This post describes how to install and configure Steel Bank Common Lisp (SBCL) with SLIME (Superior Lisp Interaction Mode) that is installed via Quicklisp on Ubuntu 14.04 LTS (Trusty Tahr).
Install SBCL
sudo apt-get install sbcl sbcl-doc
Install Quicklisp
curl -O http://beta.quicklisp.org/quicklisp.lisp sbcl --load quicklisp.lisp (quicklisp-quickstart:install) (ql:add-to-init-file)
Install slime via quicklisp
While still in the SBCL session
(ql:quickload "quicklisp-slime-helper")