installing on hard drive(12.10)

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http://askubuntu.com – (running 12.10)I have a old computer that really cant do anything on its own(put in usb or cd while booting doesn’t work either) hard drunning 12.10rives are wiped too, so what I taught about doing is get my hard drive enclosure and install it on my HD then taking off HD enclosure and putting it back in the computer. I did this and it would come up with the purple Ubuntu menu(choose Ubuntu) then a screen with a Ubuntu wallpaper comes up and nothing else( just the internetwork offline or something like that) can somebody help me, what am i doing wrong, right now im using my HD w/ enclosure on (HowTos)