Environment: MDM 7.1, CentOS 5 x86_64,Oracle 10.2. CentOS is one of the open source Linux distribution. you can install MDM system on it. 2G memory, 15G disk space should be enough for test or training. SAP Netweaver Master Data Manager is a part of SAP NetWeaver. But It’s a bit different to install MDM from NW7.0 or PI7.1. The NW 7.0 install master can do everything, you don’t need to worry about Oracle installation or configuration. But for MDM, you have to install oracle, and client, then create a database, before the installation. MDM console and client is only available on windows. All We need to do is to install MDM server component: MDS, MDIS and MDSS. *General Procedures* 1, Install Oracle and client. 2, Create database. You must use Unicode for Database Character Set.3, Configure listener and tnsnames. 4, Execute MDM install master. Input directory for Oracle home, client and SQLplus. And you need do this: ln -s libclntsh.so.10.1 libclntsh.so here.