VCSA Upgrade: Failed to authenticate with the guest operating system using the supplied credentials.

Problem: During an upgrade from VCSA 6.5 to 6.7, the following error was observed in the install log and prevented stage one of the upgrade from starting.

  • error: sourcePrecheck: error in getting source Info: ServerFaultCode: Failed to authenticate with the guest operating system using the supplied credentials.

The root password entered into the wizard worked for logging into the appliance via the web interface (https://vcsa-ip:5480/) as well as via SSH.

Attempting to change the password or disable password expiration via the web interface did not work.

Solution: I was able to reset the password via SSH using the follow commands. Once done the wizard accepted the password and was able to complete stage 1 of the upgrade.

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Success!

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