Help - tried to install leopard over tiger on iBook G4 and cannot boot up

My ibook G4 apparently does not have enough disk space to enable me to install leopard; shame, BUT in process of finding this out I cannot restart in Tiger - machine spends 3-4 mins trying then powers down to black screen.
Any help/advice gratefully received...
Thanks, Bob

Hi Bob, and a warm welcome to the forums!
Do you have a Backup?
Do you have a bootable external drive?
Do you have another Mac around so you could use FW Target Mode to clear some space...
http://docs.info.apple.com/article.html?artnum=58583
If none of the above, then using your Install Disk to Erase everything and start over completely is about the only ting left.
Due to temporary files, RAM Discs, VM, you need twice what they say minimum to install... 20 GB free.

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ebdb wrote:
I have an OS 10.4 Tiger MacBook Pro and I'm thinking about upgrading it to Leopard. What happens when you do that? Does the installer wipe out everything on your HD giving you a blank system where you have to reinstall all your apps and so on, or does it sort of upgrade the infrastructure, leaving your apps and files in place?
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Help - tried to install leopard over tiger on iBook G4 and cannot boot up

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