Emulators » Sony Playstation 2 » Mac OS X » PCSX2 PCSX2 PS2 Emulator for Mac OS X Overview.
The requirements for SheepShaver x86 are: Linux(installed), Mac OS(from 7.5.3 to 8.6), a PowerPC ROM(included on the Mac OS 8.6 CD), and, possibly, Wine. One of the programs that can do it under Linux x86 is SheepShaver.
Emulating a PowerPC under Linux on x86 is very simple.