Can't boot open firmware..

[Admirator]

Hi,

I'm trying to install Max OS X 10.5 on my

iMac 5,1
Intel Core 2 Duo
2,16 GHz
RAM: 1GB
667MHz


It obviously doesn't work right away with the Leopard installer, because I dont have the requiered 800 or so MHz.

So I tried to do this right here:

For those with 667Mhz PowerBooks (Or possibly other Macs that don't work with LeopardAssist):

1.) Place the 10.5 Install disk in your drive.
2.) Restart your Mac (don't use on the installer on the disk)
3.) After the chime, hold down COMMAND+OPTION+O+F until you see a light gray screen with black text
4.) let go of the keys and type in the following commands EXACTLY as shown, and hit the RETURN key after each line (you will see an "ok" confirming what you typed was correct):



dev /cpus/PowerPC,G4@0
d# 867000000 encode-int " clock-frequency" property
d# 867000000 encode-int " min-clock-frequency" property
d# 867000000 encode-int " max-clock-frequency" property
multi-boot

Select Leopard Install DVD

but when I press CMD-OPT-O-F at the chime, nothing happens.. Is that because I have an Intel system?

If so, is there any other way to install Leopard on my iMac? And yes, I've seen this Guide ( https://forums.macrumors.com/threads/371302/ ), but that looks incredibly difficult.. Is there an easy way like the CMD-OPT-O-F method?

Thx a lot!
Admirator

 

[Intell]

Last I checked 2.16Ghz is faster then 800Mhz. Leopard will install fine onto your iMac. Intell Macs do not have OpenFirmware.

 

[Admirator]

Well I did try to install it with the Leopad installer and it said "This cant be installed on this" or so..

And when I look at the system preferences, it says that I have only 667MHz.

Sooo.. any help?

 

[blueroom]

Where did you get the Leopard disk? What color is the disk?

 

[GGJstudios]

Well I did try to install it with the Leopad installer and it said "This cant be installed on this" or so..

That sounds like you're trying to use the grey install disks from a different Mac. The install disks are model-specific and won't work on other models. You can buy a retail copy of Snow Leopard, which will work.

 

[Admirator]

This is what I bought:
http://www.ebay.de/itm/250934763332?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

And on there (it's German), it says that it is compatible with:

All iMac/Mac Mini (Intel Core 2 Duo) Machines & Intel Mac Mini from 2007 (since MB138D/A u.A)

Sooo.. that's not true then?

 

[blueroom]

Wrong disk, you need a white snow leopard disk. Should be around $29 US.

 

[GGJstudios]

This is what I bought:
http://www.ebay.de/itm/250934763332?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

And on there (it's German), it says that it is compatible with:

Sooo.. that's not true then?

Absolutely not true. You can order replacement install disks by calling Apple, rather than dealing with an eBay scammer.

 

[Admirator]

Wrong disk, you need a white snow leopard disk. Should be around $29 US.

But right now, I only have Mac OS X 10.4 installed on my iMac, SnowLeopard ist 10.6 right?
Can I just make that jump from 10.4 to 10.6 without installing 10.5 Leopard first?

And is my iMac compatible with SnowLeopard?

 

[GGJstudios]

But right now, I only have Mac OS X 10.4 installed on my iMac, SnowLeopard ist 10.6 right?
Can I just make that jump from 10.4 to 10.6 without installing 10.5 Leopard first?

And is my iMac compatible with SnowLeopard?

Yes, it's compatible and yes you can go straight to SL from Tiger.

 

[Admirator]

Thanks a lot! So, when buying SnowLeopard, what should I look out for so that I dont end up with another model-specific disk?

 

[GGJstudios]

Thanks a lot! So, when buying SnowLeopard, what should I look out for so that I dont end up with another model-specific disk?

Buy SL from Apple or Amazon, not eBay. A retail copy will work with any model. Only the grey install disks that are shipped with Macs are model-specific.

 

[Admirator]

Yes, but you see I only find SnowLeopard Upgrades on Amazon/Apple, that require a 10.5 Leopard OS to be installed... like this one for example: http://store.apple.com/us/product/MC573Z/A?fnode=MTY1NDAzOA

But as you know, I have 10.4 installed, and you said I could make the jump from 10.4 to 10.6 directly..

Can you show me a SnowLeopard CD on the Apple-Store or Amazon that I can use for this purpose?

 

[balamw]

Can you show me a SnowLeopard CD on the Apple-Store or Amazon that I can use for this purpose?

The upgrade from 10.5 is a license requirement, not a physical or technical restriction.

Any retail 10.6 disc can be used to clean install on any compatible Mac. Just avoid the grey discs this time.

B