Install db-upgrade-util by entering the following commands in the terminal:
sudo apt update sudo apt install db-upgrade-util
Description:
Berkeley Database Utilities (old versions)
This empty package depends on the old (from previous stable release) utilities package containing different tools for manipulating databases and installs unversioned links to current database utilities. . This package exists to help package maintainers which need to upgrade Berkeley DB database file. The package which needs to perform an database upgrade will need to depend on db-util and db-upgrade-util and call commands as described in: http://docs.oracle.com/cd/E17076_02/html/upgrading/upgrade_process.html
Version: 1:5.3.21~exp1ubuntu2
Section: universe/utils