Redirect to last posts when click on image

I have problem with my slider, ive made slider and wrote something like this:

*def index
    @posts = Post.all
    @asd = Post.order("created_at").last
 end*


*<div class="container-fluid">
    <div class="row"> 
        <div class="col-md-8">  
            <ul class="bxslider">
                <script type="text/javascript">
                    $(document).ready(function(){
                    $('.bxslider').bxSlider({
                        auto: 'true'
                    });
                    });
                </script>
                <% @posts.limit(2).each do |post| %>
                <li>
                    <a href="<%= post_path(@asd)%>">
                        <%= image_tag ("kicius.jpg") %>
                    </a>        
                </li>
                <% end %>   
             </ul>
        </div>
        <div class="col-md-4">
            asd
        </div>  
    </div>  
</div>* 

I want moved me to the last post when opening the first positions in slider, while the second position in slider has already be the one before last post