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   NNTP-Posting-Date: Wed, 14 Feb 2007 10:18:57 -0600   
   Date: Wed, 14 Feb 2007 11:18:54 -0500   
   From: Dick Sutton    
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   Newsgroups: alt.os.linux.ubuntu   
   Subject: Multi-booting Grub Question (long)   
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   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   
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