how to upgrade frm rails 2.8 to 3 and ruby 1.8.7 to 1.9.2

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 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"! http://beginrescueend.com

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

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