The name of the summary log file resembles the following name:
Open the summary log file, and then locate the Final Result entry. This entry specifies the actions that you must take to complete the upgrade. For example, you may see an entry that resembles the following entry:
SQL Server upgrade failed. To continue, investigate the reason for the failure, correct the problem, uninstall SQL Server using the following command line, and then rerun SQL Server Setup. Uninstall command line: setup /q /action=uninstall /instanceid=CLUSTER1 /features=SQLEngine,Replication,FullText
Investigate and resolve the problem that caused the failure. Then, continue with the remaining steps.
At the command prompt, move to the following folder:
At the command prompt, type the command that you identified in the Final Result entry in step 2, and then press ENTER. For example, if the Final Result entry resembles the example entry in step 2, type the following command, and then press ENTER: