Add menu for console-only boot.

etc/rc.subr

@@ -170,6 +170,28 @@ checkyesno()
 	esac
 }
 
+checkkenvyesno()
+{
+	_value=`/bin/kenv -q ${1}`
+	debug "checkyesno: $1 is set to $_value."
+	case $_value in
+
+		#	"yes", "true", "on", or "1"
+	[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
+		return 0
+		;;
+
+		#	"no", "false", "off", or "0"
+	[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0)
+		return 1
+		;;
+	*)
+		warn "\$${1} is not set properly - see rc.conf(5)."
+		return 1
+		;;
+	esac
+}
+
 #
 # reverse_list list
 #	print the list in reverse order
@@ -1290,7 +1312,7 @@ run_rc_script()
 	unset	name command command_args command_interpreter \
 		extra_commands pidfile procname \
 		rcvar rcvars rcvars_obsolete required_dirs required_files \
-		required_vars
+		required_vars required_kvars
 	eval unset ${_arg}_cmd ${_arg}_precmd ${_arg}_postcmd
 
 	case "$_file" in
@@ -1974,6 +1996,15 @@ check_required_before()
 			fi
 		done
 
+		for _f in $required_kvars; do
+			if ! checkkenvyesno $_f; then
+				warn "\$${_f} is not set in kernel environment."
+				if [ -z "$rc_force" ]; then
+					return 1
+				fi
+			fi
+		done
+
 		for _f in $required_dirs; do
 			if [ ! -d "${_f}/." ]; then
 				warn "${_f} is not a directory."

sys/boot/forth/menu-commands.4th

@@ -243,6 +243,45 @@ also menu-namespace also menu-command-helpers
 	TRUE \ loop menu again
 ;
 
+\ 
+\ Console Boot
+\ 
+
+: console_enabled? ( -- flag )
+	s" boot_console" getenv -1 <> dup if
+		swap drop ( c-addr flag -- flag )
+	then
+;
+
+: console_enable ( -- )
+	s" set boot_console=YES" evaluate
+;
+
+: console_disable ( -- )
+	s" boot_console" unsetenv
+;
+
+: init_console ( N -- N )
+	console_enabled? if
+		toggle_menuitem ( n -- n )
+	then
+;
+
+: toggle_console ( N -- N TRUE )
+	toggle_menuitem
+	menu-redraw
+
+	\ Now we're going to make the change effective
+
+	dup toggle_stateN @ 0= if
+		console_disable
+	else
+		console_enable
+	then
+
+	TRUE \ loop menu again
+;
+
 \ 
 \ Escape to Prompt
 \ 

sys/boot/forth/menu.rc

@@ -126,6 +126,14 @@ set optionsmenu_keycode[6]=118
 set optionsansi_caption[6]="^[1mV^[merbose..... ^[34;1mOff^[m"
 set optionstoggled_ansi[6]="^[1mV^[merbose..... ^[32;7mOn^[m"
 
+set optionsmenu_init[7]="init_console"
+set optionsmenu_caption[7]="[C]onsole mode... off"
+set optionstoggled_text[7]="[C]onsole mode... On"
+set optionsmenu_command[7]="toggle_console"
+set optionsmenu_keycode[7]=99
+set optionsansi_caption[7]="Console..... Off"
+set optionstoggled_ansi[7]="Console..... On"
+
 \ 
 \ BOOT ENVIRONMENT MENU
 \