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Upgrade Failure Symptoms The VxRail manager upgrade is failing during the precheck stage with an error indicating password expiry retrieval failure for a specific component, or Unable to find requested resource credentials. Also, when attempting to SSH to the VxRail manager or affected components, an error is displayed suggesting potential malicious activity. SSH connection attempts from SDDC Manager VM result in an error indicating potential malicious activity Error message examples: VxRail component upgrade failed with error: Password expiry retrieval failed for [component URL] VxRail component upgrade failed with error: Unable to find requested resource credentials for [component ID]
The error indicates that the host key for the remote server (in this case, the VxRail Manager) has changed compared to the key stored in the SDDC Manager's known_hosts file. This is an integrated SSH security mechanism to prevent man-in-the-middle attacks.
Apply the workaround by running the script provided in the Broadcom article How to update the SSH host keys on the SDDC Manager (External Link)
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