First you need to edit the /etc/apt/sources.list file
sudo gedit /etc/apt/sources.list
Add one of the following
For ubuntu 9.10 (armic) Users add the following two lines
deb http://ppa.launchpad.net/chromium-daily/ppa/ubuntu karmic main
deb-src http://ppa.launchpad.net/chromium-daily/ppa/ubuntu karmic main
For ubuntu 9.04 (Jaunty) Users add the following two lines
deb http://ppa.launchpad.net/chromium-daily/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/chromium-daily/ppa/ubuntu jaunty main
For ubuntu 8.10 (Intrepid) Users add the following two lines
deb http://ppa.launchpad.net/chromium-daily/ppa/ubuntu intrepid main
deb-src http://ppa.launchpad.net/chromium-daily/ppa/ubuntu intrepid main
Save and exit the file
Now add the GPG key using the following command
sudo apt-key adv
--recv-keys--keyserver keyserver.ubuntu.com 0xfbef0d696de1c72ba5a835fe5a9bf3bb4e5e17b5
Update the source list using the following command
sudo apt-get update
Install chromium using the following command
sudo apt-get install chromium-browser
Using Chromium
You can open chromium from Applications--->Internet--->Chromium Web Browser
Once it opens you should see similar to the following screen
Chromium in action
Chromium version details
REFERENCE
http://www.ubuntugeek.com/install-chromium-google-chrome-web-browser-in-ubuntu.html
