Remove Old Kernel Linux-Image in Ubuntu Karmic Koala (9.10)

When we upgrading kernel or linux images, the oldest kernel does not remove automatically. So that when we boot or start ubuntu, grub will appear on the new kernel and the old kernel so that it meets the grub display and can be very disturbing view of grub. to remove it,  follow these steps: 

Login as root and view oldest kernel grub you want to remove by type :

$ sudo su


$ dpkg --get-selections | grep linux-image

And will appear :

linux-image-2.6.31-13-generic

linux-image-2.6.31-14-generic

linux-image-2.6.31-15-generic

Now remove oldest kernel by type :

$ apt-get purge linux-image-2.6.31-13-generic

Or

$ apt-get remove linux-image-2.6.31-13-generic

Restart your machine and oldest kernel have been removed.

Happy Testing...!!