Which command should be executed to recover from a Puppet installation failure due to a configuration error?

To recover from a Puppet installation failure caused by a configuration error, the most appropriate action is to first address the underlying configuration issue, which is likely the root cause of the installation failure. Once the configuration error has been identified and corrected, executing the uninstaller script helps remove any remnants of the incomplete or problematic installation. This step is critical as it ensures that any incorrect configurations or files do not interfere with a fresh installation attempt. After the uninstallation is completed, a new installation can proceed with the corrected configurations, significantly increasing the chances of success.

Correcting the configuration error before running the uninstaller is essential because proceeding without this step could lead to repeated failures during future installation attempts. This methodical approach ensures that the Puppet environment is set up correctly from the outset, preventing further complications down the line and facilitating a smoother recovery process.