[ubuntu-in] scripting in grub.cfg

[Nandan Vaidya]

On 29 November 2010 15:27, Nitesh Mistry <mailbox at mistrynitesh.net> wrote:

> On Mon, Nov 29, 2010 at 01:53:45PM +0530, Alok Singh Mahor wrote:
> > Hi all,
> > my grub menu has 5 entries. grub.cfg has line set default="0"
> > i want to change its value alternately on every restart from 0 to 4 and 4
> to
> > 0
> > so I can get different default on grub menu everytime at startup. I think
> I
> > have to add few if/else to do this. but I am unable to do. please tell me
> > how can I achieve this?
>
> Though I don't know exact answer to your question, I would like to remind
> you that whatever changes you want to make, make them in
> /etc/grub.d/00_header
> file (after backing up the original file ofcourse). Otherwise all your
> changes
> will get wiped out the next time either you or the kernel upgrade routine
> does
> grub-update.
>
> grub-update automatically updates /boot/grub/grub.cfg using the values /
> instructions in /etc/grub.d/* files
>
>
Instead of the /etc/grub.d/00_header file, the set default option has to be
changed from /etc/default/grub AFAIK !
Its the " GRUB_DEFAULT " column entry

To the original poster:
 This wiki page:
https://help.ubuntu.com/community/Grub2

along with this forum entry:
http://ubuntuforums.org/showthread.php?t=1195275

 should help you I guess :)


-- 


Nandan Vaidya
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