Ubuntu/Ubuntu dual boot and grub2

[Tom H]

On Sun, Oct 31, 2010 at 4:37 PM, Colin Law <clanlaw at googlemail.com> wrote:
> On 31 October 2010 19:39, Tom H <tomh0665 at gmail.com> wrote:
>> On Sun, Oct 31, 2010 at 1:18 PM, Colin Law <clanlaw at googlemail.com> wrote:
>>>
>>> I have a system with Lucid installed, and have installed Maverick on a
>>> small separate partition in order to check it out prior to upgrading
>>> my Lucid partition.  This works fine except that the Maverick
>>> partition is what one might call the master partition in the sense
>>> that it appears at the top of the grub boot list, and if I want to
>>> change boot options I do it in /default/grub in the Maverick
>>> partition.
>>>
>>> I would like the Lucid partition to be the master one so that at some
>>> point I can simply remove the Maverick partition and upgrade Lucid.  I
>>> guess I can do this using the same method as for when Windows messes
>>> up the MBR, as described in [1].  Is there a better or easier way?
>>>
>>> [1] https://help.ubuntu.com/community/RecoveringUbuntuAfterInstallingWindows
>>
>> I haven't checked the link but the way to make Lucid's "/boot" the
>> master grub directory is to boot into Lucid and run "sudo grub-install
>> /dev/sdX" where sdX is the boot device.
>
> Great, that did it.  Many thanks.

You're welcome.