GRUB_DEFAULT default (not a typo)

Colin Law clanlaw at googlemail.com
Thu Apr 4 16:39:17 UTC 2013


On 4 April 2013 17:34, Jim Byrnes <jf_byrnes at comcast.net> wrote:
> On 04/04/2013 10:52 AM, Colin Law wrote:
>>
>> On 4 April 2013 16:46, Kevin O'Gorman <kogorman at gmail.com> wrote:
>>>
>>> I've been following another discussion, "Changing grub default boot
>>> order"
>>> and took a look at /etc/default/grub, where the line
>>>     GRUB_DEFAULT=saved
>>> appeared.  I don't think I put that there, but I could not swear to it.
>>> I
>>> seem to recall that this setting used to cause GRUB to remember the last
>>> entry used and to use it again by default.  That is not happening on my
>>> machine, a fresh Xubuntu install of 12.04.
>>>
>>> Instead, GRUB always defaults to entry 0, and I have to change it to
>>> entry 5
>>> because entry 0 is bogus, GRUB having picked up some historical artifacts
>>> and put them in the menu.
>>
>>
>> To quote from [1] (google is great isn't it)
>> "Saving an OS can be achieved by running sudo grub-set-default if
>> GRUB_DEFAULT=saved is set in /etc/default/grub. It may also be saved
>> if GRUB_SAVEDEFAULT=true is also set in /etc/default/grub. In this
>> case, the default OS remains until a new OS is manually selected from
>> the GRUB 2 menu or the grub-set-default command is executed."
>>
>> I have not tried it myself.
>> Colin
>>
>> [1] https://help.ubuntu.com/community/Grub2
>>
>
> I may have started that discussion. I have 2 hard drives with a bootable OS
> on each (Ubuntu 10.04 & 12.04).  I just checked and I do not have
> GRUB_DEFAULT=saved on either one of them. To get any changes I made to
> GRUB_DEFAULT=(some number) to take effect I had to change it on both OS's.

This is off topic for this thread, but actually you did not have to
change both of them, just the right one (which was not the one you
tried first).

Colin




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