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The exact requirements depend on your environment and installation path. Test various configurations to determine the minimum required RAM for your environment. Installing Red Hat Enterprise Linux using a Kickstart file has the same minimum RAM requirements as a standard installation.
System requirements. If this is a first-time install of Red Hat Enterprise Linux it is recommended that you review the guidelines provided for system, hardware, security, memory, and RAID before installing. See System requirements reference for more information.
Supported installation targets. An installation target is a storage device that stores Red Hat Enterprise Linux and boots the system. Red Hat Enterprise Linux supports the following installation targets for AMD64, Intel 64, and 64-bit ARM systems: Storage connected by a standard internal interface, such as SCSI, SATA, or SAS.
Previous update releases or EUS kernels of Red Hat Enterprise Linux 7 could support up to 2TB of RAM. Red Hat Enterprise Linux 8.2 or newer is required to support 64TB of RAM on IBM POWER9 systems. The maximum supported amount of RAM on Red Hat Enterprise Linux 8.0 and 8.1 for POWER9 is 32TB.
System specifications. The CentOS installation program automatically detects and installs your system’s hardware, so you should not have to supply any specific system information. However, for certain CentOS installation scenarios, it is recommended that you record system specifications for future reference. These scenarios include:
The exact requirements depend on your environment and installation path. Test various configurations to determine the minimum required RAM for your environment. Installing Red Hat Enterprise Linux using a Kickstart file has the same minimum RAM requirements as a standard installation.
If this is a first-time installation of Red Hat Enterprise Linux, review the guidelines provided for system, hardware, security, memory, and RAID before installing. See System requirements reference for more information.
