List Archive: gentoo-dev
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On Mon, Jun 25, 2012 at 11:19 AM, Doug Goldstein <email@example.com> wrote:
> Since Grub Legacy and Grub 2 are slotted, Portage won't remove the
> older version. Even if it removes the older one, everything necessary
> is installed into /boot and the MBR already.
Portage will remove the older slot the next time the user runs emerge
--depclean unless sys-boot/grub:0 is added to the world file. I'm
looking for a good way to communicate this to the user.
How about this: For ~arch, we do an ewarn in pkg_postinst if grub:0 is
installed. For stable, we do a news item.
> The best route forward would be to instruct people to use
> grub2-install (but whatever the flag is to prevent MBR installation).
> Have people generate their grub.cfg with grub2-mkconfig and then put a
> chain loader into the Grub Legacy configs so that they can test Grub 2
> and then once they test it tell them to install Grub 2 into the MBR
> and remove Grub Legacy.
Yeah, I vaguely remember trying this when I first installed grub:2.
You can prevent the MBR installation by stubbing out the grub-setup
call. For example:
grub2-install --grub-setup=/bin/true /dev/sda
You would then load /boot/grub2/i386-pc/core.img just like a Linux
kernel from menu.lst.
If you (or anyone) wants to test and verify that this actually works,
that would be great.
> I'll gladly work with you on this. IMHO, it might be a good plan to
> unmask and ~arch one of the release candidates with an aim to get Grub
> 2.0.0 fully released with docs.
That sounds like a good idea.