+* "Option 1: Install from packages":#packages
+* "Option 2: Install with RVM":#rvm
+* "Option 3: Install from source":#fromsource
+
+h2(#packages). Option 1: Install from packages
+
+{% include 'notebox_begin' %}
+Future versions of Arvados may require a newer version of Ruby than is packaged with your OS. Using OS packages simplifies initial install, but may complicate upgrades that rely on a newer Ruby. If this is a concern, we recommend using "RVM":#rvm.
+{% include 'notebox_end' %}
+
+h3. Centos 7
+
+The Ruby version shipped with Centos 7 is too old. Use "RVM":#rvm to install a newer version of Ruby (we recommend installing version 2.7 or newer).
+
+h3. Debian and Ubuntu
+
+Debian 10 (buster) and Ubuntu 18.04 (bionic) ship with Ruby 2.5, which is too old for Arvados. Use "RVM":#rvm to install a newer version of Ruby (we recommend installing version 2.7 or newer).
+
+Debian 11 (bullseye) and Ubuntu 20.04 (focal) and later ship with Ruby 2.7 or newer, which is sufficient for Arvados.
+
+<notextile>
+<pre><code># <span class="userinput">apt-get --no-install-recommends install ruby ruby-dev</span></code></pre>
+</notextile>
+
+h2(#rvm). Option 2: Install with RVM
+
+h3. Install gpg and curl
+
+h4. Centos 7
+
+<pre>
+yum install gpg curl which
+</pre>
+
+h4. Debian and Ubuntu
+
+<pre>
+apt-get --no-install-recommends install gpg curl
+</pre>
+
+h3. Install RVM, Ruby and Bundler