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On several situation you will need to find out the version of ubuntu (debian) installed in a system you are using.
For that open the command terminal and type:
Everytime there is an update for the kernel, the new kernel is installed while the old one is not automaticaly uninstalled, after several kernel updates, you will find a large list of old kernels in the start grub menu.
So, you want to write a kernel module. You know C, you've written a few normal programs to run as processes, and now you want to get to where the real action is, to where a single wild pointer can wipe out your file system and a core dump means a reboot.
Ubuntu 11.10 Alpha 2 was recently released for the brave and adventuresome to test. I did not do much of a testing, but ran the system in a virtual environment to see what it looks like. Aside from the kernel, there is really no major change, as far as I could tell, from the last stable release, which is Ubuntu 11.04.
Talking about the kernel, Ubuntu 11.10 should be shipping with Kernel 3.0.
Kernel mode setting hasn't been "fixed" for older Intel video, but at least the kernel knows not to turn it on when you're running an i915-type chipset (of which i810 is seemingly a subset). This is how things should have been handled from the beginning. Better late than never.
I never found good documentation on upgrading/compiling linux kernel in Debian, Most of the time I stuck in between and my running libs gets corrupted, then same story; Put new hard disk, Install latest Debian, mount old HDD and copy all the contents.
After reading documents in net, I setup my step-by-step Linux kernel up-gradation (Bash Scripts) in Debian. Up-till now I upgraded more than 5 Debian kernels without any problem.
"Each distribution has some specific tools to build a custom kernel from the sources. This article is about compiling a kernel on a Debian Etch system."
Konsole is the X terminal emulator of KDE. I find having the terminal out of my way, but always open and easy to reach out to, very convenient. It also looks cool. ;) With KDE SC 4.3 you can easily achieve this with a few clicks without the need of any additional software.