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[DBT-50000] Unable to check for available memory while running dbca in Oracle19c

While trying to create a database with dbca utility in Oracel19c, I am getting the following error message in Specify Configuration Options page.

Note that I am using RHEL 8.2.

This is because dbca is not allowed to run/execute binaries from /tmp folder. To fix the [DBT-50000] Unable to check for available memory issue, give execute permission for your tmp folder.

mount -o remount,exec /tmp

Once the database is created, it is adviced to revert the exec permission.

mount -o remount,noexec /tmp