firstsetup: edit serial console device matching to commandline.

src/initscripts/init.d/firstsetup

@@ -1,4 +1,25 @@
 #!/bin/bash
+# Edit the serial console entry at /etc/inittab matching to console parameter.
+ser_console() {
+	while test x"$1" != x
+	do
+		case $1 in
+			console=*)
+				scon=${1##console=};
+				sed -i -e "s|^7:2345:respawn:/sbin/agetty.*|7:2345:respawn:/sbin/agetty ${scon%%,*} ${scon##*,}|g" /etc/inittab
+				shift
+			;;
+			*)
+				shift
+			;;
+		esac
+	done
+}
+cmdline=`cat /proc/cmdline`
+ser_console $cmdline
+# reload inittab
+/sbin/init q
+#
 /etc/init.d/sysklogd start
 export LANG=en_US.utf8
 /usr/local/sbin/setup /dev/tty2 INSTALL