You sure do have enough hardware power to run that version of the OS so there is something else going on here.
Could be a couple of things.
1. Not enough room on the drive to carry out the installation
2. A defective hard drive.
3. This is not a kosher OS X installation disk. Check that this is not a Restore disk from another Mac.
4. This is a homemade copy of an Original OS X Installation disk. (these do not always work)
In the case of #1, check to see how much drive space you have available on that machine. Just open the HD and at the bottom of the window you should see the number of items in the window and the available space left on the drive. You need at least 5GB of space for a normal install, possibly a little more.
In the case of #2, boot from the 10.5 (Leopard) DVD and, after the second step, the menu bar should appear. Select utilities and Disk Utility. Select the internal HD and run Repair Disk.
If all is well, or the HD has been repaired, quit the installer, reboot from the DVD and try the install again.
In the case of #3, the disks that come with a Mac are sometimes tailored to the specific model of Mac and, as the Installer checks for model types when it configures itself, it will refuse to run on any machine that does not match it's coded model.
Hope this helps
I'm hoping someone can assist. i'm usually in the Cisco Forums. I was just given a gift of a macbook from my sister for a gift. It was her old one she bought a year ago as she upgraded to macbook pro.
I currently have
2GHz Intel core Duo
2GB 667 MHz RAM
I'm currently running tiger 10.4.11
She also gave me a copy of 10.5.6 of leopard. I go to run the installer and after i select the language of my choice i get a message saying that mac os x cannot be installed on this computer.
Can someone help me out and let me know what i could be doing wrong? I have more than enough hardware power to run this don't i?