Full procedure if anyone's interested is:
sudo apt-get install sbcl sbcl-asdf
$ rlwrap sbcl This is SBCL 1.0.29.11.debian, an implementation of ANSI Common Lisp. More information about SBCL is available at <http://www.sbcl.org/>.
SBCL is free software, provided as is, with absolutely no warranty. It is mostly in the public domain; some portions are provided under BSD-style licenses. See the CREDITS and COPYING files in the distribution for more information. * (require 'asdf)
NIL * (require 'asdf-install)
; loading system definition from ; /usr/lib/sbcl/sb-bsd-sockets/sb-bsd-sockets.asd into #<PACKAGE "ASDF0"> ; registering #<SYSTEM SB-BSD-SOCKETS {AD248A1}> as SB-BSD-SOCKETS ; registering #<SYSTEM SB-BSD-SOCKETS-TESTS {AE975D9}> as SB-BSD-SOCKETS-TESTS ("SB-BSD-SOCKETS" "ASDF-INSTALL") * (asdf-install:install :cells) Install where? 1) System-wide install: System in /usr/lib/sbcl/site-systems/ Files in /usr/lib/sbcl/site/ 2) Personal installation: System in /home/john/.sbcl/systems/ Files in /home/john/.sbcl/site/ --> 2
debugger invoked on a SIMPLE-ERROR in thread #<THREAD "initial thread" RUNNING {AA5E589}>: The assertion (STRING-EQUAL ASDF-INSTALL::URL "http:// :END1 7) failed.
Type HELP for debugger help, or (SB-EXT:QUIT) to exit from SBCL.
restarts (invokable by number or by possibly-abbreviated name):