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Not so important stuff:

So here's my problem, i noticed today that i had an old hdd in my pc unplugged. I booted it up to see what was on it and found a previous OS X install that i did awhile back that i thought failed. It worked perfectly but i wanted to install some grahpics drivers but failed and screwed up the whole system.

 

Important stuff:

Now i'm trying to do a fresh install with the same disc, i know it's possible because of the previous installation but everytime i try to boot off of the DVD i get the grey apple start up screen. That will load for about a minute and will get the grey cancel sign. I'm not using any start up options but i can't really remember anything about osx86, are there any start up options i'm supposed to be using? Any help would be great. :)

 

Here's the symbol i'm talking about, but it's grey and over the apple logo:

mac_mini_cancel.jpg

 

Here are some my specs if it helps:

Mobo: ASUS P5Q SE2

CPU: Intel E7300 Core 2 Duo 2.66ghz

GPU: PNY nVidia Geforce 9800 GT 1GB

Press F8 at startup and then type -v so you can see the details of it.

Here are some others taken from Uphuck Forums.

 

Boot with the dvd, when you see the boot prompt of iatkos, press F8, then write this:

-v

This is call a "boot flag" , in this stage of the boot, you can give orders to the DVD or the SYSTEM to do things for you before the system starts, for example, -v (or verbose mode), let you see what is happening on boot on text mode, so if you have any trouble, you can report it more easier.

There are alot of boot flags, but one of them is very useful if you have this problem:

" I try to boot the DVD, but it always restart my machine"

This probably means the kernel used by the dvd as default is not compatible with your CPU, you can especify different kernels located into the dvd and try them to boot the dvd (if one of them works for you, remember the name of the kernel and select it later on install options, so it will get installed for you.

 

The DVD start default with the kernel Voodoo 9.5 (if you have an I7 processor and want to use this kernel you have to use the bootflag busratio=20)

 

Boot flags for kernel load:

mach_970 -v ( Newer Voodoo based kernel, better for all I7 cpus and older Intel/AMD hardware).

toh -v (Ancient 9.2 kernel from the Team Of Hackintosh)

 

ToH 9.2.0 kernel works nice on many types of hardware

 

If you have troubles booting even using the kernels, then add this flag on boot:

cpus=1 and select DSDT patch on DVD (if you have a Quadcore, the DSDT parcher will not fully repair your DSDT, after install boot again with cpus=1 and post on forum the DSDT.aml file you will have in your root, that file will be hidden).

or

-legacy

or combine both.

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