h3. Debian and Ubuntu
-<pre>
-apt-get --no-install-recommends install bundler
-</pre>
+<notextile>
+<pre><code># <span class="userinput">apt-get --no-install-recommends install ruby-dev bundler</span></code></pre>
+</notextile>
h2(#rvm). Option 2: Install with RVM
h3. Install RVM
<notextile>
-<pre><code># <span class="userinput">gpg --keyserver keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
+<pre><code># <span class="userinput">gpg --keyserver pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
\curl -sSL https://get.rvm.io | bash -s stable --ruby=2.5
</span></code></pre></notextile>