The procedure for installing SELinux varies according to the target Linux distribution. However, it generally includes the following operations:
Configuration, compilation, and installation of a kernel supporting SELinux
Modification of the bootloader configuration to include the new, SELinux-capable kernel
Installation and configuration of SELinux-related userland libraries, utilities, and commands
Compilation and installation of an SELinux policy
Labeling of the filesystems
The operations can be performed in any of a variety of sequences. A few of these operations can be entirely omitted if precompiled packages are used. And additional operations are generally required, as explained in the following sections.