Lethal Gimmick

How to Remove Delete Old Linux Header Images from Grub Boot Loader Ubuntu 10.04
1.) uname -r (check your current running kernel version)
2.) Look for installed kernel images - cd /boot && ls vmlinuz* ( or try: dpkg -l | grep -i linux-image)
3.) copy old package name linux-image-2.6.*-*-generic
4.) sudo aptitude remove linux-image-2.6.*-*-generic (If that fails try sudo aptitude purge linux-image-2.6.*-*-generic)
5.) sudo update-grub
6.) reboot and verify grub has removed old kernel version

Note: the "*" are replaced with your old version numbers that you want removed. and if you remove your current running version, I'm assuming bad and or unexpected results will occur.

Can also clean up old junk with sudo apt-get clean && sudo apt-get autoclean && sudo apt-get autoremove