When installing multiple operating systems, verify that the allocated disk space is separate from the disk space required by Red Hat Enterprise Linux.

In some cases, it is important to dedicate specific partitions to Red Hat Enterprise Linux. For example, for AMD64, Intel 64, and 64-bit ARM, at least two partitions (/ and swap) must be dedicated to RHEL. Or, for IBM Power Systems servers, up to three partitions (/, swap, and potentially a PReP boot partition) must be dedicated to RHEL.

Additionally, you must have a minimum of 10 GiB of available disk space. To install Red Hat Enterprise Linux, you must have a minimum of 10 GiB of space in either unpartitioned disk space or in partitions that can be deleted.

It is possible to complete the installation with less memory than the minimum requirements. 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. However, additional RAM might be required if the Kickstart file includes commands that require additional memory, or if a large payload needs to be placed in tmpfs (for example in image mode installations). You can add additional swap partition to the system to handle such cases.