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Cannot Recover the Master Database

Erik Cobb takes us through an undesirable experience:

Recently, during patching for a 2019 SQL Server, the SQL services refused to start after the patching. It was throwing the following heart attack inducing error:

Cannot recover the master database. SQL Server is unable to run. Restore master from a full backup, repair it, or rebuild it.

This is not the first time I have seen this error. Actually, this seems to be the default error that Microsoft throws any time there is a problem with the patching process. The good news is, most likely this is a false error and the master database is perfectly fine.

Read on to learn more.