[HOWTO] Downgrade Ubuntu 10.04 Lucid Lynx to Ubuntu 9.10 Karmic Koala
After we upgrade from Karmic Koala Ubuntu then we face lots of problem in our system. Like every times upgrade and others problems. Moreover alpha release and other releases make more problems to your computer. So people would like to downgrade from Lucid Lynx to Karmic Koala. So for downgrading from Lucid to Karmic you need to visit here:
http://releases.ubuntu.com/karmic/
After that download the exact ISO file that matches your computer. And then make it boot able on your disk like USB disk, CD Drive. And then run the bootable drive by inserting during the booting of your system. That’s how you downgrade your Lucid lynx to Karmic Koala.
Source:
Downgrading Ubuntu
[...] folder. So I downgraded my Kernel version from 2.6.33 to 2.6.32. But the problem prevailed. So, I downgraded my Ubuntu version from Lucid to Karmic, but the problem yet could not be solved. And then I again tried to downgraded my Kernel version [...]
this is not 100% downgrading!
^ As far you know there is no downgrade or any sort of option. The downgrading can be done the clean installation. But as far the clean installation will remove all of your files, but it you select the installation path different then the system path and backup all your profiles and sources.lst, apt-files then this can be called a bit downgrade.