Updating the kernel
What the question author is referring to is mkdir kernel\ v3.3.1-precise && cd kernel\ v3.3.1-precise wget dpkg -i linux-*sudo update-grub sudo reboot now mkdir kernel\ v3.3.1-precise && cd kernel\ v3.3.1-precise wget dpkg -i linux-*sudo update-grub sudo reboot now Contrary to some answers here Ubuntu releases the new kernel within a day or two of the main kernel team.
I used to upgrade the hard way like some of the answers here suggest but I found this is an easier way. There are reasons why you want to install the latest mainline kernel: Voila!
Performance & battery life increased, while temperatures dropped a few degrees.
My issue of a black screen when resuming from standby has also disappeared.
Though not recommended by some, you can often run official kernels from later versions of Ubuntu without issues.
I'm currently running the 3.3.3 precise kernel on oneiric and my machine works better than ever.
Though I personally haven't had issues from using newer kernels, you will find some people who are strongly opposed to doing this.
I created a shell script that searches for more recent kernel versions and shows them as options to be installed.If not, search around and I'm sure you'll find a tutorial you can follow such as this one.(note that I haven't checked that one thoroughly so be wary as kernels are dangerous beasts) None of the above answers satisfied my problem of manually update the kernel to the latest stable version.Another option is to try customized and optimized builds, such as this i3/i5/i7 optimized 3.2.1 kernel for Ubuntu: Duo Petal Flower, My Experiments with Linux - 3.2.1 kernel He also has Intel atom optimized builds which can work quite well if you're trying to squeeze every last ounce of performance out of a netbook.There are other kernels like Liquorix that claim to be better optimized for desktop performance.
Search for updating the kernel:
After installing the newest kernel a dozen times you will ask the question " this will give you a very big output.