Do I Need to <setup> GRUB

Justin Julian d4mography at
Fri Apr 1 10:31:47 PST 2005

You should not have to re-run grub every time you change your
grub.conf file (one of the many advantages of grub over LiLo). If you
have properly installed grub, and can boot your host system with it,
then you should just change your grub.conf file with the new

Just make sure that the arguments you pass in the <kernel> statement
are correct. Always be sure to back up the file before you modify it,
and always make sure you have a boot / rescue disk handy. Always leave
your host system as the default, and add the new system in a
non-default position. If you select a non-default option at the grub
menu, and grub cannot boot that OS, grub is usually quite good at
kicking you back to the grub menu, and allowing you to choose another

Clear as mud?

On Mar 31, 2005 7:57 PM, Dan McGhee <farmerdan at> wrote:
> I have been following LFS 6.0 religiously and am almost at the "make
> bootable" point.  My host system is Mandrake 10 (on /dev/hdb1), LFS is
> on /dev/hdb5, and I also run XP (on hda1).  My objective is to trash
> Mandrake after I get LFS up, running and configured.
> In preparation for making LFS bootable, I switched from LILO to GRUB in
> my host system.  That means, I think, that GRUB is already in the MBR.
> (OT--That's one of the things that Mandrake hides from the user-- what
> is actually what's going on and is one reason why I'm switching to
> LFS.)  Based on what I've learned from the GRUB Manual and the hints, I
> think that the only thing I need to do is put the appropriate statements
> in /boot/grub/menu.lst  in EACH distro.  The "power" lines would be:
> title LFS 6.0
> root (hd1, 4)
> kernel /boot/lfskernel- root=/dev/hdb1
> title Mandrake
> root (hd1,0)
> kernel /boot/kernel-
> title Windows
> rootnoverify (hd0,0)
> chainloader +1
> I would have identical entries in each /boot/grub/menu.lst file for both
> Mandrake and LFS.  This would be done without running <setup>.
> Is my logic correct?  (Have I begun to learn GRUB :)?
> Any comments or redirection to documentation would be helpful.
> Thanks,
> Dan
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