Error W011

Message

[DBC-W011] %s: User %s is not a member of group %s

The user is not a member of the correct DBA group (as detected from rdbms/lib/config.c).

Add the user to the group (gpasswd -a ), login again and retry.

Alternatively, when using multiple oracle users, create another (temporary) DBA user who is member of all required DBA groups