this is brief it was a response i gave to someone in a pm
personally i would do a vanilla install what you need is a retail disc. I used 10.5.4 retail then you need to restore this to a hardrive partition install chameleon to that partition copy the voodoo rc1 kernel to the root of that drive (make sure its called mach_kernel) then copy your chipset kext and dsmos.kext to extensions folder. Then boot the restored parition with -v -f -s

You now have to mount the partition as writable something like /sbin/mount -uw/

this command is on screen when you log in this way for you to copy 1 of the last lines of text you'll see on screen.
Then type

chmod -R 755 /System/Library/Extensions/
chown -R root:wheel /System/Library/Extensions/
touch /System/Library/Extensions/
this is the correct way to repair the extensions you have added as disk utility will not repair any extensions that are not meant to be there.

type exit

you should now boot into the installer.


do everything as you would do normally but you will not be asked about drivers as this is a standard mac install.

once it has finished add your chipset kext to your new vanilla install maybe your ethernet kext if its not supported in osx natively unless you have an installer you can run to get it there. Also dont forget to install chameleon and add the voodoo kernel to this drive. boot into the vanilla install with -v -f -s again
and run those permissions commands again.

This should give you a retail install on AMD this is what im running and updated to 10.5.5 no problem only thing you have to do is make sure you have an additional copy of the kernel on the root partition I call mine backup. Then when i update and apple replaces my kernel with theirs i just type backup -v -f at boot then recopy my kernel. Hope this makes sense and i havnt missed anything out. Also when doing a fresh install always update to the latest if you can before adding graphix kexts as sometimes the issues you have are caused by the fact apple has added drivers for hardware that you have and they dont like the drivers you already have.

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