MacBook Pro 8,1 beeping 3-times on reboot on FireWire HDD

hi, all,

brand spanking new 13" bought, wanted boot firewire drive install snow leopard. install disk image copied dedicated partition on fw drive speed install process.

holding [alt] key during startup leads 3 beeps indefinitely repeated. tried select relevant partition in control panel startup disk. same result

why doesn't want start image? how can solve issue?

 

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