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Re: Proposed release goal: Switch to GRUB2

On Wed, Apr 25, 2007 at 02:02:18PM -0300, Otavio Salvador wrote:
> Frans Pop <elendil@planet.nl> writes:
> > On Wednesday 25 April 2007 14:59, Otavio Salvador wrote:
> >> We, the GRUB team, want to swtich to GRUB2 due many reasons, basicaly:
> >>  - better codebase;
> >
> > Is grub2 fundamentally different from grub, or is it basically based on 
> > the current grub but just developed further?
> A complete rewrite code.

Note that although it's been rebuilt from scratch, there are many specific
portions of code (e.g. filesystems, or lib/device.c device pathname resolver)
that have been reintegrated into grub2.

> > Do you really mean multi-arch or just "supports more architectures"?

It's been redesigned to isolate arch-specific code, making the port to new
arches feasible.  Currently it supports i386 (and amd64..), powerpc, and
sparc64 is being worked on.

> > Has grub2 been checked for obvious past issues we've had in grub (like
> > /dev/cciss/c0d0 support)?
> It should support. Is difficult to test it without hardware access.

This kind of knowlege (about paths to specific devices) used to live in
lib/device.c for grub-legacy, and I believe it's all been ported to grub2
(although internaly it's handled very differently).

> > Does grub2 solve any of the issues we currently have with grub?
> > - xfs support
> Looks like.

I wasn't aware of this.  Did you try it?

> > - lvm support

There has been significant work into this area, including a SoC project
which AFAIK is now finished and integrated with CVS.  I haven't tried any of
this myself, though.  More at http://grub.enbug.org/LVMandRAID.

> > - wrong detection of correct boot device in BIOS

Can you be more specific?

Robert Millan

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