how to upgrade

can u suggest how to upgrade frm rails 2.8 to 3
and ruby 1.8.7 to 1.9.2

I'm sure you'll hear an echo chamber here of "Use rvm"!

Follow their directions to the letter, and all will be well.


Install rails upgrade plugin and run all the checks to see what changes you need to make to upgrade the app.


you may check this:

this script setup everything for you as per your requirement!!