Quote:
The problem is when I try to do the same with the tower.
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KZK RECORDS if I'm reading this correctly, (please correct me if I'm wrong) you are trying to instal SL 10.6.3 onto your Laptop / External HDD
AND your MacPro Tower?
If so, then DON'T! hehe, the whole idea is that you can't Downgrade your MacPro's OS. but you
CAN start up your MacPro using a DIFFERENT OS (SL 10.6.7 or lower) than then one that is installed.
This can be achieved with an external drive (be it your laptop or external HDD) which is what the fix involves.
If you successfully installed SL OS onto your laptop and external HDD, then you don't need your SL installer anymore, just Plug in your Laptop or HDD to your MacPro.
Turn your MacPro on and as soon as the "Bwang" (or whatever you want to call it) sound goes off, hit the "Alt / Option" Key until you get the Bootable devices. Sometimes it takes a while to recognize em. and choose the OS that corresponds to your Laptop or HDD.
again ... booting up takes a while since USB and Firewire are slow ports for this kind of operations.
Again i'll be around if you ned any more help.
Cheers!