Just to leave some feedback. *Migration from* Koha 16.05 OS: Ubuntu 16.04 64bits Mysql 5.7 with: sql_mode=IGNORE_SPACE,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION *To:* Koha 16.11 OS Ubuntu 16.04 64bits MariaDB First I've tried to upgrade on the same machine and had tons of problems maybe because Mysql 5.7 Then on a new VM machine with MariaDB I've imported the sql backup and had this erros: DBD::mysql::db do failed: Table 'koha_koha.items_search_fields' doesn't exist [for Statement " ALTER TABLE items_search_fields DROP FOREIGN KEY items_search_fields_authorised_values_category; "] at /usr/share/koha/intranet/cgi-bin/installer/data/mysql/updatedatabase.pl line 13152. DBD::mysql::db do failed: Table 'koha_koha.items_search_fields' doesn't exist [for Statement " ALTER TABLE items_search_fields ADD CONSTRAINT `items_search_fields_authorised_values_category` FOREIGN KEY (`authorised_values_category`) REFERENCES `authorised_value_categories` (`category_name`) ON DELETE SET NULL ON UPDATE CASCADE; "] at /usr/share/koha/intranet/cgi-bin/installer/data/mysql/updatedatabase.pl line 13157. Until now everything look ok... ----- Koha version: 16.05.05 - - José Anjos -- View this message in context: http://koha.1045719.n5.nabble.com/Migration-erros-from-16-05-to-16-11-tp5912... Sent from the Koha-general mailing list archive at Nabble.com.