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MacZilla2007 · May 22, 2008, 02:54 PM

Is it possible or can it be done installing a 10.5 on a Dual 800 with 1.5 Gig in RAM. Just need to know.

Thanks

MacZilla2007 · May 22, 2008, 04:01 PM

I think I found the answer while surfing around.....A person has suggested that one could use a second CPU such as a laptop and set the other unit in "Target Disk Mode".

My question is would it work if my laptop is an Intel based unit and the other is a Power PC any thoughts?

imitchellg5 · May 22, 2008, 04:18 PM

Has to be a PowerPC laptop. Otherwise it will install the Intel version of OS X.

MacZilla2007 · May 22, 2008, 04:45 PM

Bummer Man.....also thanks I would have wasted a lot of time.

Well time for me to find another Mac CPU Power PC to load it with is that about right?

Also I am going to use "Time Machine" and use an internal Hard Disk what size should I go with? 300, 400 or 500Gig?

Just another thought.......

packet of krisps · May 22, 2008, 05:34 PM

Here are the requirements to run Leopard.

Apple - Mac OS X Leopard - Technical Specs

As for the HD, it pretty much depends on what you back up:

Office documents as you may know, don't need much space.
Music doesn't take up as much as some people think, check your iTunes library and see how much you need to back up.
What does need a lot of space are movies, whether on iTunes, Torrents, or just DVD rips, you need a decent sized HD.

angelmb · May 23, 2008, 12:07 AM

Have you tried LeopardAssist - Install Leopard on Sub-867mhz Macs yet ?

MacZilla2007 · May 23, 2008, 12:39 PM

Thank you for the advice I will try it later on today and let you know how it works. You have to love those "Code Writers" were do they come up with this stuff.

Thank you

CharlesS · May 23, 2008, 10:31 PM

Originally Posted by imitchellg5

Has to be a PowerPC laptop. Otherwise it will install the Intel version of OS X.

That's not true - Leopard is universal. I just tried booting my MBP from my iMac G5's hard drive that has 10.5.2 on it, and it worked.

Know how you have just one Leopard install DVD that can boot both PPC and Intel Machines? ...yeah. I have no idea how they made that work, but so far as I can tell, it does.

imitchellg5 · 10:43 PM

Really? Cause when I installed Leopard on my G4 via my dad's MBP it wouldn't boot at all but the MBP could boot it. When I installed it with my PowerBook G4 it booted right up but the MacBook won't boot it.
Edit: I did have some major file system issues going on though neccessitating the reinstall of Leopard which might have created an issue.

Eug · May 23, 2008, 10:42 PM

Originally Posted by imitchellg5

Really? Cause when I installed Leopard on my G4 via my dad's MBP it wouldn't boot at all but the MBP could boot it. When I installed it with my PowerBook G4 it booted right up but the MacBook won't boot it.

This is one way I did it with my MacBook for my Cube. (Intel Macs can boot PowerPC APM drives, but PowerPC Macs cannot boot Intel Macs GUIDPT drives.)

Warning: Eug's blog - How to use an Intel Mac to create a PowerPC boot drive.

Kinda tedious, but it worked. There are better ways of doing it though.

MacZilla2007 · May 23, 2008, 11:58 PM

Thank you all for your help!

I did load Leopard on my MacBook Pro and it is running slower than before yet I kind of knew that would happen I need to shutdown some of the apps running in the background.

As for the Dual 800 I think I'll leave that with Tiger until I get an accelerator card for it then install Leopard.

Again thanks for all the ideas and thoughts……

Eug · May 24, 2008, 12:19 AM

No need for an accelerator on a dual 800. Should work just fine, including speedwise.

MacZilla2007 · May 24, 2008, 12:34 PM

Really I thought since I am slowing down on my Intel MacBook Pro that a Power PC might not handle the same load. Unless Apple designed the loading of Leopard for each type of computer and their needs. Just a guess.

Thanks for the heads up.

CharlesS · May 24, 2008, 12:40 PM

If you've only got 512 MB of RAM, then it'll be pretty slow. If you've got a respectable amount of RAM, it should be fine. RAM is the important thing to consider with Leopard (and Tiger, for that matter).

If you've got 1.5 GB, you should be fine.

dimmer · May 24, 2008, 01:39 PM

Low End Mac has the details you need to make OpenFirmware think the CPU speed is higher than it really is. That trick done, Leopard installs and runs fine (yes, a little slower and you are not getting Classic, so keep that in mind). A dual 800Mhz system with 1.5GB of RAM should have no issues (I installed Leopard on my dual 800 system with 700MB of RAM and it's fine).

Andrew Stephens · May 30, 2008, 04:11 PM

You could clone it on. I've got Tiger on some low end non firewire iMacs this way. You'll need a Leopard spec desktop to install your clone drive into though.

imitchellg5 · May 30, 2008, 08:24 PM

Originally Posted by Eug

This is one way I did it with my MacBook for my Cube. (Intel Macs can boot PowerPC APM drives, but PowerPC Macs cannot boot Intel Macs GUIDPT drives.)

Warning: Eug's blog - How to use an Intel Mac to create a PowerPC boot drive.

Kinda tedious, but it worked. There are better ways of doing it though.

Oh very interesting. Thank you for the link.