3Tb Hard drive and Bootcamp

Hi everyone.
I recently updated my iMac to a 3Tb hard drive, replacing the old one. Restoring MacOSX partition worked like a charm: I booted using moutain lion installer on an SD card and used disk utility to transfer partitions from the ond disk (in a USB external enclosure) to the new one.
I did the same with the bootcamp partition, but it failed miserably, as the partition isn't recognized anymore when pressing ALT at boot time.
I scavenged the whole Web, searching for a solution. I found out that my problem can't be solved, and that both bootcamp and W7 are guilty. I tried using rEFIt (or rEFInd), it led to the same failure.
Interesting fact: new iMacs can be shipped with a 3Tb hard drive...
The question, summing all my disappointment: has someone succeeded where I failed?
Thanks a lot for your help!

https://discussions.apple.com/thread/4605110?tstart=0

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    My Powerbook has been in use since 2004. In China I put in a 1.25 memory 'chip' in the bottom and installed the 10.5.8 operating system, which I understand are the maximum workable with my Powerbook. When I inquired with Chinese friends if my 1.33 GHz processor could be taken out and a more powerful one put in, they said it wasn't feasible because in my particular computer my processor was, as I recall them saying, soldered/'permanently' connected with the 'motherboard', that it would just be easier to get a new computer.
    I would be with them and they would nonchalantly open it completely up showing me all its tightly arranged 'innards' while at least giving it a good internal dust/dirt clean job for cheap lunch and a beer (& so much dirt/dust/lint there was!)...these are the same folks who build the things of course...fast moving hands with tiny screws flying everywhere, but everything 100% all back in place when finished.
    My Chinese friends also said that nowadays Apples are not as well built as when my Powerbook was built, that nowadays an Apple's life expectancy was considerably lower, so I fear that when I get a new computer that, though it will be more up-to-date and powerful, etc., it most probably won't last near as long as my Powerbook has. They also said that in an older computer the fan was often the first component to go bad, and if a new one couldn't be easily found, as they said was my case, then you're just left with having to get an entirely new computer.  Part of why I dislike electronic computer gadgets generally is that they are obsolete so quickly.
    So, anyway, thanks very much for your information.

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