Despite this apparent APM support, Apple never officially supported booting from an internal APM disk on an Intel-based system, but there is an official Apple document describing how to set up a dual bootable external APM disk for use with PowerPC and Intel.
Despite this apparent APM support, Apple never officially supported booting from an internal APM disk on an Intel-based system. The one exception for a universal version of Mac OS X (Tiger or Leopard) is an official Apple document describing how to set up a dual bootable external APM disk for use with PowerPC and Intel.