Unable to boot into 2.8.rc0

Hi, I downloaded the 2.8 iso and went about installing it. Everything went through fine including configuring the 3.4.7 kernel (didn't give any error). I even copied bzImage to boot along with System.map. However on trying to boot into Crux i got kernel panic saying "VFS: Unable to mount root, couldn't find valid ramdisk image", can't remember the exact error message but it should be quite similar to what i mentioned here. Can you please tell what could have gone wrong? There was a 3.4.7 patch file, i didnt do anything with that, could that be the reason or did i miss something else? The fact i didn't get any error during install but the OS not booting is bothering me a lot. Can someone please help? Thanks.