Net Boot
NetBoot is a technology from Apple which enables Macs with capable firmware (i.e. New World ROM) to boot from a network, rather than a local hard disk or optical disc drive. NetBoot is a derived work from the Bootstrap Protocol (BOOTP), and is similar in concept to the Preboot Execution Environment. The technology was first announced as a part of the original version of Mac OS X Server at Macworld Expo on 5 January 1999. NetBoot has continued to be a core systems management technology for Apple, and has been adapted to support modern Mac Intel machines. Typical use includes re-installing the operating system on MacBook Air and Mac mini Server, which do not feature an internal optical disk drive. Administrators have to be aware that unlike Windows Deployment Services, Netboot does not come with an image menu by default. On newer machines, the "alt" firmware menu at boot shows all the images available. On older machines, only the list of available servers is shown. This is a great hassle, as the only workaround is to either manually turn on/off the images or to create complex exemption lists.
Read more about Net Boot: Process, NetInstall, Legacy
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