Database Install/Upgrade/Opatch (MOSC)

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downgrade grid from 19.0 to 12.2:

in Database Install/Upgrade/Opatch (MOSC) 4 commentsAnswered
Hello,

I need help from Oracle Community to downgrade Oracle GI standalone 19.0 to 12.2

I had no success with following command:

./gridSetup.sh -silent  -downgrade -configmethod root
Launching Oracle Grid Infrastructure Setup Wizard...

[FATAL] [INS-45515] The GI downgrade has detected that the Oracle Clusterware stack is not running on the local node.
   ACTION: Either run the GI downgrade on the node where Oracle Clusterware stack is running or open a terminal, log in as root or Administrator, change directory to the Clusterware by entering this command: crsctl start crs.

Would appreciate inputs and if using GUI is a possibility to downgrade GI.

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