This is a question regarding this HowTo: How To Set Up Software RAID1 On A Running System (Incl. GRUB Configuration) (Debian Etch) I've set up my system using this HowTo, and it's running great. At boot up, I get a choice to boot from either hd0 or hd1: Today, I got this Debian security update: So I do a "apt-get update" and "apt-get upgrade". After it has installed the new kernel image, it tells me to reboot which I do. At reboot, I immediately noticed it has changed grub's menu.lst without creating a backup of my old menu.lst. So I change the menu.lst back to what it is supposed to be. But is that the only I need to change/do after a new kernel image has been installed? Or do I need to do some other stuff too, perhaps a "update-initramfs -u"?