LeopardAssist for MAC

LeopardAssist is a tool that can be used to install OS X 10.5 Leopard on computers that do not have an 867MHz processor or higher. This is done by temporarily writing a script to the NVRAM of your G4 Mac. This script is executed at startup and will temporarily make the system report that a faster processor has been installed. This will allow the Leopard installer to complete its minimum system requirements.

This allows Leopard to install from an unmodified installation media, or another bootable device. LeopardAssist interacts with Open Firmware. It specifies the target processor speed, number of physical processors, and desired boot device. This helps to simplify the installation and configuration process.

Version 3.0:

• Complete rewrite with numerous under-the-hood improvements and optimisations.
• Redesigned interface and icon.
• Limited customisation of startup options now available on G5 systems.
• Users can now choose to start in Single User Mode and Safe Boot after restart.
• Added automatic detection of single- and dual-processor systems.
• Added the ability for users to specify a custom processor clock frequency.
• Added detection for unsupported architectures and insufficient memory.
• Added option to boot from USB where supported.
• Reset Firmware Defaults now performs a complete Open Firmware reset on restart.
• Improved security when handling passwords at authentication stage.