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Subject: Re: Multi-booting Grub Question (long)
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Dick Sutton wrote:
> I have been running linux for about a year, now.  However, I'm still a 
> newbie.  Here's the situation.  I'm currently running Ubuntu 5.06 LTS as 
> my main linux system.  Because of the work that I do, I must still use 
> Windows XP.  I also like to look at newer releases (i.e. Ubuntu 6.10, 
> etc).  So, I set up my system this way:
> 
> hda is dedicated to Windows XP
> 
> hdb1 is my Ubuntu 6.06 LTS system
> hdb2 is my Ubuntu 6.06 swap file
> 
> hdb3 is my Ubuntu 6.10 system
> hdb4 is my Ubuntu 6.10 swap file
> 
> Because the os's were installed (time wise) in that order, grub's 
> menu.lst file and associated code is located on hdb3.  As I'm sure some 
> of you are chuckling already (you know what's coming), I find that 
> whenever there are kernel updates to 6.06, Ubuntu updates the menu.lst 
> on hdb1.  When there are kernel updates to 6.10, the menu.lst on hdb3 
> gets updated.
> 
> Since the 6.10 system was the last one installed, that is the one that 
> is used when I boot my machine.  Therefore, I have to be really careful 
> to update the menu.lst on hdb3 when something changes on hdb1.
> 
> I want to cause grub to actually look on hdb1 (as it's my key system) 
> for the grub files.  I may want to load a future version of Ubuntu in 
> hdb3.  I have read the man pages for grub-install and grub-set-defaults 
> and I'm confused.
> 
> Do I have to do a complete grub-install (the grub files are already 
> loaded on hdb1 & hdb3 from previous installs)?
> 
> Or is there an easier way to cause grub to look at hdb1 instead of hdb3?
> 
> I assume that there is something loaded into the MBR that tells grub to 
> look in a specific place.  I'm sure this is simple, it just doesn't seem 
> so, now.
> 
> Thanks for your patience...
> 
> Dick

I am also a yearling but maybe Super Grub Disk can help. I've used it 
and it bailed me out of a no-boot situation and also saves a lot of time 
configuring grub. Here is a link to SGD's features page:
http://supergrub.forjamari.linex.org/?section=features
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