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Manual ONTAP upgrade results in signature verification failure

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Applies to

  • ONTAP 9
  • Manual Non Disruptive Upgrade (NDU)
  • Upgrading from ONTAP versions seen in the below list or earlier, to any ONTAP build released after the versions below
  • 9.17.1
  • 9.16.1P7
  • 9.15.1P14
  • 9.14.1P14
  • 9.13.1P17
  • 9.12.1P19
  • 9.11.1P20
  • 9.10.1P20
  • 9.9.1P20
  • 9.8P21
  • 9.7P23
  • 9.6P18
  • 9.5P19

Issue

  • Performing a manual ONTAP upgrade (via  the system node image update command) from an ONTAP version released prior to September 9th, 2025 to a release after this date will fail with a signature validation error

Note: For the vast majority of configurations, manual non-disruptive ONTAP Upgrades (NDU) are not best practice and should not be used to upgrade an ONTAP cluster.  See Recommended ONTAP upgrade methods based on configuration for more information.

  • All automated non-disruptive upgrade (ANDU) workflows (e.g., running "cluster image update" in the CLI or upgrading via System Manager),  will automatically workaround this issue, and no other action is needed.
  • If a manual upgrade is attempted without performing the workaround in the "Solution" section of this article below, an error similar to the following will be returned:

Error: Failed to verify the signatures of the image. The image may have been corrupted. Replace the image, and then try the command again.
Action: Use the "cluster show" command to verify that all nodes in the cluster are healthy. Use the"cluster image package show-repository" command to verify that the downloaded image has the correct version. If all nodes are healthy and the image has the correct version, wait a few minutes, and then use the "cluster image resume-update" command to resume the update.

 

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