Grub vs lilo

[Mark McCulligh]

----- Original Message ----- 
From: "Otto Haliburton" <ottohaliburton at comcast.net>
To: "'Getting started with Red Hat Linux'" <redhat-install-list at redhat.com>
Sent: Wednesday, December 15, 2004 8:31 PM
Subject: RE: Grub vs lilo

> -----Original Message-----
> From: redhat-install-list-bounces at redhat.com [mailto:redhat-install-list-
> bounces at redhat.com] On Behalf Of Mark McCulligh
> Sent: Wednesday, December 15, 2004 8:28 AM
> To: Getting started with Red Hat Linux
> Subject: Re: Grub vs lilo
>
> I am not sure if it is still true but grub does not work right with
> Software Raid.  If you are using Software Raid you have to use lilo. If
> I remember right grub will only boot from the primary drive so if the
> primary drive is the one that crashed you cannot boot from the secondary
> drive. Were lilo can boot from either.
This statement is not true. No bootloader can boot from a drive that does
not have a MBR, cause the hardware transfer to that location.  If your bios
allows for booting from primary or slave drive then both lilo and grub can
and further more grub will boot linux or any OS no matter where it is
located so will lilo and they do this because the bootloader is not entirely
located in the MBR.  I think you are confusing grub with windows.  Windows
will not boot from any drive except the primary drive unquestionably.  And
the RAID statement is also untrue or you could not use and of the Fedora
Core products on RAID drives.  But no bootloader is perfect and grub and
lilo suffer from this weakness.
>
> Mark.
>
> Waldher, Travis R wrote:
>
> >I've used lilo since slackware 2.0
> >
> >I have a co-worker telling me grub is better; he just says it's
> >"easier".  Then again, I don't lilo to be brain surgery either.
> >
> >What is your opinions?
> >
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Sorry I did not clearly explain what I meant.  I have a machine had has 2
drives each are the primary drive on a their own channel. What I found was
that if I installed RedHat Ent 3 using grub on the machine and the first
drive fails the machine will not boot. But if I do the exact same thing but
use lilo it will boot from the second drive.  From what I have found and yes
I maybe wrong as this is what I found from digging is that with grub it only
puts the boot info on the first drive, while lilo puts the boot info on both
drives.  But this is only want I found when I was playing around with
software raid. I could not find a way to reboot the machine if I were using
grub and the first drive was the one that failed, but lilo worked no
problem.

Mark.

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