diff --git a/scp.c b/scp.c
index 3ab58051..206ff0ba 100644
--- a/scp.c
+++ b/scp.c
@@ -7511,22 +7511,26 @@ for (i = 1; (dptr = sim_devices[i]) != NULL; i++) {     /* reposition all */
         }
     }
 if ((r = sim_ttrun ()) != SCPE_OK) {                    /* set console mode */
+    r = sim_messagef (SCPE_TTYERR, "sim_ttrun() returned: %s - errno: %d - %s\n", sim_error_text (r), errno, strerror (errno));
     sim_ttcmd ();
-    return sim_messagef (SCPE_TTYERR, "sim_ttrun() returned: %s\n", sim_error_text (r));
+    return r;
     }
 if ((r = sim_check_console (30)) != SCPE_OK) {          /* check console, error? */
+    r = sim_messagef (r, "sim_check_console () returned: %s - errno: %d - %s\n", sim_error_text (r), errno, strerror (errno));
     sim_ttcmd ();
-    sim_messagef (r, "sim_check_console () returned: %s\n", sim_error_text (r));
+    return r;
     }
 #ifdef SIGHUP
 if (signal (SIGHUP, int_handler) == SIG_ERR) {          /* set WRU */
+    r = sim_messagef (SCPE_SIGERR, "Can't establish SIGHUP: errno: %d - %s", errno, strerror (errno));
     sim_ttcmd ();
-    return sim_messagef (SCPE_SIGERR, "Can't establish SIGHUP");
+    return r;
     }
 #endif
 if (signal (SIGTERM, int_handler) == SIG_ERR) {         /* set WRU */
+    r = sim_messagef (SCPE_SIGERR, "Can't establish SIGTERM: errno: %d - %s", errno, strerror (errno));
     sim_ttcmd ();
-    return sim_messagef (SCPE_SIGERR, "Can't establish SIGTERM");
+    return r;
     }
 stop_cpu = FALSE;
 sim_is_running = TRUE;                                  /* flag running */
diff --git a/sim_console.c b/sim_console.c
index e14786da..fc35d801 100644
--- a/sim_console.c
+++ b/sim_console.c
@@ -3988,7 +3988,7 @@ runtty.c_cc[VINTR] = 0;                                 /* OS X doesn't deliver
 #else
 runtty.c_cc[VINTR] = sim_int_char;                      /* in case changed */
 #endif
-if (tcsetattr (0, TCSAFLUSH, &runtty) < 0)
+if (tcsetattr (fileno(stdin), TCSAFLUSH, &runtty) < 0)
     return SCPE_TTIERR;
 sim_os_set_thread_priority (PRIORITY_BELOW_NORMAL);     /* try to lower pri */
 return SCPE_OK;
@@ -3999,7 +3999,7 @@ static t_stat sim_os_ttcmd (void)
 if (!isatty (fileno (stdin)))                           /* skip if !tty */
     return SCPE_OK;
 sim_os_set_thread_priority (PRIORITY_NORMAL);           /* try to raise pri */
-if (tcsetattr (0, TCSAFLUSH, &cmdtty) < 0)
+if (tcsetattr (fileno(stdin), TCSAFLUSH, &cmdtty) < 0)
     return SCPE_TTIERR;
 return SCPE_OK;
 }