multibooting linux

[JD]

>
> On Wed, 23 Jun 2010 17:13:11 +0000
> g wrote:
>
>    
>> my question is how is it advantages over a single grub menu for all installs?
>>      
> You run "yum update" in 1st system, it rewrites grub.conf, making new
> kernel the default.
>
> You run "yum update" in 2nd system, it rewrites grub.conf, making
> it the default.
>
> You run "yum update" in 3rd system, it rewrites grub.conf and removes
> the 1st system completely :-).
>
> etc...
>
> On the other hand if you have a standalone grub that does nothing
> but chainload each of the other systems, then each other system
> is perfectly self contained, updates to the grub.conf on it only
> apply to it, you don't have to fix things by hand.
>    
Thank you Tom - that is about as clear as it gets
re: multibooting and why should not share grub.conf