It sounds like your "most recent" distro is Fedora - so - re-install grub from Fedora. Google is your friend.
On Mon, Jul 11, 2016 at 6:45 AM, Kevin Wilson <wkevils@xxxxxxxxx> wrote:
Hi,
Thanks Todd.
The thing is that now CentOS is installed and it is the current
control and it indeed uses an older grub. So what do you suggest ?
That I will reinstall Ubuntu on Fedora on the current machine so they
will the "current control"? It is quite a hassle as there is no free
partition for it (unless I will resize it); and already there are 3 OS
installed on that machine. I believe there should be another way to do
it with the old grub without installing another OK on the same
machine,
Regards,
Kevin
On Sun, Jul 10, 2016 at 9:40 PM, Tod Merley <todbot88@xxxxxxxxx> wrote:
> I mean run "update-grub" from the Ubuntu distribution. It is the control.
>
> On Sun, Jul 10, 2016 at 11:38 AM, Tod Merley <todbot88@xxxxxxxxx> wrote:
>>
>> On a multi-boot machine the big question is “who controls the boot
>> process”.
>>
>>
>> My “big box” has two SSD (Ubuntu, CentOS) a 1T HDD (eight Linux partitions
>> if memory serves) and a small clunky HDD with W7.
>>
>>
>> In this case I choose Ubuntu to control the boot process and understand
>> that if I update the Kernel in any of the other distros I will not be able
>> to boot to it unless I run update-grub (Ubuntu script similar to your
>> mkconfig command) which will look at all the partitions and disks to boot to
>> the most recent first.
>>
>>
>> Likely CentOS is your current control and it likely uses an older grub.
>>
>>
>> Choose a recent “grub2” distro and make it your “boot control”.
>
>
>
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