kernel panic : not syncing - Ubuntu 8.10

kernel panic : not syncing; VFS; Unable to mount root fs on unknown-block (0,0)

Try the Following steps for solving the issue

Boot from live cd

mkdir /mnt/linux
mount /dev/sda1 /mnt/linux ----> sda1 is my system root partition
chroot /mnt/linux /bin/bash
mount -t proc /proc /proc

change source list into Intrepid Ibex.

apt-get install initrd-tools
apt-get remove linux-image-2.6.27-9-generic

it will remove 2.6.27-9 and install linux-image-2.6.27-11-generic