grub not configured properly after 8.10 install

[Lorenzo Luengo]

Graham Watkins wrote:
> Hi folks,
>
> Finally plucked up the courage to install 8.10 but didn't want to 
> install over my existing 8.04 installation. I have 2 hard drives: hd0 
> which formerly contained a now unwanted Mandriva system, and hd1 where 
> my 8.04 installation resides. I therefore installed 8.10 on hd0.
>
> Although the installation went through without incident and announced 
> that it was searching for other operating systems, when I rebooted the 
> grub menu showed 8.10 only.
>
> With the aid of a supergrub disk (with which I cannot claim any great 
> expertise) I have managed to boot 8.04 again although not to build a new 
> grub menu containing both OSs.
>
> For the time being I want 8.04 to be my main system as I have it 
> configured the way I like it - which took some time. 8.10 for now is 
> just to play with.
>
> Is there a quick and dirty (ideally GUI based) way of re-writing grub 
> which will permit me to choose between the 2 systems without continually 
> having to use a boot disk?
>   
I think the most "GUI" way to do this is

$ gedit /boot/grub/menu.lst

Maybe just copying the grub entry for 8.10 installation and changing the 
root (hd0,0) (or something similar, and choosing the right kernel file)  
should be enough.
> I have tried using the 8.04 install disk to rewrite grub but ended up 
> just installing 8.04 over 8.10.
>
> Ideas anyone?
>
>   


-- 
Lorenzo Luengo Contreras
Administrador de Sistemas DGEO
Universidad de Concepción
Concepción - Chile
+56-41-2207277