check grub menu.lst every shutdown

I have a strange problem: during the boot if I have UUID in my grub file for root the sys stops booting "waiting for root fs"

I sometimes forget to change after kernel update so I thought to solve it: 

I made a small script that changes the UUID into my device:

cp /boot/grub/menu.lst /boot/grub/menu.lst.old

cat  /boot/grub/menu.lst.old|sed -e s%UUID=[0-9,a-z,-]*%/dev/sda6%> /boot/grub/menu.lst.new

mv  /boot/grub/menu.lst.new  /boot/grub/menu.lst

then made it run every shutdown:

• sudo cp checkGrub.sh /etc/init.d/
• sudo ln -s /etc/init.d/checkGrub.sh /etc/rc0.d/K01checkGrub.sh
• sudo ln -s /etc/init.d/checkGrub.sh /etc/rc6.d/K01checkGrub.sh

that's all 

ciao alex barchiesi