Changing grub default boot order

[Colin Law]

On 31 March 2013 05:25, Basil Chupin <blchupin at iinet.net.au> wrote:
> On 31/03/13 00:38, Jim Byrnes wrote:
>>
>> On 03/29/2013 10:51 PM, Basil Chupin wrote:
>>>
>>> On 29/03/13 02:47, Jim Byrnes wrote:
>>>>
>>>> I upgraded from 10.04 to 12.04 by installing 12.04 on a different hard
>>>> drive and dual booting.  Now I would like to make 12.04 (sdb) the
>>>> default.  This link [1] suggests using grub-customizer [2]. Does
>>>> anyone have any experience with this app?
>>>>
>>>> [1]
>>>>
>>>> http://askubuntu.com/questions/100232/how-do-i-change-the-grub-boot-order
>>>>
>>>> [2]
>>>>
>>>> http://www.howtogeek.com/howto/43471/how-to-configure-the-linux-grub2-boot-menu-the-easy-way/
>>>>
>>>>
>>>> Thanks,  Jim
>>>>
>>>
>>> I have read all the replies you received to your question. However, as
>>> you correctly point out when the next time you have an ugrade to the
>>> kernel or whatever you will strike hassles. So let's get this sorted out
>>> now instead of later. How about you provide us with:
>>
>>
>> Basil,
>>
>> I think it is solved now by changing GRUB_DEFAULT=0 to GRUB_DEFAULT=14.  I
>> think this should survive updates as 10.04 is at the top of the menu and
>> there will be no more updates to it. Thus sdb1 (12.04) will always be a
>> position 14. To be complete I will provide the info you requested.
>
>
> Hi Jim,
>
> I will leave responding to the rest of your message until after you give us
> the answer to this questions, and the reason why I am asking this is because
> that figure of 14 you set for the GRUB_DEFAULT is just plain wrong - or at
> least it is just plain zanny :-) . I expect this figure to be no more than
> 2.

Can the not sort it all out by booting into 12.04 and running
sudo grub-install /dev/sda
sudo update-grub

Colin