由于之前在家中安装了最新的chrome release 16 dev版本，感觉还不错，所以想升级下在公司的chrome，如下：
1. 下载对应版本的dev版本
http://www.chromium.org/getting-involved/dev-channel
我这里时安装的ubuntu 32bit
2. sudo dpkg -i google-chrome-unstable_current_i386.2.deb 即可
若在第二步出现如下异常:
dpkg: regarding google-chrome-unstable_current_i386.deb containing google-chrome-unstable: google-chrome-unstable conflicts with google-chrome google-chrome-stable provides google-chrome and is present and installed. dpkg: error processing google-chrome-unstable_current_i386.deb (--install): conflicting packages - not installing google-chrome-unstable Errors were encountered while processing: google-chrome-unstable_current_i386.deb
可以先执行
sudo dpkg -r google-chrome-beta 或者sudo dpkg -r google-chrome-stable来卸载所安装的版本，然后在执行步骤2即可
可参考如下:
http://www.google.com/support/forum/p/Chrome/thread?tid=3a13d6bc4583685f&hl=en