Hi, Well the subject isn't right, the roots aren't corrupt. But taking for example cctools http://src.macosforge.org/Roots/8G1165/cctools.root.tar.gz none of the (fat) executables will run on Darwin 8.0.1(x86); trying to do so results variously in bus error illegal instruction Bad executable (or shared library) I did check a few of them with otool to see what libraries they call for, and those are in place as they should be. The issue seems to be with the i386 portion of the fat runfiles; the PPC portions work fine on a G3 iMac running OSX 10.4.11. I'm trying to put together a Darwin 8.11.1 system; I'm content to use all binary roots to do so. And, I'm trying to do what I can with zero capital and oodles of free time. I'm still pretty new at this (post-68k era MacOS stuff), so any clues would be greatly appreciated. Thanks in advance, -daiyu