A few weeks ago my chromebook got crazy and its OS got corrupted for an unknown reason. I'd like to instal Ubuntu 12.04 64bit on it using a bootable USB pendrive, but since it is not the usual installation that I am used to on PCs/laptops....I am a bit stuck and dont even know where to start. I'd simply like to make a pendrive that I can make bootable for my chromebook and do the installation.
There are two ways - one requires the Chrome OS to be present and utilizes the kernel there, but you can't do it from a bootable USB stick. The other way involves flashing a new BIOS - but again, you have to be in a workable Chrome OS session. I think the BIOS flash tool got pulled by its creator and is hard to find. But either way, you will need to restore Chrome OS. There is a recovery to do this -
Once its recovered, just google for the cr48 BIOS to install from a pen drive - good luck.
Installing ubuntu on chromebook is a difficult task as far as I know.
It require turn on the developer option & using custom linux kernel.
Few guides are available in internet
This is a very easy to follow step by step guide to turn the new $249 Samsung Chromebook into a full featured netbook by installing Ubuntu Linux. Once complete you can have a dual boot Samsung Chromebook with ChromeOS one one SSD drive and Ubuntu 12 on the other SSD drive.
The way I have installed Ubuntu on a Chromebook is by using Crouton.
Enter developer mode.
At the scary boot screen press Ctrl+D
It will take a while to start up. Enter your Google information.
Click on this download link: https://goo.gl/fd3zc and save the file to your Downloads folder. In case this link has become obsolete, you can find the latest link to the same file at this webpage: GitHub dnschneid/crouton - Chromium OS Universal Chroot Environment.
Press the keyboard combination Ctrl+Alt+T
shelland hit Enter.
Run the following command:
sudo sh -e ~/Downloads/crouton -r trusty -t unity