rvm-download is an rbenv plugin that provides an rbenv download command to download and extract ruby binaries from the RVM binaries repository.
$ git clone https://github.com/garnieretienne/rvm-download.git ~/.rbenv/plugins/rvm-download$ rbenv download <ruby-version>Example: downloading ruby 2.1.0:
$ rbenv download 2.1.0
Download and extract ruby 2.1.0 from RVM repository
Ruby 2.1.0 has been installedExample: trying to download a missing package
$ rbenv download 1.8.2
Download and extract ruby 1.8.2 from RVM repository
https://rvm.io/binaries/ubuntu/12.04/x86_64/ruby-1.8.2.tar.bz2 cannot be reached
Cannot found a built version of ruby '1.8.2' compiled for your current system: Ubuntu x86_64 (12.04)Example: trying to install from a different URL
$ RVM_BINARIES_BASE=https://internal.example.com/rubies rbenv download 1.8.2
Download and extract ruby 1.8.2 from RVM repository
https://internal.example.com/rubies/ubuntu/12.04/x86_64/ruby-1.8.2.tar.bz2 cannot be reached
Cannot found a built version of ruby '1.8.2' compiled for your current system: Ubuntu x86_64 (12.04)Example: installing Rubinus 2.5.2
$ rbenv download rbx-2.5.2
Download and extract rubinius 2.5.2 from the RVM repository
Rubinius 2.5.2 has been installedExample: listing all ruby binaries available in the RVM repository for the current platform
Rubinus version are not listed here. To view available rubinus version, use this address: https://rubini.us/downloads/
$ rbenv --list
ruby-1.9.3-p547
ruby-1.9.3-p551
ruby-2.0.0-p353
ruby-2.0.0-p481
ruby-2.0.0-p576
ruby-2.0.0-p598
ruby-2.1.0
ruby-2.1.2
ruby-2.1.3
ruby-2.1.5
ruby-2.2.0
ruby-2.2.1It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
Install the libyaml package available on your distribution. (libyaml-0-2 on Ubuntu)