What's the easiest way for a shell script to tell if grub version 1 is installed?
Stephen Powell wrote:
> What's the easiest way for a shell script to tell if grub version 1
> is installed? It is important to distinguish grub version 1 from
> grub version 2. For example, can I just do this?
> if [ -f /boot/grub/menu.lst ];then
If you only need to know if the grub2 *package* is installed then a
very quick check is to see if the documentation directory for it is
installed. Since all packages are required by Debian Policy to have a
if [ -d /usr/share/doc/grub-pc ]; then
echo The Grub2 package is installed.
> Or does that file exist in grub version 2 as well?
If the machine was upgraded from version 1 to version 2 then the
menu.lst file will be left behind until manually removed. Because it
facilitates returning to version 1 if required.
But having the package installed doesn't meant that the machine
actually has grub2 installed in the boot path. That seems a little
I recently read this blog entry by Colin Watson that talked a little
bit about grub versions and the problems of mixing them. You might
find it interesting.