Difficulty Loading Original OS X 10.4 Tiger on Aluminum iMac

Hi All

I'm have problems loading the original OS on an 20" Aluminum iMac I've been given (from reading the forums I believe that this is a mid-2007 vintage Intel iMac). The PO erased (formatted?) the HDD and gave me the original OS 10.4 DVD (2Z691-5811-A). I'd expect that I should be able to pop the DVD in and reload the OS. Upon boot all I get is the grey screen. Pressing the C key at boot gets me to the OS X UTILITIES. But what should I do from here?

I'm thinking that this iMac was previously set up with OS X 10.10 (Yosemite). As when I access 'Reinstall OS X' from the 'OS X Utilities' menu, the only option I get is "OS X Yosemite To set up the installation of OS X 10.10, click Continue." When I do that, It asks me to agree with the terms and then asks which disk to install to (iMAc HD, Mac OSX Install DVD or Recovery HD). The only option is the iMac HD as the Recovery HD is locked. I try selecting the iMac HD and I'm prompted for my Apple ID & PW. When I provide this and sign in I get "This item is temporarily unavailable". As I've tried this over several days, receiving the same message, I suspect that I'm running into a registration issue as my apple ID doesn't match with a OS X 10.10 purchase. BTW... I successfully log on to my home WiFi before I attempt this.

To summarize... I'm trying to downgrade the OS back to OS X 10.4 on an Aluminum iMac. I only plan on using the iMac to sync my family's iPhones (5s) and be a music repository.

I'm a wiz at PCs, however this is my first Apple computer, so please don't assume I know anything.

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Hold down the option key power on the machine. This will bring up the startup manager. leave figure off of option key. Click on dvd. click on arrow to boot.

As described in my response to Kappy above I only get the HD as an option no DVD.

-- That means the firmware didn't recognize the dvd as being bootable on your machine.

-- no dvd in drive.

-- bad drive.

Mac machine are very pickie about what dvd they will boot. Not any os x dvd will do. Only the apple defined ones for your machine are allow.

There is a little circler arrow to re-scan system for valid boot media.

I'm pulling this from memory. OS X 10.6 version of itunes support ios 8.x; it doesn't support 9.x To support ios 9.x you need a later version of OS X.

You may want to consider buy the 10.6 dvd from apple. It's still on sale $19.95.

Apple Phone Sales 1-800-692-7753 [ i think. you need to call wasn't in apple online store. could have changed of course. ]

verify that your machine will run 10.6

find out your exact machine with one of these sites.

when you take to apple they will let you know.

Query by serial number

Apple's warrenty database will identify the type of Mac you have. Your serial number is securely sent. Provides more information for newer machines.

https://selfsolve.apple.com/agreementWarrantyDynamic.do

This site provides more information. Best for older machines. Note, serial number is sent in the clear.

"A serial number is a unique, identifying number or group of numbers and letters assigned to an individual piece of hardware or software. It's used for various things depending on the product / brand but what is your Mac's serial number for and more importantly... what is it hiding and what can it do for you ?"

http://www.appleserialnumberinfo.com/Desktop/index.php

or

This site provides more information, but lacks security too.

"A serial number is a unique, identifying number or group of numbers and letters assigned to an individual piece of hardware or software. It's used for various things depending on the product / brand but what is your Mac's serial number for and more importantly... what is it hiding and what can it do for you ?"

http://www.appleserialnumberinfo.com/Desktop/index.php

http://www.chipmunk.nl/klantenservice/applemodel.html

( hint by K Shaffer )

R

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