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    • https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/During_a_headswap_process_or_ARL_an_error__SHA256_checksum_failure_detected_in_boot_device_is_seen
      During a headswap process or Aggregate relocation (ARL) an error: "SHA256 checksum failure detected in boot device", during controller boot. SHA256 checksum failure: varfs.tgz SHA256 checksum failure:...During a headswap process or Aggregate relocation (ARL) an error: "SHA256 checksum failure detected in boot device", during controller boot. SHA256 checksum failure: varfs.tgz SHA256 checksum failure: oldvarfs.tgz ********************************************* * ALERT: SHA256 checksum failure detected * * in boot device * * * * Contact technical support for assistance. * ********************************************* ERROR: netapp_varfs: SHA256 checksum failure detected in boot device.