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Re: Regarding GRUB 2 (was: Re: Bug#516458: HFS module fails to read some files)

On Thu, 2009-09-03 at 13:59 -0300, Rogério Brito wrote: 
> On Feb 21 2009, Michel Dänzer wrote:
> > The HFS filesystem module fails to read some files, in particular files with
> > an underscore in the filename. This makes GRUB2 unable to load _linux.mod
> > from an HFS filesystem, making it hard for PowerPC Mac users to migrate from
> > yaboot to GRUB2.
> (...)

BTW, this bug is fixed now.

> What are your experiences with grub-ieee1275?
> I tried some months ago to install it and all that I got was some
> complaint about not knowing what to do with the graphical framebuffer (I
> don't remember the literal message).

Sounds like bug #520846? Looks like that should also be fixed now.

> How does it work for you?

Quite well, though there are still bugs that can prevent it from working
quite out of the box on PowerMacs. E.g. I still have to manually remove
search commands from /boot/grub/grub.cfg, or it fails to boot the Linux
kernel. However, even with problems like that, I like it much better
than yaboot because the boot time user interface is much more powerful.

> I'm still keeping an installation of MacOS X 10.4 on my iBook G3 and I
> would like to keep it.

AFAIK grub2 still can't boot Mac OS on PowerMacs, but you can always
boot it by holding the alt/option key during OF initialization.

In summary I'd say that it can be made to work by an experienced user,
but you should take it slowly and make sure you can go back to a known
working state at each step in case something goes wrong. In particular,
only change the boot-device variable in NVRAM after you've successfully
booted grub2 manually from an OF prompt.

Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer

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