How old is your Hard disk? If very old then probably its dieing .. better backup your important data and get a new one.
Did you repartitioned your hard disk after installing Ubuntu? If so, > then you need a live cd to fix your grub. > Nothing to do with grub ;) Kernel panic probably means there is somethings wrong with some device. or may be Kernel is damaged as the error includes CRC. Do a full disk check. Mahmood -- Ubuntu Bangladesh mailing list ubuntu-bd@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bd
