--- recepies/amt/serial-console.sh	2009/05/17 11:50:30	76
+++ recepies/amt/serial-console.sh	2009/05/18 08:26:23	87
@@ -4,6 +4,8 @@
 
 ttyS=`dmesg | grep ttyS | grep 0xe | sed 's/^.*\(ttyS[0-9]\).*$/\1/'`
 
+test -z "$ttyS" && echo "Can't find serial port in dmesg output" && exit
+
 if ! grep ttyS1 /etc/inittab | grep -v ^# ; then
 	echo "Am:2345:respawn:/sbin/getty $ttyS 115200 vt100-nav" >> /etc/inittab
 	init q
@@ -12,8 +14,21 @@
 ps ax | grep $ttyS | grep -v grep
 
 grub=/boot/grub/menu.lst
+tmp=/tmp/menu.lst
 
 if ! grep '^# kopt=' $grub | grep console= ; then
-	cat $grub | sed "s/^\(# kopt=.*\)$/\1 console=$ttyS,115200/" > $grub.serial
-	diff -urw $grub $grub.serial
+	cat $grub | sed "s/^\(# kopt=.*\)$/\1 console=$ttyS,115200/" > $tmp
+else
+	cat $grub > $tmp
+fi
+
+
+if ! grep 'terminal *serial' $grub ; then
+	port=`dmesg | grep ttyS | grep 0xe | sed 's/^.*\(0xe[0-9a-f]*\).*$/\1/'`
+	echo "serial --port=$port --speed=115200" >> $tmp
+	echo "terminal serial" >> $tmp
+fi
+
+if ! diff -urw $grub $tmp ; then
+	mv $tmp $grub && update-grub
 fi