RE: [gentoo-dev] Point of fact.

[Martin Schlemmer]

On Fri, 2002-03-08 at 18:51, Erik Grinaker wrote:
> On Fri, 2002-03-08 at 16:55, Sean Mitchell wrote:
>
> > Well, the rest of that whole post aside, many of us have had trouble with
> > grub because we have no separate /boot partition. In my case, my /boot
> > partition is on /dev/hde1, which grub just can't seem to find.
> >

I have experienced the same problem in the past.  Try the following:

  device (hd0) /dev/hde
  root (hd0,0)  #or whatever
  ....

This works for me.

> > I like grub, but I've had much more success with lilo.
>
> This is all explained in the grub documentation
> (http://www.gnu.org/manual/grub-0.90/html_chapter/grub_toc.html).
>
> The biggest problem people have with GRUB is that they fail to realize
> what root in the GRUB config means - it is not the system root, but the
> root where the kernel images reside. In other words, your boot
> partition.
>

Not entirely.  root(hd?,?) sets the root partition for Grub's stage
files.

You can specify a kernel on a alternative partition:

  root (hd0,0)
  kernel (hd0,1)/vmlinuz root=/dev/foo bar ...

> Your config entry should be for exampe "root (hd0,0)", where hd0,0 is
> your boot partition.
>
> When you specify your kernel image you must do this relative to your
> boot root, which usually should be /<your-kernel-image>. And then you
> pass your *system root* as a boot argument, for example ;
>
> kernel /bzkernel-2.4.18-2 root=/dev/hda5
>
> Now, in order to avoid all this confusion (or perhaps add to it :)), you
> can create a symlink from /boot/boot to /boot. This allows you to
> specify /boot/<kernelimage> in your grub config. To do this, issue the
> command "cd /boot && ln -s . boot".
>

It works on my system with a seperate /boot partition, but without the
/boot/boot symlink.

> now it will work to specify your kernel image as, for example ;
>
> kernel /boot/bzkernel-2.4.18-2 root=/dev/hda5
>
> GRUB is far superior to LILO in pretty much every conceivable way, as
> long as you read the documentation and understand how it works. And when
> you do so you will quickly see that LILO is a child's toy in comparison.
>
>
> Feel free to add this to the docs...
>
> --
>
> Erik Grinaker
> Freelance UNIX/Linux systems consultant
>
> "Perfection is acheived not when there is nothing more to add, but
> rather when there is nothing more to take away"
> - Antoine de Saint-Exupéry
>
>
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-- 

Martin Schlemmer
Gentoo Linux Developer, Desktop Team Developer
Cape Town, South Africa