How do I upgrade RVM when the official way doesn't work?

Question

Namaste!

Wanting to check out the shiny new Rails 5.0, I bumped into an error saying I need to upgrade my Ruby version to a minimum 2.0.0 (my current version being

Answer 1

Install RVM from scratch

1) First remove the current version, see: https://stackoverflow.com/a/3558763/1076207

# use sudo at your own discretion
rvm implode --force
gem uninstall rvm
rm -rf ~/.rvm

# open file
vim ~/.bash_profile
# remove lines:
# [[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"
# close file

2) Follow the directions on the RVM install page: https://rvm.io/rvm/install