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CentOS is a community-supported, free and open source operating system based on Red Hat Enterprise Linux. It exists to provide a free enterprise class computing platform and strives to maintain 100% binary compatibility with its upstream distribution. CentOS stands for Community ENTerprise Operating System. CentOS developers use Red Hatâs source code to create a final product very similar to Red Hat Enterprise Linux. CentOS is available free of charge. Technical support is primarily provided by the community via official mailing lists, web forums, and chat rooms.
Read following article how to install Centos Linux 7: Install Centos Linux 7 (for comfort set 2G memory for your virtual machine before proceeding with Oracle software installation). Software. Software for 12CR1 is available on OTN or edelivery. 1  OTN: Oracle Database 12c Release 1 (12.1.0.1) Software (64-bit).. Ignore following message. Just click âYesâ button. 5. Select âCreate and configure a databaseâ then click âNextâ button. 6. Select âDesktop Classâ and click âNextâ button. 7. On the screen you need to define global database name and pluggable database name. Rest of options you can keep default.