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I just installed Ubuntu 9.10 on my PC. I have Windows XP as the primary OS.

I am trying to set XP as the default OS with the following command in terminal:

sudo gedit /boot/grub/menu.lst

After that it should display something like this:

enter image description here

Instead it is showing a blank menu.lst file.

What's the problem? What should I do?

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This question could have some answers for you (though not a duplicate): superuser.com/questions/50684/… –  Gnoupi Nov 9 '09 at 14:47
    
("this question can have answers for you"... always a strange thing to say :]) –  Gnoupi Nov 9 '09 at 14:48
    
@ Gnoupi Nothing helpful.My problem is different –  ravi Nov 9 '09 at 14:49
    
nope. ubuntu 9.10 has switched to Grub2 which is just different. no menu.lst anymore. maybe look for a grub.cfg or similar? i haven't installed it yet so i can't tell you how to fix. :-/ –  quack quixote Nov 9 '09 at 14:53
    
I thought that one of the given commands to re-setup it would as well regenerate the menu.lst, pity. –  Gnoupi Nov 9 '09 at 14:53

2 Answers 2

up vote 3 down vote accepted

As the comments point out the new Grub is just setup differently. Now you'll want to make your personalized settings changes in the file: /etc/default/grub

At a terminal:

sudo gedit /etc/default/grub

Now you can change the relevant setting (just like the settings you were accustomed to in the previous version).

More information can be found at this helpful thread: Grub 2 Basics

Also take note of the section talking about the files contained in: /etc/grub.d/

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3  
Oh the joys of getting used to the new syntax of newer version of a bootloader. –  Sathya Nov 9 '09 at 18:49
    
I hear ya, I didn't even know about this until researching this question... the custom file thing is a bit archaic in my eyes... but we're sure to see some helpful config tools built around this... the joy of F/OSS! –  codeLes Nov 9 '09 at 21:22
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thanks for the info, codeLes, my searches hadn't managed to turn up a handy link like that one. –  quack quixote Nov 10 '09 at 0:12
    
+1 Thanks for the link.But I was too lazy to read it and in the meantime I found the exact answer.(See my answer) –  ravi Nov 10 '09 at 1:25
    
@ravi: I guess I should have given a bit more info, I think the answer still fits the context of your question... I'll just organize it a little better... –  codeLes Nov 10 '09 at 1:32

Following is the exact answer (worked for me perfectly):

Run following command

sudo gedit /etc/default/grub

change GRUB__DEFAULT=0 to 4

And then without forget run following command :

sudo update-grub

This will update the grub.

And you are done.

(Found this on this thread)

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