Following 2 checksum files are provided by CentOS which are stored on the same ISO directory on the mirror:ĭownload both files and store them locally on the same folder where the downloaded CentOS ISO image is stored. Even if the download is successful, files can still be corrupted during download or can be manipulated by someone on the mirror. It is always a good idea to verify the checksum of the downloaded image. For the purpose of this tutorial, we are going to download CentOS Minimal ISO image. Goto official CentOS Download page to select a mirror closer to you then download an installation image. Step 2: Download and Verify ImageĬentOS distribution image can be downloaded from any of the mirrors freely available. This is a much better solution than old-school BOOTP/PXE. Cloud-init uses YAML based file to pre-configure a system. This image leverages the use of cloud-init to automate the installation process so all systems are installed exactly the same way.
Without an Internet connection, this image can be used to install CentOS. The rest is done by downloading the required packages as the installation progresses.
Network Install ImageĪs the name suggests this is a CD image with essential packages needed to get the installation started. We recommend this image as it keeps the OS as lean and secure as possible. This image also does not require an Internet connection during installation. All other packages must be install as needed basis. Minimal ISO ImageĪt a size of 918 MB, this image comes with bare essential packages to install a fully functional CentOS server.
No Internet connection is required for this image during installation. This installs bare metal CentOS additionally few other packages may or may not need for a fully functional server OS. This is the full edition of CentOS with a download size of 4.3 GB. There are several options available to download CentOS. In this tutorial, we are going to learn how to install CentOS 7.6 minimal edition on a physical or a virtual server using a downloaded ISO image. The active user community includes the core developers, network managers, and Linux contributors. It is a community-driven, available for free Linux server operating system. CentOS or Community ENTerprise Operating System is a stable Linux distribution forked out of Red Hat Enterprise Linux (RHEL).
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