Megatest

	      (set! *toppath*    (or toppath (cadr first-pass))) ;; use the gathered data unless already have it
	      (set! toppath      *toppath*)
	      (if (not *toppath*)
		  (begin
		    (debug:print-error 0 *default-log-port* "you are not in a megatest area!")
		    (exit 1)))
	      (setenv "MT_RUN_AREA_HOME" *toppath*)
	      (setenv "MT_TESTSUITENAME" (common:get-testsuite-name))
	      ;; the seed read is done, now read runconfigs, cache it then read megatest.config one more time and cache it
	      (let* ((keys         (rmt:get-keys))
		     (key-vals     (keys:target->keyval keys target))
		     (linktree     (or (getenv "MT_LINKTREE")
				       (if *configdat* (configf:lookup *configdat* "setup" "linktree") #f)))
		     (second-pass  (find-and-read-config
				    mtconfig

	      (set! *configstatus* 'partial))
	    (begin
	      (debug:print-error 0 *default-log-port* "No " mtconfig " file found. Giving up.")
	      (exit 2))))))
    ;; additional house keeping
    (let* ((linktree (or (getenv "MT_LINKTREE")
			 (if *configdat* (configf:lookup *configdat* "setup" "linktree") #f))))
      (if (string? linktree)
	  (begin
	    (if (and (not (file-exists? linktree))
		     (file-write-access? (pathname-directory linktree)))
		(begin
		  (handle-exceptions
		   exn
		   (begin
		     (debug:print-error 0 *default-log-port* "Something went wrong when trying to create linktree dir at " linktree)
		     (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
		     (exit 1))
		   (create-directory linktree #t))))
	    ;; now create the lt link in MT_RUN_AREA_HOME
	    (handle-exceptions
	     exn
	     (begin
	       (debug:print-error 0 *default-log-port* "Something went wrong when trying to create link to linktree at " *toppath*)
	       (debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn)))
	     (let ((tlink (conc *toppath* "/lt")))
	       (if (not (file-exists? tlink))
		   (if (file-write-access? *toppath*)
		       (create-symbolic-link linktree tlink))))))
	  (begin
	    (debug:print-error 0 *default-log-port* "linktree not defined in [setup] section of megatest.config")
	    )))
    (if (and *toppath*
	     (directory-exists? *toppath*))
	(begin
	  (setenv "MT_RUN_AREA_HOME" *toppath*)
	  (setenv "MT_TESTSUITENAME" (common:get-testsuite-name)))
	(begin
	  (debug:print-error 0 *default-log-port* "failed to find the top path to your Megatest area.")))
    *toppath*))

(define launch:setup launch:setup-new)

(define (get-best-disk confdat testconfig)