So I sussecfully installed OSX 10.6.7 however upon updating to 10.6.8 I get immediate kernel panic, even after using every conceivable combination of boot flags, including: Cpus=1 Busration=18 PCIRoot=1 Maxmem=2048 -x -v -s etc etc After a lot of heavy reading on insanelymac and osx86 I have downloaded a patched kernel that promises to fix the problem I have two questions: 1. Can I replace the mach_kernel with my new taptun_kernel (placed on desktop after initial install) even though I can't boot into -s to get to terminal ? 2. If not, can I re-install OSX 10.6.7 and replace the kernel before update ? I guess I have three, sorry Once I succesfully replace the kernel, do I need to leave the file on the desktop or can I delete it ? Do I move it somewhere ? Thanks!