Tag Archives: Upgrade

Solving MGMTDB errors during 18c GI RU apply

Recently I executed the upgrade of Oracle GI to 19c version, from to version. But one step that was not showed there was that, because of requirements, the GI was upgraded from to This upgrade is a just Release Update (RU) apply and opatchauto command.

But during this upgrade, from 18.2 to 18.6, I faced (more than one time – 5 to be precise) errors during the update because of the MGMTDB errors. I got these errors:

  • ORA-12514, TNS: Listener does not currently know of service requested in connect descriptor
  • ORA-01017: invalid username/password; logon denied
  • MGTCA-1005 : Could not connect to the GIMR.
  • CRS-10407: (:CLSCRED1079:)Credential domain does not exist.

Here I will show how to solve these errors, how to identify if everything was fine and if you can continue. Be careful that it is an example, always open a support SR to identify the source of the error.

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19c Grid Infrastructure Upgrade

Upgrade GRID infrastructure is one activity that usually is postponed because it involves a sensible area that, when not works, causes big downtime until be fixed. But, in the last versions, it is not a complicated task and if you follow the basic rules, it works without problems.

Here I will show a little example of how to upgrade the GI from 18.6.0 to 19.5. The steps below were executed at Exadata running version and GI, but can be done in every environment that supports Oracle GI.

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