I think if the oracle binary is always started by the oracle user, then things (or most of them) will work even without suid. Try ps command to see what user is listed as running oracle. In init.d oracle startup script(s), it is common to see "su - oracle" added just to make sure it is the oracle user starting things up. It is possible in your broken case that oracle was started by somebody in dba group, but not actually oracle; and your dba group probably does not have write permission on the files. >-----Original Message----- >But i wonder , how it was working so far ( almost >for 3-4 months ) . ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------