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sounds like a bad server disc to me. Make :apple: send you a new copy, or DL one from the internet, in a defect-situation like this.
 
sounds like a bad server disc to me. Make :apple: send you a new copy, or DL one from the internet, in a defect-situation like this.

It could also be that the version of OS X server on your DVD isn't fully compatible with the latest Mac Pro. Try installing it on the MacBook Pro then update the to 10.5.2 server and finally clone the working install back to the Mac Pro.
 
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