Thanks 1000 Jan , now it works !!!! Yeah i didn't configured tnsnames.ora....... my fault . <div class="gmail_quote">On Fri, May 25, 2012 at 11:42 AM, Jan Pazdziora <<a href="mailto:jpazdziora@redhat.com" target="_blank">jpazdziora@redhat.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On Fri, May 25, 2012 at 10:45:06AM +0200, stefano ciavarella wrote: > Hello, > another day , another problem..... :) > > spacewalk-dump-schema --db=XE --user=spacewalk --password=password > > spacewalk-oracle.dump > DBI connect('XE','spacewalk',...) failed: ORA-24327: need explicit attach > before authenticating a user (DBD ERROR: OCISessionBegin) at > /usr/bin/spacewalk-dump-schema line 41 > > > While I'm trying to migrate to postgresql , --db=xe lowercase didn't help. </div>I assume you do not have XE defined in tnsnames.ora or via similar mechanism so you need to use something like --db=//localhost:1521/XE Hope this helps, -- Jan Pazdziora Principal Software Engineer, Satellite Engineering, Red Hat <div class="HOEnZb"><div class="h5"> _______________________________________________ Spacewalk-list mailing list <a href="mailto:Spacewalk-list@redhat.com">Spacewalk-list@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/spacewalk-list" target="_blank">https://www.redhat.com/mailman/listinfo/spacewalk-list</a> </div></div></blockquote></div> -- Stefano Ciavarella