How to fix this?

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http://forums.fedoraforum.org – I have a system running using a IDE hard disk. I backup the full disk (entire) dd if=/dev/sda of=/media/usb/backup.img But now my system is using SATA hard disk NOT IDE HARD DISK. I restore the previous backup image to this hard disk. dd if=/media/usb/backup.img of=/dev/sdb But, after restore the backup image to the new SATA disk, I try to boot, but the system fail on boot. I believe is because the file backup.img is an image file of a system that is configured running using /dev/sda. BUt now i'm not using /dev/sda anymore. Now is /dev/sdb How can i fix my SATA disk to be (HowTos)