
Resolution
Download the firmware with the "onie-" prefix instead, as this is the correct file for the x870/x690 series.
Additional notes

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