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6.1 Installation
This section contains information about installing and upgrading MapR software. It also contains information about how to migrate data and applications from an Apache Hadoop cluster to a MapR cluster.
Upgrading MapR Core or MEP Components
Depending on your current configuration, you may choose to upgrade the MapR version (MapR Core), ecosystem components, clients, or MapR Monitoring components.
Upgrading MapR Ecosystem Packs
Describes how to upgrade MapR Ecosystem Packs (MEPs), either as part of a MapR Core upgrade or to take advantage of a new MEP for the current version of MapR Core.
Preparing to Upgrade the MapR Ecosystem Pack
Complete these pre-upgrade steps for each ecosystem component in the MEP that you want to upgrade.
Pre-Upgrade Steps for Sqoop2
Complete the following steps before you upgrade Sqoop2 with or without the MapR Installer.

Pre-Upgrade Steps for Sqoop2

Complete the following steps before you upgrade Sqoop2 with or without the MapR Installer.

Back up configuration files. Copy configuration files from /opt/mapr/sqoop/sqoop-<version>/server/conf/sqoop.properties to a location outside the MapR installation.
For example, you can copy the file to a /tmp directory:
```
cp /opt/mapr/sqoop/sqoop-<version>/server/conf/sqoop.properties /tmp/
```
Delete the Sqoop2 repository (/opt/mapr/sqoop/repository).

Note: Due to SQOOP-1593, you also should not create a backup of the Sqoop2 repository before you upgrade.
For upgrades without the MapR Installer:Stop each Sqoop2 server node.
```
maprcli node services -name sqoop2 -action stop -nodes <space delimited list of nodes>
```