Grub2 and multiple boot different ubuntu versions

[Karl Larsen]

On 03/24/2010 08:41 AM, Goh Lip wrote:
> Colin Law wrote:
>
>    
>> Hi
>>
>> I had a double boot setup with XP and Karmic.  I installed Lucid Beta
>> 1 in a separate partition and on boot it gives me the menu with Lucid
>> at the top followed by Karmic kernels and XP, and all works well.  As
>> Lucid is just for testing, however, I want it do default to Karmic
>> boot so I set GRUB_DEFAULT=5 in /etc/default/grub, run sudo
>> update-grub and again all is well.
>> Each time the Lucid kernel is updated, however, I need to add two to
>> GRUB_DEFAULT as there are new kernels above it.  I wonder whether it
>> is possible to rearrange the grub menu so Karmic is at the top and I
>> can leave the default at 0.  I have contemplated booting into Karmic
>> and running update-grub but I hesitate to do this in case it is a bad
>> idea, not really understanding how grub works.
>> It would be nice if grub allowed a regex setting for the default boot
>> when specifying a string, defaulting to the first matching name, but I
>> have not seen this in the docs.  It would seem like a trivial
>> extension.
>>
>> Colin
>>      
>
> Try 'saved' as default. Yes, it will boot last booted entry not a
> 'preselected' entry.
>
> Regards - Goh Lip
>
>
>    
         Grub2 makes changing the list VERY difficult. In the bad old 
days of Grub1 I would put menu.lst in any editor and , in this case make 
Karmic number 0. But I have seen guys who say even with Grub2 you can 
edit grub.cfg with great care and it will work. I have not tried this 
yet. But will.


73 Karl