Аргумент командной строки -core
должен это сделать.Со страницы руководства:
--core <corefilename>
Use the specified Lisp core file instead of the default. (See the FILES section for the
standard core, or the system documentation for SB-EXT:SAVE-LISP-AND-DIE for information
about how to create a custom core.) Note that if the Lisp core file is a user-created
core file, it may run a nonstandard toplevel which does not recognize the standard
toplevel options.