Side-by-side migration, also called 'inter-server' migration.In-place migration is the easier way to migrate from Ubuntu 16.04 to Ubuntu 18.04. This migration upgrades the existing VM without creating a new virtual machine. In-place migration, also called 'same server' migration.Familiarity with SSH and the Linux command line.This document tells you how to migrate from either older versions of Ubuntu or from CentOS. Migrating will ensure that you get the latest operating system patches, drivers, preinstalled software, and library versions. If you have a Data Science Virtual Machine running an older release such as Ubuntu 16.04 or CentOS, you should migrate your DSVM to Ubuntu 18.04. Upgrade your Data Science Virtual Machine to Ubuntu 18.04