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Kernel Panic when attempting to reinstall OS X with Snow Leopard DVD

Dear Apple Community,

I've been attempting to do a clean install of Snow Leopard all day, no joy to be had. From using my copy of the dvd, to cloning it and booting it from an external HD, to borrowing a friends copy, it ends in Kernel Panic each and every time.

All I want to do is start afresh! Simulate that new computer smell. Crap-be-gone. The whole process is getting bloody frustrating.

Below is the log from the Kernel Panic. I really enjoyed writing it down and then typing it back up. If anyone at all has the faintest idea of what's going on, your assistance would be truly appreciated.

panic(cpu 0 caller 0x55762459): "Unsupported cpu: family = 0x6, model = 0x2a, stepping = 0x7"@/SourceCache/AppleIntelCPUPowerManagement/AppleIntelCPUPOwerManagement-90/ pmProcessor.c:210

Debugger called: <panic>

Backtrace (CPU 0), Frame: Return Address (4 potential args on stack)

0x5549bd48 : 0x21acfa (0x5ce650 0x5549bd7c 0x223156 0x0)

0x5549bd98 : 0x55762459 (0x5576a7e8 0x6 0x2a 0x7)

0x5549bdc8 : 0x5575d393 (0x11 0x5576bd40 0x5576bda0 0x0)

0x5549bdf8 : 0x5575a05b (0x6b62800 0x6b21f80 0x5549be28 0x6be8100)

0x5549be18 : 0x5389f2 (0x6b62800 0x6b21f80 0x11 0x4fbe2a)

0x5549be78 : 0x536c27 (0x6b21f80 0x6b62800 0x6beaf00 0x6f23b80)

0x5549bf28 : 0x5371b8 (0x6b21f80 0x6be8b00 0x0 0xffffffff)

0x5549bf78 : 0x538e76 (0x6b21f80 0x0 0x5549bfac 0x1)

0x5549bfc8 : x29c68c (0xx6f02c50 0x0 0xffefffff 0xffdfdfff)

Kernel Extensions in backtrace (with dependencies):

com.apple.driver.AppleIntelCpuPowerManagement(90.0.0)@0x55759000->0x5 5770fff

BSD process name corresponding the current thread: Unknown (? - Text obscured)

Mac OS version:

Not yet set

Kernel version:

Darwin Kernel Version 10.0.0: Fri Jul 31 22:47:34 P (Text Obscured)

System model name: MacBookPro8,1 (Mac-94245B3640C91 (Text Obscured)

System uptime in nanoseconds: 7922264

You need to restart your computer. Hold down the Power button until it turns off, then press the Power button again.

Gripping stuff. Responses awaited, gratitude in advance.

Merci beacoup.

MacBook Pro, Mac OS X (10.6.8)

Posted on Jul 22, 2012 9:03 PM

22 replies

Oct 18, 2014 5:47 PM in response to ThumperSD

look at the attributes for the models shown in this long list, or simply enter what you know it this site's search box and a short list will come up:

http://www.everymac.com/systems/apple/imac/index-imac.html

Nov 30, 2014 3:44 PM in response to Grant Bennet-Alder

Sorry for the late response, I just returned from Korea. Since I already formatted the disk, Im unable to view the computer's specs. I can start the machine and get to OSX Utilities window but I dont see an option to view info about my mac anywhere... What can I do?

Dec 1, 2014 6:01 PM in response to ThumperSD

The good news:

This site buys and sells used Macs. Since they needed to determine features based on very little information, they built a serial number decoder. They will decode your Mac's serial number and provide a lot of information about your Mac based on the serial number. No spam will follow.

http://www.appleserialnumberinfo.com

The bad news:

There is no DVD (except possibly the one that "shipped in the box" with your Mac when new) beyond the "Full Retail" 10.6.3 version available from the Apple Online Store. If your Mac cannot boot and install from 10.6.3 Retail, all subsequent purchases or re-downloads are handled by download.

Dec 1, 2014 6:43 PM in response to Grant Bennet-Alder

Would the retail copies from ebay not work? That is where I bought my copy of Mountain Lion.

Dec 1, 2014 6:55 PM in response to ThumperSD

If you use a gray pressed DVD for a specific model Mac that was "shipped in the box" it only contains drivers for that model, and no others.

If you bought a burned Dual-Layer DVD that somebody's cousin made, it may have exactly the right stuff and nothing more, or it could include malware as well.

There are no "Full Retail" DVDs issued by Apple for Mac OS X 10.7 Lion or later.

Dec 3, 2014 7:14 PM in response to Grant Bennet-Alder

Understood. That's a bummer.

What does Apple expect one to do in such scenario where you lose the original DVD?

Dec 3, 2014 7:55 PM in response to ThumperSD

If it shipped with a system before 10.7, you can order a copy of the version of software that shipped with your Mac for a nominal fee. You need your serial number and call Applecare and be insistent to get to a second-level support person if the "first responders" are not familiar with this. There is a nominal charge, about US$25, and you are likely to get a burned dual-layer DVD.

Or you can go to the Apple Store, sit at the counter in the back and use their Wi-Fi (which is usually pretty fast). If you also want help, you need to make a Genius Bar appointment as well, but that appointment is free.

Did you decode your serial number to find out exactly what Mac you have?

Were you able to look up what version its shipped with?

Kernel Panic when attempting to reinstall OS X with Snow Leopard DVD