rc: clean up a bit after #1072

o Recovery console is weird, just use CTRL-C from anywhere
o Simplify the early installer invoke by probing for keypress
o Display a brief message when installer+SSH is active

src/etc/rc

@@ -250,16 +250,9 @@ echo "done."
 # let the PHP-based configuration subsystem set up the system now
 echo -n "Launching the init system..."
 touch /var/run/booting
-/usr/local/etc/rc.bootup
+/usr/local/etc/rc.bootup || exit 1
 rm /var/run/booting
 
-# If a shell was selected from recovery
-# console then just drop to the shell now.
-if [ -f "/tmp/donotbootup" ]; then
-	echo "Dropping to recovery shell."
-	exit 0
-fi
-
 # Execute the normal syshook / plugin commands
 /usr/local/etc/rc.syshook start
 

src/etc/rc.bootup

@@ -62,54 +62,6 @@ function is_interface_mismatch()
     return false;
 }
 
-function rescue_detect_keypress()
-{
-    $timer = 7;
-
-    echo "\n";
-    echo "Please choose your preferred boot sequence.\n\n";
-    echo "(C)ontinue with system bootup (default).\n";
-    echo "(I)nvoke the early installer instead.\n";
-    echo "(R)ecovery mode escapes to a root shell.\n\n";
-    echo "Timeout before boot continues:  ";
-
-    $key = null;
-    while (!isset($key) || !in_array($key, array('c', 'C', 'r', 'R', 'i', 'I'))) {
-        if ($timer >= 9) {
-            echo chr(8) . chr(8) . ($timer==9 ? chr(32) : null)  . "{$timer}";
-        } else {
-            echo chr(8). "{$timer}";
-        }
-        shell_exec('/bin/stty -icanon min 0 time 25');
-        $key = shell_exec('/bin/dd count=1 status=none');
-        shell_exec('/bin/stty icanon');
-        if ($key == '') {
-            unset($key);
-        }
-        $timer--;
-        if ($timer == 0) {
-            break;
-        }
-    }
-
-    echo "\n\n";
-
-    if (in_array($key, array('r', 'R'))) {
-        echo "Recovery shell selected...\n\n";
-        touch('/tmp/donotbootup');
-        exit;
-    } elseif (in_array($key, array('i', 'I'))) {
-        echo "Installer mode selected...\n";
-        passthru('/usr/local/etc/rc.installer');
-        if (file_exists('/tmp/install_complete')) {
-            passthru('/usr/local/etc/rc.reboot');
-            exit;
-        }
-    }
-
-    /* normal bootup continues... */
-}
-
 echo " done.\n";
 
 echo "Initializing...";
@@ -140,7 +92,6 @@ echo ".";
 require_once("openvpn.inc");
 echo ".";
 require_once("rrd.inc");
-echo ".";
 echo " done.\n";
 
 /* start devd (dhclient now uses it) */
@@ -157,8 +108,21 @@ system_console_configure();
 
 $setup_installer = is_install_media();
 if ($setup_installer) {
-    /* display live system's early boot options */
-    rescue_detect_keypress();
+    echo 'Press any key to start the early installer:  ';
+
+    $key = timeout();
+    if ($key != "\n") {
+        echo "\n";
+    }
+
+    if (isset($key)) {
+        passthru('/usr/local/etc/rc.installer');
+        if (file_exists('/tmp/install_complete')) {
+            passthru('/usr/local/etc/rc.reboot');
+            exit;
+        }
+    }
+
     /* config may have changed via installer import */
     OPNsense\Core\Config::getInstance()->forceReload();
 }
@@ -175,7 +139,7 @@ echo "done.\n";
  *  avoid a reboot and thats a good thing.
  */
 if (is_interface_mismatch()) {
-    echo PHP_EOL . gettext('Default interfaces not found -- Running interface assignment option.') . PHP_EOL;
+    echo "\nDefault interfaces not found -- Running interface assignment option.\n";
     while (!set_networking_interfaces_ports(true));
 }
 
@@ -249,7 +213,7 @@ local_sync_accounts();
 echo "done.\n";
 
 /* start web server */
-echo 'Starting webConfigurator...'. (system_webgui_configure() ? 'done.' : 'failed.') . PHP_EOL;
+echo 'Starting webConfigurator...'. (system_webgui_configure() ? "done.\n" : "failed.\n");
 
 /* configure cron service */
 echo "Configuring CRON...";
@@ -370,5 +334,12 @@ if ($setup_installer) {
         local_user_set($root);
 
         mwexec("/usr/local/etc/rc.sshd installer");
+
+        echo "\n";
+        echo "Welcome!  Both `root' and `installer' users are availabe for system\n";
+        echo "setup or invoking the installer, respectively.  The predefined root\n";
+        echo "password works for both accounts.  Remote login via SSH is possible.\n\n";
     }
 }
+
+exit(0);

src/etc/rc.initial

 #!/bin/sh
 
-# Copyright (c) 2014-2015 Franco Fichtner <franco@opnsense.org>
+# Copyright (c) 2014-2016 Franco Fichtner <franco@opnsense.org>
 # Copyright (c) 2004-2011 Scott Ullrich <sullrich@gmail.com>
 # Copyright (c) 2003-2004 Manuel Kasper <mk@neon1.net>
 # All rights reserved.
@@ -9,14 +9,6 @@
 trap : 2
 trap : 3
 
-# If recovery console shell option has been specified
-if [ -f "/tmp/donotbootup" ]; then
-	rm /tmp/donotbootup
-	/bin/csh
-	/usr/local/etc/rc.reboot
-	# no coming back from here
-fi
-
 # shell started with parameters, passthrough to real shell
 if [ -n "${*}" ]; then
 	/bin/csh "${@}"