steyn@steyn-desktop:~$ uname -a
Linux steyn-desktop 2.6.32-28-generic #55-Ubuntu SMP Mon Jan 10 23:42:43 UTC 2011 x86_64 GNU/Linux
steyn@steyn-desktop:~$ dpkg --get-selections |grep linux
libselinux1 install
linux-firmware install
linux-generic install
linux-headers-2.6.32-21 install
linux-headers-2.6.32-21-generic install
linux-headers-2.6.32-28 install
linux-headers-2.6.32-28-generic install
linux-headers-generic install
linux-p_w_picpath-2.6.32-21-generic install
linux-p_w_picpath-2.6.32-28-generic install
linux-p_w_picpath-generic install
linux-libc-dev install
linux-sound-base install
pptp-linux install
syslinux install
util-linux install
steyn@steyn-desktop:~$ sudo apt-get remove linux-headers-2.6.32-21