How to Uninstall Leopard Upgrade and go back to Tiger

I would like to go back to Tiger and was wondering how to uninstall the Leopard upgrade without having to do a full reformat. Is this possible? Thanks in advance!

nerowolfe wrote:
fenderltd wrote:
I would like to go back to Tiger and was wondering how to uninstall the Leopard upgrade without having to do a full reformat. Is this possible? Thanks in advance!
First, welcome to the Apple boards.
Backup what you have because it probably contains things from the original update you want to keep - network settings, passwords, etc. A bootable clone is your best bet - and test it out.
Then you need to format your HD (full, not quick) with the Leopard DVD and then reboot with the Tiger CD and install it. I am not sure how much you can migrate "downwards" from the Leopard backup, but some things will probably come along OK. Not sure about mail since it was converted by Leopard - will it unconvert? Don't know.
I have read of some who tried to simply install Tiger over Leopard but the results were less than great. You can try it once you have that clone backup, because you won't be losing anything.
I would suggest unplugging the clone during the erase and install process until you get to the migration point.
Message was edited by: nerowolfe
I have a brand new Leopard based MacBook Pro that I need to revert to its previous cat form of Tiger. Would you mind walking me through it? I have Tiger disks that came with another MacBook Pro so those should have all of the machine specific items I will need. As I understand this, I start the computer from the included Leopard disk and do a full format. (I noticed that there is a new partition style named GUID Partition, is this Leopard only?) Next, I load in my Tiger disks and install from those? I do not need to do any system backups as I have no information on this computer as of yet. Any help would be appreciated.
Thanks, Brian

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How to Uninstall Leopard Upgrade and go back to Tiger

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