Short answer: 'db4.7-util' Long answer: On the N900, you can install db4.7-util_4.7.25-21_armel.deb from Debian "Wheezy" armel repository, and then use 'db4.7_dump' to export information. On a host PC, use the correct architecture for the package, accordingly to your installation. Should be in the main Ubuntu repositories too.