Re: advanced dualboot linux+win with grub

From: Timothy Murphy (tim_at_birdsnest.maths.tcd.ie)
Date: 08/02/05 

Date: Tue, 02 Aug 2005 14:02:52 +0100

CBFalconer wrote:

> I don't know about grub, but I imagine the fundamentals are similar
> to lilo, in that the initial default and options are written into
> the MBR.

That isn't right.
The default is written in /etc/grub.conf ,
and can be changed without re-writing the MBR.

> After all, when the machine boots that is all the
> information available. So any such flipping of the default would
> involve rewriting the MBR. This would mean that any fault could
> easily write an invalid MBR and result in an unbootable machine.

You are wrong.

Regarding the OP's query, I have seen postings explaining
how to make changes similar to the one he/she wants.
It could be done by getting Linux to re-write /etc/grub.conf
when you logout.
But there is probably a better way. 

-- 
Timothy Murphy  
e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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