It is a good idea to backup and restore the database to recreate them with the new OSD.
This will improve performance and MAYBE this can solve your problem. De: firebird-support@yahoogroups.com [mailto:firebird-support@yahoogroups.com] Enviada em: quarta-feira, 29 de outubro de 2014 11:05 Para: firebird-support@yahoogroups.com Assunto: [firebird-support] Migration from Firebird 32 1.5.6 to Firebird 64 2.5.3 Hi. I want to replace my Firebird 32 1.5.6 with the last Firebird 64 2.5.3, on 64b All my databases was created with 32b, 1.5.6 Firebird. After installed Firebird 64, if a try to connect to database.FDB a received an error "database.fdb is not a valid database". Solutions? Thanks.