Comments on: Dual Boot OS X Leopard Tiger (10.5 10.4) Installation

By: Mac Geinus (Not his job!!)

Mac Geinus (Not his job!!) — Fri, 19 Dec 2008 02:37:01 +0000

EVERYBODY WHO WANTS TO INSTALL TIGER ON THEIR LEOPARD MACHINES:

Mac OS X 10.4 will NOT install on ANY machines that shipped with Leopard.
The drivers will not run the hardware sufficiently. Tiger does NOT have the drivers for the specific graphic card, processor core, etc. that is not the EXACT same model. If I used the Tiger install disk that came with this PowerBook, for example, it would not install on any other model of Mac, even a PowerBook G4, of a different generation. That being said, the same applies to your iMacs and MacBooks, etc. They are too new to run Tiger! So just sell the copy of whatever program it is you need to run, and wait for the Leopard compatible version. Remember, eBay is a click away!

By: eh?

eh? — Wed, 08 Oct 2008 03:32:45 +0000

or does it just not work that way either

By: eh?

eh? — Wed, 08 Oct 2008 03:30:49 +0000

if i have my mac with the 10.4.11 os x, and my friend just bought a new one with leopard, can i use his installation discs to update leopard onto mine?

By: Nicely Done

Nicely Done — Wed, 01 Oct 2008 09:21:26 +0000

Sajal, You cant install OSX that came with your imac on another mac. You need a retail version of tiger.

By: Sajal Ghosh

Sajal Ghosh — Tue, 09 Sep 2008 22:30:36 +0000

To Ben Lam,

Could you please give me the contact information for your friend who installed OS Tiger in his recently purchased intel Mac (iMac?) with OS Leopard preinstalled? I need to do the same. But the OS Tiger installation disk (from my 2 yr old OS tiger iMac) won’t be recognized by the new intel iMac?Leopard!

Please help.

Thanks,

Sajal

By: alex Lin

alex Lin — Sun, 24 Aug 2008 22:26:33 +0000

I’m going to use this, but with snow leopard and leopard.

By: Ben Lam

Ben Lam — Wed, 23 Jul 2008 18:20:11 +0000

Just hold down the Alt (also known as Option) key after you hear the “chime” when you reboot and you should see multiple drives show up on the desktop. Then use your keyboard left and right buttons to choose one install or the other then press Enter to boot it.

By: Schojo

Schojo — Wed, 23 Jul 2008 16:21:17 +0000

I’m doing this right now on my iBook, everything fine so far…but just a question, how will this boot afterwards? In a Bootmanager where i can choose Tiger or Leopard?

By: Alexandra

Alexandra — Sun, 22 Jun 2008 17:31:44 +0000

Hello everyone, I need a little help, hopefully this can be done i wanted to load OS-X on an external hard drive (60GB) and run it using my PC Laptop. Can that be done? How easy is it to do it? I hope someone can help. Thank you in advance.

By: fiz

fiz — Fri, 06 Jun 2008 20:20:19 +0000

Ben, thanks again for being there!

I went to the Apple Discussions and got a pretty thorough “No go” as the response to this question. The thread is here:

http://discussions.apple.com/thread.jspa?messageID=7329464�

A choice bit from the various responses I received:

“Since you created a GUID partition, I will assume you have an Intel Mac. This means that you can only install Tiger on the Mac if is an older model. The newer model which are coming with Leopard installed will not run Tiger. In order to install Tiger on an older Mac you will need to get the old Tiger install media for the same model in order to install Tiger. The reason for this is the generic Tiger disks only have PPC code on them and are worthless for an Intel Mac.”

Me: It has been suggested to me elsewhere that in order to install Tiger on this MacBook (rev. 3,1), I would need to downgrade the firmware to something circa Tiger. I can run either Tiger or Leopard, but not both. Can someone confirm whether this is true?

“It is not true. Firmware cannot be downgraded.”

So…I’m out of luck! But, fortunately, I have remedied my problems with not being able to access MIDI Driver settings. That story is documented here:

http://discussions.apple.com/thread.jspa?threadID=1548958&tstart=0

The bad news is I now have a retail disk of Tiger I can’t use. The good news is that my computer works (for now), and eBay is a click away.