Finally, an applications image is mounted. If they all fail, it will resort to using its boot ROM image. In the example, this router will try a succession of three different IOS images. (This will maintain the mac BIOS instead the new rEFInd program): Added to make. The boot system command allows you to specify not only which IOS images to boot from, but also the order to try them in if it has trouble booting.
Next a private image (or scratch disk) is mounted in an overlay over the read-only System image. Do you often use USB to boot and install the operating system.
#Make a new boot image for mac mac os#
All in all, the Classic Mac OS uses three images a System image which contains the operating system and may 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 macOS 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 macOS Server which utilizes NetBoot and ASR to deliver installation images to network clients (typically on first boot). 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.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 and PowerPC-based clients.
Clients receive this image across a network using many popular protocols including: HTTPS, AFP, TFTP, NFS, and multicast Apple Software Restore (ASR). A disk image with a copy of macOS, macOS Server, Mac OS 9, or Mac OS 8 is created using System Image Utility and is stored on a server, typically macOS Server.
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