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Step 1: Learn your Mac OS X Version

  • Click on the Apple icon in the top left of your screen.
  • Select "About This Mac"
  • In the window that comes up, under the title "Mac OS X" there will be a version number.

    • If it starts with 10.9, you have Mavericks.
    • If it starts with 10.8, you have Mountain Lion.
    • If it starts with 10.7, you have Lion.
    • If it starts with 10.6, you have Snow Leopard.
    • If it starts with 10.5, you have Leopard.
    • If it starts with 10.4, you have Tiger.
    • If it starts with 10.3, you have Panther.
  • Write down the Mac OS X version you have.

  • In addition, to the right of the "Processor", there will be the a processor type.

    • If it ends with Intel Core i7, Intel Core i5, or Intel Core i3, you are good to go.
    • If it ends with Intel Core 2 Duo, you are good to go.
    • If it ends with Intel Core Duo or something else, you are NOT good to go. Please flag down a volunteer.
  • Once complete, you may close the "About This Mac" window.

Below is an example.

Step 2: Choose your instructions

Option 2.1: Mavericks

Option 2.2: Mountain Lion/Lion/Snow Leopard


RailsInstaller is an easy way to get up and running with Ruby and Rails on OSX. Try it first.


If something went wrong with RailsInstaller, or you want to do things the 'long way', use these instructions.

Option 2.3: Leopard/Tiger/Panther

If at all possible, you should try upgrading to at least Snow Leopard. Apple doesn't sell it the Apple store anymore, so you'll have to buy it from them online or find a copy from a friend.

Otherwise, you can try following the Panther instructions, but be prepared for some things to be difficult.

Back to Choose Your Operating System

If you find something that could be improved, please make a pull request or drop us a note via GitHub Issues (no technical knowledge required).

Source: https://github.com/RailsBridge-CapeTown