Moving from rvm to rbenv

I am setting up this blog, and I am setting up an AWS instance. You can check my setup here

But turns out that rvm installation is broken. It happens from time to time. I used to use a workaround, and I can’t find it right now. This is the error I’ve got:

    GPG signature verification failed for '/home/ubuntu/.rvm/archives/rvm-1.26.11.tgz' - 'https://github.com/rvm/rvm/releases/download/1.26.11/1.26.11.tar.gz.asc'!
    try downloading the signatures:
        gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3

I don’t want to deal with fixing it. I would rather try rbenv. Specially after reading RVM and rbenv and Why rbenv?

I followed the steps in the documentation, and this is the commands that I run. Remember I’m using Ubuntu 14.04, so I need to change ~/.bash_profile to ~/.profile

git clone git://github.com/sstephenson/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.profile
echo 'eval "$(rbenv init -)"' >> ~/.profile
git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
source ~/.profile

Then I can install any version of ruby. In my case, I need ruby 2.1.2

rbenv install 2.1.2
rbenv rehash
rbenv global 2.1.2

Bad interpreter error

I found my first error! Yay!

ubuntu@ip-172-30-0-171:~/blog$ bundle install
-bash: /usr/local/bin/bundle: /usr/bin/ruby2.0: bad interpreter: No such file or directory

Turns out that, even though I uninstalled the ruby package, the bundler gem was still installed. So I had to do some cleanup

sudo apt-get install ruby2.0
sudo gem2.0 uninstall bundler
sudo apt-get purge ruby2.0

Summary

Now, I can use Ruby 2.1.2 in Ubuntu 14.04. Happiness and joy!