Installing Mac OS X 10.5 Leopard on slow computers: Difference between revisions
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Latest revision as of 22:16, 22 December 2021
Mac OS X 10.5 Leopard requires a PowerPC G4 running at 867 MHz or faster. The G4 is required, but the speed really isn't.
Boot to Open Firmware using Command-Option-O-F. Then, assuming you are going to run the installer from the optical drive, do this:
dev /cpus/PowerPC,G4@0 d# 867000000 encode-int " clock-frequency" property setenv boot-device cd:,\\:tbxi mac-boot
This will fake the CPU frequency as seen by the installer until the next boot. This was tested on an 800 MHz eMac.
