NetBoot - es una tecnología de Apple que habilita a las Mac con el firmware New World ROM arrancar desde la red en vez de el disco duro local.
Analysis of the Use of the Boot Server Discovery Protocol in NetBoot. "Apple's NetBoot technology has been a staple part of Mac OS X Server since the latter's original release." "Hands on: Configuring Apple's NetBoot service". "NetBoot, a new feature which allows a network of Macs to be booted and configured from a single server" Finally, an applications image is mounted. Next a private image (or scratch disk) is mounted in an overlay over the read-only System image. All in all, the Classic Mac OS uses three images a System image which contains the operating system itself, but may also contain applications. Next, two volumes are mounted via AppleTalk over TCP on which the client disk images reside. Mac OS 8.5 and Mac OS 9 use only BOOTP/DHCP to get IP information, followed by a TFTP transfer of the Mac OS ROM file. NetInstall performs a function for Mac OS X similar to Windows Deployment Services for Microsoft clients, which depend on the Preboot Execution Environment. Like NetBoot, NetInstall images can be created using the System Image Utility. NetInstall is a similar feature of Mac OS X Server which utilizes NetBoot and ASR to deliver installation images to network clients (typically on first boot). Once in the Open Firmware one can tell the client to attempt then NetBoot procedure by entering " boot enet:0" and pressing the return key.Ĭlient machines first request network configuration information through DHCP, then a list of boot images and servers with BSDP and then proceed to download images with protocols mentioned above.īoth Intel and PowerPC-based servers can serve images for Intel as well as PowerPC-based clients. Alternatively, New World Macs can be started with the Command (⌘), Option (⌥), O and F keys pressed to enter the Open Firmware prompt. To NetBoot a client machine, hold the "N" key as the Mac boots, or select the NetBoot server using the Startup Disk preference pane (Mac OS X) or control panel (Mac OS 8 and 9). Server-side NetBoot image can boot entire machines, although NetBoot is more commonly used for operating system and software deployment, somewhat similar to Norton Ghost. 
Clients receive this image across a network using many popular protocols including but not limited to: HTTPS, AFP, TFTP, NFS, and multicast Apple Software Restore (ASR). A disk image with a copy of Mac OS X, Mac OS X Server, Mac OS 9, or Mac OS 8 is created using System Image Utility and is stored on a server, typically Mac OS X Server.
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