On Jul 6, 2010, at 11:28 PM, Kris Tilford wrote:

> On Jul 6, 2010, at 10:49 PM, John Carmonne wrote:
> 
>> I got it fixed I don't understand this I had to reinstall the OS to get it 
>> working The FW nor the internal optical would boot, I took all apart and 
>> reset the CUDA, the full Monty, even switch out the RAM, every thing I could 
>> think of.
>> So to get the installer to boot I put the image on a 8 GIG stick and booted 
>> on USB and did the reinstall. Now every thing is working.
> 
> This makes no sense to me. If you can't boot the optical drive, and you can't 
> boot the HD, and you also can't boot a KNOWN WORKING Firewire drive, this is 
> DEFINITELY a firmware issue, NOT a System software issue. The fact that you 
> seemingly "fixed" your problem with a System software reinstall from a USB 
> drive seems to me to be COINCIDENTAL and not indicative of a real "cause & 
> effect" solution. I'm glad you solved your problem, but I don't believe your 
> solution was the solution.
> 
> I would bet that if you'd booted the USB stick installer, and gone directly 
> to Startup Disk and selected the normal HD as the startup device it would 
> probably boot without the need to reinstall everything. Unless you tried 
> that, we'll never know, but at least Startup Disk is WRITING to the NVRAM 
> which is the part of the firmware that controls the boot, and it would be a 
> possible "real" solution to your problem. When you do a reinstallation it 
> also writes to NVRAM to set the newly installed System as the boot device for 
> the initial reboot after reinstallation. I believe that it's the "writing to 
> NVRAM" that solved the problem, and not the reinstallation itself.
>  
I did try numerous times to boot the 10.5.8 volume on the normal drive and it 
hung on the Apple grey screen and a few times it hung on the blue screen. It 
hung every time with the FW external drive and the internal optical, which I 
don't understand the optical failures. 

I could boot the 10.4.11 volume with the option key on the normal drive and 
show the other volumes including the start disk in the optical drives, but if I 
chose any one of them from start up disk they all hung. Only after the 
reinstall on the 10.5.8 volume did it straighten out.

John Carmonne
Yorba Linda USA
Sent from my MBP



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