this happened on an install once and UBUNTU got my drives all different. so for me I always install after the xwidow inviroment is running. that solved the live cd install for me. But now put the live cd in and start the xwindow environment
Open up terminal and type the following.
"Or with out the live CD" at the boot press the "e" key use your arrows key and toggle down and type right after the "splash" (type) telinit 1 then press the (Ctrl and the x key) the system will boot then choose update grub.
this may be a problem and the reason is your drive is not mounted if it is in read-only then it will see the kernel in your /boot/ folder if not update grub from live disk. grub2 is suppose to sync this for you. But it is a hit and miss.