Chromium non supporta nativamente Linux !

Ma Codeweavers ha creato un porting chiamato CrossOver Chromium che puo’ essere installato liberamente.
Non vi faccio perdere tempo a spiegare come si fa, ecco i link ufficiali:

Apple Mac OS X

• CrossOver Chromium for Apple Mac OS X

Note: requires OS X 10.4 or higher and an Intel CPU, PowerPC Macs are NOT supported.

Linux

• CrossOver Chromium for Ubuntu and Debian (32 bit)
• CrossOver Chromium for Ubuntu and Debian (64 bit)
• CrossOver Chromium for Red Hat, Mandriva, and Suse
• CrossOver Chromium for all other Linux distros

http://www.codeweavers.com/services/ports/chromium/