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Copland D11E4 - Files Overview, Hacking, Notes
This is mostly a collection of personal notes about the Copland D11E4 build as I poke around the files and try to get a better understanding of how the system functioned. For more general information about Copland, please see the Apple Copland main article and the documentation links.
Core Files
Mac OS Loader
This appears to be the first bootloader file which executes when you turn on the Copland system with the caps-lock key pressed.
Resources
cstr
Resource values under cstr include "System Libraries" and "Hardware Support" which are library directories within the Mac OS Folder, where the loader looks for code fragments.
Open Firmware
The file contains data and settings for Open Firmware which is used by PCI PowerMacs, unsure how it applies to the earlier NuBus PowerMacs. In the "ofpt" resource type of this file there are numerous OF related resources:
- auto-boot? - This should contain a value of true. If you set it to false, the Copland booter seems to stop right after the initial "happy Mac" screen.
- OFPatches - Contains some references to PCI PowerMac models 7200/7500/8500/9500.
- boot-command - Value is "BootMacOS"
- nvramrc
- use-nvramrc? - Value is true
- load-base