+* "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. Alma/CentOS/Red Hat/Rocky
+
+The Ruby version shipped with version 7 of these distributions is too old. Use "RVM":#rvm to install a newer version of Ruby (we recommend installing version 2.7 or newer).
+
+Ruby 2.7 is available in a module with version 8 of these distributions. You can install it by running:
+
+<notextile>
+<pre><code># <span class="userinput">dnf module enable ruby:2.7</span>
+# <span class="userinput">dnf install --enablerepo=devel ruby ruby-devel</span></code></pre>
+</notextile>
+
+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.