I am currently using Ubuntu 12.04.2 32bit. I installed it using LiveCD.
Tomorrow, 23rd August 2013,Ubuntu 12.04.3 is released. I want to upgrade from Ubuntu 12.04.2 to Ubuntu 12.04.3 without using any LiveCD. Is it possible? If so please suggest me how can I do.
Actually while using Ubuntu 12.04.2 I have troubled with graphics. My graphics card is Intel i845G 64 MB. When Ubuntu starts it works fine and smooth without any lagging, but after sometime it hangs for few seconds (1 or 2 seconds) with a garbage screen and becomes sluggish. All windows and browsers start lagging and also it is not possible to play any video in any player (VLC, Movie Player, Xnoise, SMPlayer etc..).
I think Upgrading to Ubuntu 12.04.3 could fix my problem.
Any help will be greatly appreciated..
I've posted an answer to upgrade Ubuntu 12.04.x to 12.04.4. Find it here
Although normal software updates will bring your system up to 12.04.3, the Hardware Enablement Stack (HWE; the *-lts-raring packages) is not part of those updates (by policy).
You can install the HWE packages manually, but there are some caveats.
To upgrade use this command line only:
sudo apt-get install --install-recommends xserver-xorg-lts-raring
The --install-recommends is important. It makes sure that the xserver will install completely. Without it, xserver will only install partly, and apt will remove most of your system. You do not need to add linux-generic-lts-raring, as it is already recommended by the xserver package, and the Kernel 3.8 will install too.
When you upgrade like this you may notice that there are configurations left over, among others those of the original xserver-xorg. You can purge them (I always do), but beware: this will remove the symlink /etc/X11/X that is used to start the XServer, so on next boot it won't start. To prevent this, after purging left over configurations, do the following before the next boot:
sudo dpkg-reconfigure xserver-xorg-lts-raring
This will recreate the necessary symlink and everything is fine again.
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