Mac Pro won't boot from boot drive

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Feb 9, 2011
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Hey guys i got a problem!

I formatted one of my maxtor external hard drives and installed snow leopard and all the updates and all my software on it using my Macbook Pro. Now when I boot and hold down the option key nothing happens!

The only way I can boot from this disk is by going to startup disc and selecting it and setting it as the default start-up disk.


NOW, the real problem is trying to boot my Mac Pro from the disk! When I turn on the Mac Pro and hold down option the menu comes up, but I dont see the external drive, and if i boot using the regular HD and set it as the default nothing happens.

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Theres the formatting for the drive if that has anything to do with it!


Thanks for the help!
 

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