Autofs is implemented in kernel-space, so your kernel must have support compiled in. All versions of the kernel starting from 2.2.xx supports autofs. .:: www.redsea.gov.eg ::. .:: telegra.ph ::. [Reference: Prometheus]
The automount program and its configuration files are also necessary; using the rpms. The RedHat distribution has this package available as part of the installation. .:: slackcommunity.com ::. .:: telegra.ph ::. .:: partners.skanska.com ::. [Open Source CSS3]