How to fix the Oracle error INS-40420: The current installation user is not the same as the installation owner of the existing Oracle Grid Infrastructure software.?

In this post, you’ll learn more about the Oracle ErrorINS-40420: The current installation user is not the same as the installation owner of the existing Oracle Grid Infrastructure software. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

INS-40420: The current installation user is not the same as the installation owner of the existing Oracle Grid Infrastructure software.

Reason for the Error INS-40420: The current installation user is not the same as the installation owner of the existing Oracle Grid Infrastructure software.

Cause: The installer detects that the current installation user (string) is not the same as the existing Oracle Grid Infrastructure software user (string). To upgrade the existing software, run the installer as the user owning the Oracle Grid Infrastructure home.

How to fix the Error INS-40420: The current installation user is not the same as the installation owner of the existing Oracle Grid Infrastructure software. ?

You can fix this error in Oracle by following the below steps

Action: Restart the installation as the user that owns the existing Grid home.