I\'m on Mac OS x 10.8.2 (\"Mountain Lion\"), and I successfully installed RVM 1.17.8 and its dependencies. I\'m able to use it to install Ruby versions using rvm install 1
Make sure your shell initialization files are set up properly:
rvm get head --auto-dotfiles
Then go to your terminal emulator preferences and enable login shell, sometimes it it required to use /bin/bash --login.
Also make sure to fully close terminal and open it fresh after changing the setting.