Installing Leopard and Tiger on the same computer ...

Question

Installing Leopard and Tiger on the same computer ...

Hi,

How could I install both system, Leopard and Tiger, on my iMac G5 giving me the possibility to startup from one of them at a time ...

I want this to have this possibility to run occasionally classic (with Tiger) while using mainly Leopard. Is this possible ? What are the drawbacks of this possibility ?

Thanks in advance.

Happy owner of an iMac G5 !!!!, Mac OS X (10.4.10), 1.6 GHZ - 17" - 2.0 Go

Posted on Jan 24, 2008 5:41 AM

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Answer 1

First Magus

Level 7

21,299 points

Jan 24, 2008 5:48 AM in response to Robert Lesperance

You could install them on the same drive using different partitions or you could do like I did. I had Leopard as my main system and then used an external drive for my Tiger system. That way I could boot from whichever one I wanted.

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Answer 2

Jan 24, 2008 5:55 AM in response to Robert Lesperance

What size is your current internal drive?
If you current internal drive is fair size, what magus says is right, pull your current internal drive, move it to a firewire inclosure. and later on if/when you decide you no longer need tiger/classic you can use the external drive for time machine backup.

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Answer 3

DonH49

Level 6

16,716 points

Jan 26, 2008 11:26 AM in response to Robert Lesperance

You can partition your hard drive in two. Install Leopard on one partition and Tiger on the other. You can use the start up pane or the option keyboard command to start up either.

If you decide to do this, make sure you partition the hard drive using Leopard's disk Utility. That means you'll need to boot up that G5 with the Leopard DVD.

What issues will you have?
Only install issues will be some software icons during the install only will look different than what they did in Tiger. You'll never realize this because you probably have not performed a clean install very often. Also if you do this, do not do a permissions repair on Leopard booting and using Tiger or visa versa. Stay with each unique system as it was designed, except for of course dragging over bookmark file, mp3, importing mailboxes, word, excel files, etc are exceptions.

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Answer 4

Jan 28, 2008 6:12 AM in response to DonH49

Hi Smokerz,

1. I will have to erase everything on my Machinstosh HD, create 2 partitions with Leopard's disk utility and install Leopard and Tiger on their specific partition.

2. As I understand it, when booted in either system, I will be able to save documents on any of the partitions and open them from within Leopard or Tiger.

3. Will I have 2 applications folders, one on each partition or could I have only one Applications folder ?

4. Is all Leopard compatible softwares also compatible with Tiger ?

5. Alot to think about. Is there other support articles on this topic that you can suggest ?

Thanks for helping.

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Answer 5

DonH49

Level 6

16,716 points

Jan 28, 2008 1:17 PM in response to Robert Lesperance

1. I will have to erase everything on my Machinstosh HD, create 2 partitions with Leopard's disk utility and install Leopard and Tiger on their specific partition. Correct

2. As I understand it, when booted in either system, I will be able to save documents on any of the partitions and open them from within Leopard or Tiger. Correct , you can save between the two if you want.

3. Will I have 2 applications folders, one on each partition or could I have only one Applications folder ? Stop over complicating. Each OS is a system unto itself.

4. Is all Leopard compatible softwares also compatible with Tiger ? No. Do your homework on this one or you'll have Leopard problems.

5. Alot to think about. Is there other support articles on this topic that you can suggest ? apple.com/support in search window type kmosx and read the docs

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Answer 6

Jan 28, 2008 6:49 PM in response to DonH49

«Will I have 2 applications folders, one on each partition or could I have only one Applications folder ?»

I understand from your reply that I only need 1 Applications folder ... Correct ? Could it be located on either partition ?

Thanks for your help.

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Answer 7

Jan 31, 2008 11:10 AM in response to Robert Lesperance

Hi,

I have the same question about sharing App folders.

From what i understand is that you will need separate application folders on each partition. Do not try to share application folders. What he meant from his reply is that each system is separate. Just like you can't use your mac programs on Windows XP, you should do a separate install of each program on each partition.

Sean

Message was edited by: Sean.John

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Answer 8

Jan 31, 2008 12:25 PM in response to Sean.John

Thanks for your feedback ...

Smokerz's comment was not clear to me. I thought he meant that having 2 «Applications» folders is «complicating» things. I am french canadian and sometimes english way of speaking is not fully understood. That is why I asked for a confirmation.

I thought that since all partitions would be available, that with 1 «Applications» folder, apps could be used in both world. If I have 2 versions of MS Word, witch one will open when double clicking on a Word document. I think that what we have to keep in mind is that apps have to be Tiger «and» Leopard compatible. Maybe I misunderstand, but that is what I see as the potential problem.

If what Smokerz meant is to have 2 independent systems, it is not what I was looking for when beginning this thread. I have been using OS 9 and OS x with the advantage of switching from one environment to the other and loved that possibility. I thought that I could have an environment where all my documents could be available when working either in Tiger or Leopard. If I desired to have OS 9 for my accounting package, I would startup my Imac with Tiger and Classic. Once finished, I would reboot with Leopard.

I know that there is an emulator called «SheepSaver» to run OS 9 on Intel machine, but have not been to confirm the speed of that solution. Maybe it is also possible to run it on PPC machines ... I will look into this possibility.

Thanks for helping.

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