Understanding Oracle VirtualBox

• Oracle VirtualBox is a free and open-source hypervisor developed by Oracle Corporation.

• It allows users to run multiple operating systems on a single hardware setup without removing the existing operating system.

Installation Process

• Users can install VirtualBox on top of their current operating system (Windows, macOS, Linux, or Solaris).

• After installation, users can set up a Linux operating system, such as CentOS, as a virtual machine.

History of CentOS

• CentOS originated in 2004 when Greg Kurtzer took the source code from Red Hat and branded it as CentOS.

• In 2014, Red Hat acquired the CentOS community, ensuring a 1-to-1 code relationship with Red Hat Enterprise Linux.

Transition to CentOS Stream

• Before February 2021, updates flowed from Fedora to Red Hat to CentOS; now, they flow from Fedora to CentOS Stream and then to Red Hat.

• CentOS Stream is now considered upstream, meaning it receives updates before they are included in Red Hat.

Learning CentOS

• Learning CentOS Stream is valuable as it aligns closely with Red Hat, making Linux knowledge essential for IT careers.

• CentOS Stream 9 is the latest version, and it is recommended for those interested in Linux.