Greetings:

I have the ff:

1st hdd, partitions (2) -->winxp
2nd hdd, partitions (3
mandriva one
kubuntu 6
suse 10


My concern is, right now the grub I use is from suse. What I want to resolve is to use the grub in mandriva or kubuntu. Do I need to reinstall mandriva or kubuntu to the MBR so that I can use their Grub.
Is this correct? or Is there any way to do that...Thanks..

Hi,
How could you choose between different OS's if they didnt exist in the grub?

Do you actually only want to be able to boot the other two distros from the same grub menu ???.
This makes more sense.

No you don't have to re-install - have a look at /boot/grub/menu.lst; it builds the menu you see. You merely need to add entries for the other distros. Generally you can figure this out by looking at the menu.lst files on the appropriate partition, then copy the relevant bits into your Suse menu.lst

As already stated, you can use the existing GRUB install to load any of your Linux versions.

You can install GRUB such that it points to any of your Linux partitions to find its files. Here is the basic procedure:
grub #opens the GRUB shell
root (hdX,Y) #tells GRUB where "home base" is going to be--ie where it will find the /boot/grub directory with the config file, stage files, etc.
setup (hdZ)

Note that GRUB numbering starts from 0.....If you want "home base" to be hdb2 and GRUB stage1 installed on the mbr of hda, the above commands become:
root (hd1,1)
setup (hd0)

See my "booting" link below (includes a link to the GRUB manual)