Translations:AMD64/FAQ/25/en

Note that binary files created on an x86 system most likely cannot be read by packages on an AMD64 system. In particular, some databases, such as OpenLDAP, cannot simply be copied as-is. You will need to dump the database into an architecture-independent format, such as a text file, before attempting to restore it on an AMD64 system. Database files for MySQL, Berkley DB and SQLite are architecture-independent and can be moved freely when a related daemon, if any, is cleanly shut down.