[ubuntu] Problem with new hard disk (Western Digital)

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http://ubuntuforums.org – Hi all, I bought a hard disk yesterday (WD Scorpio Blue - WD10TPVT) 1TB and I replced it with my previous hard disk. Now I only can install windows (XP and 7) but I can not install Ubuntu again (of course no other Linux based CD can be boot and start!!!). What Can I do now? Can some one help me to solve the problem? I don't want to install windows and I only want to have Ubuntu. Thanks a lot (Hardware)