was: Dual boot linices?

[bruce.labitt at autoliv.com]

> > Anyone installed ubuntu to be 
> > dual boot with centos?  What do I look out for?
> 
> If you wanted to use a shared /boot between the two, it'd be a bit
> messy... For one, Ubuntu uses menu.lst for its grub config, CentOS uses
> grub.conf, with a menu.lst symlink to it, so depending on which distros
> version of grub is actually installed into the boot sector...
> 
> What I'd do is have separate /boot partitions for each. Install Ubuntu
> with /dev/sda1 as /boot, with grub installed into the MBR. Then install
> CentOS with /dev/sda2 as its boot, and install grub into the beginning
> of the partition, instead of the MBR. Now configure Ubuntu's grub to
> chainload CentOS' grub on /dev/sda2. Then both can happily update their
> boot menu options without stomping on one another.
> 

I already have CentOS installed on my machine.  I don't really understand 
your explanation of what to do.  I think it is a reflection of my 
knowledge in this area rather than your explanation.

What do I need to change in CentOS first?
How do I alter the Ubuntu install, so I don't hose the CentOS install?

Why are these linices hostile to each other?  Philosophical question, I 
sort of understand your explanation.  Many linux distros are tolerant to a 
dual boot with windows, but not as it seems, to other linux distros?

-Bruce

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