Oh, that's a Leopard with different spots! (Is that leopardassist ?) That's a professional's website: go for it.
#Leopardassist install#
Then I'd replace the Tiger DVD with a Leopard Install DVD (in some gentle way), partition the drive with the Leopard disc and install Leopard in the first partition.īut I've not read anything about this, so: CAVEAT: If your computer crashes & burns, this writer will disavow any knowledge of your actions. It would be easiest if the firmware were edited from a Tiger installation disc booted from an external Firewire DVD reader. If I didn't care a hoot about my computer, I should use the Tiger disk to simply edit the Open Firmware to make my computer look like a good Tiger candidate for Leopard installation. Look, I'm not really a Mac person but I should have thought what you really wanted to do was just fool the Leopard installation disk(s). A little Forth language interpreter should appear and allow you to compare the variables in the first part of the firmware and change those that don't match those in leopardassist's file. Now reboot the computer while holding down the keys Cmd (Poison Apple)-Option-O-F. If you see a firmware variable you want to change, type 'man nvram' and follow the instructions. You might do the second first: if you can boot from disk 1 of Leopard, open the Terminal in Utilities and type 'nvram -p'. Open Firmware on MacOSX is accessed in two ways (each allowing you to edit a different set of variables). Know exactly what you want to do & write it down. (It's easier if you learned Forth twenty years ago.) Print the web page.
#Leopardassist how to#
Here's how to permanently edit Open Firmware, in this case Leopard's:
You know exactly what variables you want to change and the exact values you want them to have, which I had assumed either leopardassist or the link in my previous post will give you. Let's assume leopardassist was supposed to format it properly for you, but didn't and we shall assume that's your problem.
Leopard does format the Open Firmware eeprom differently than Tiger does. Indeed, normally an invalid boot disk should create a little picture of a disk with a question mark. Let's assume you can copy a disk image of Leopard (or its installation program) onto a new disk, and 'disk utility' will both consult the new partition table, &c while it decompressed a foreign disk image of something and places it exactly where the Tiger-created structures on your hard disk expect it to be. Alright, I'll assume you know how to build an operating system.